path: root/tools/metrics/histograms/histograms.xml

<!--
Copyright 2013 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<!--
This file is used to generate a comprehensive list of Chrome histograms along
with a detailed description for each histogram.

Please pretty-print and validate your edits by running the pretty_print.py
and validate_format.py scripts in the same directory as this file before
uploading your change for review.

Take a moment to page through the contents of this file. You will find
three sections:

* The histograms section describes base histograms, giving their name,
  and optionally their units or enum type, a short one-line summary,
  and optionally a more detailed description.
* The enums section defines and documents the enumerated types referred to by
  the histograms.
* The fieldtrials section defines active field trials and their groups, along
  with their descriptions.

Each field trial lists the histograms that it affects. The complete list of
histograms is computed by appending the field trial group names to each of
the affected histograms. For example, define the following:

  <histogram name="FileLoadLatency"/>

  <fieldtrial name="SuperHttpExperiment">
    <group name="SuperHttpEnabled">
    <group name="SuperHttpDisabled">
    <affected-histogram name="FileLoadLatency"/>
  </fieldtrial>

The complete list of histograms will be:

  FileLoadLatency
  FileLoadLatency_SuperHttpEnabled
  FileLoadLatency_SuperHttpDisabled

Field trial definitions can currently be used in any situation where multiple
suffixes need to be appended to a histogram name; they do not have to
correspond to actual field trials in the Chrome source code.

TODO(mlloyd): Refactor the XML so that field trials can be distinguished from
other types of suffix sets.
-->

<histogram-configuration>

<!-- Histogram definitions -->

<histograms>

<histogram name="Autocheckout.Bubble" enum="AutocheckoutBubble">
  <summary>
    Measures the frequency of user interactions with the Autocheckout bubble,
    which prompts users to invoke Autocheckout on supported websites.
  </summary>
</histogram>

<histogram name="Autocheckout.BuyFlow" enum="AutocheckoutBuyFlow">
  <summary>
    Measures the frequency of final states reached in Autocheckout buy flow.
  </summary>
</histogram>

<histogram name="Autocheckout.DismissalState"
    enum="AutofillDialogDismissalState">
  <summary>The state of the Autocheckout dialog when it was dismissed.</summary>
</histogram>

<histogram name="Autocheckout.FlowDuration" units="ms">
  <summary>
    Measures the time elapsed between when the user submitted the Autocheckout
    dialog and when the Autocheckout flow, or filling process, concluded.
  </summary>
</histogram>

<histogram name="Autocheckout.FlowDuration.Failed" units="ms">
  <summary>
    Measures the time elapsed between when the user submitted the Autocheckout
    dialog and when the Autocheckout flow concluded, in cases where the flow
    failed.
  </summary>
</histogram>

<histogram name="Autocheckout.FlowDuration.Succeeded" units="ms">
  <summary>
    Measures the time elapsed between when the user submitted the Autocheckout
    dialog and when the Autocheckout flow concluded, in cases where the flow
    succeeded.
  </summary>
</histogram>

<histogram name="Autocheckout.InitialUserState"
    enum="AutofillDialogInitialUserState">
  <summary>
    The initial state of a user that's interacting with a freshly shown
    Autocheckout dialog.
  </summary>
</histogram>

<histogram name="Autocheckout.PopupInDialog" enum="AutofillDialogPopupEvent">
  <summary>
    User interactions with the Autofill popup shown while filling an
    Autocheckout dialog.
  </summary>
</histogram>

<histogram name="Autocheckout.Security" enum="AutofillDialogSecurity">
  <summary>
    Measures the frequency of security warnings and errors in the Autocheckout
    dialog.
  </summary>
</histogram>

<histogram name="Autocheckout.UiDuration" units="ms">
  <summary>
    Measures the duration for which an Autocheckout dialog was shown.
  </summary>
</histogram>

<histogram name="Autocheckout.UiDuration.Cancel" units="ms">
  <summary>
    Measures the duration for which an Autocheckout dialog was shown, in cases
    where the user ended up canceling out of the dialog.
  </summary>
</histogram>

<histogram name="Autocheckout.UiDuration.Submit" units="ms">
  <summary>
    Measures the duration for which an Autocheckout dialog was shown, in cases
    where the user ended up accepting the dialog.
  </summary>
</histogram>

<histogram name="Autocheckout.UiEvents" enum="AutofillDialogUiEvents">
  <summary>
    Measures how users are interacting with the Autocheckout dialog UI.
  </summary>
</histogram>

<histogram name="Autocheckout.WalletErrors" enum="WalletErrors">
  <summary>
    Measures the frequency of errors in communicating with the Google Online
    Wallet server.
  </summary>
</histogram>

<histogram name="Autocheckout.WalletRequiredActions"
    enum="WalletRequiredActions">
  <summary>
    Measures the frequency of required user actions returned by the Google
    Online Wallet server.
  </summary>
</histogram>

<histogram name="Autofill.AddressSuggestionsCount">
  <summary>
    The number of address suggestions shown in the Autofill popup.
  </summary>
</histogram>

<histogram name="AutoFill.CCInfoBarAccepted">
  <obsolete>
    Deprecated as of 3/2011, replaced by Autofill.CreditCardInfoBar.
  </obsolete>
  <summary>The Autofill credit card info bar was accepted.</summary>
</histogram>

<histogram name="AutoFill.CCInfoBarDenied">
  <obsolete>
    Deprecated as of 3/2011, replaced by Autofill.CreditCardInfoBar.
  </obsolete>
  <summary>The Autofill credit card info bar was denied.</summary>
</histogram>

<histogram name="Autofill.CreditCardInfoBar" enum="AutofillCreditCardInfoBar">
  <summary>
    The relative frequency with which users accept, deny, or ignore the Autofill
    credit card info bar prompt.
  </summary>
</histogram>

<histogram name="Autofill.DeveloperEngagement"
    enum="AutofillDeveloperEngagement">
  <summary>
    Measures the adoption of the HTML autocomplete type hint specification (see
    http://is.gd/whatwg_autocomplete for more details).  For each fillable form
    detected, logs whether that form includes author-specified type hints.
  </summary>
</histogram>

<histogram name="Autofill.FillDuration.FromInteraction.WithAutofill">
  <summary>
    Time elapsed between the user's first interaction with a form and the form's
    submission, for an autofilled form.
  </summary>
</histogram>

<histogram name="Autofill.FillDuration.FromInteraction.WithoutAutofill">
  <summary>
    Time elapsed between the user's first interaction with a form and the form's
    submission, for a non-autofilled form.
  </summary>
</histogram>

<histogram name="Autofill.FillDuration.FromLoad.WithAutofill">
  <summary>
    Time elapsed between form load and form submission, for an autofilled form.
  </summary>
</histogram>

<histogram name="Autofill.FillDuration.FromLoad.WithoutAutofill">
  <summary>
    Time elapsed between form load and form submission, for a non-autofilled
    form.
  </summary>
</histogram>

<histogram name="Autofill.IsEnabled.PageLoad" enum="BooleanEnabled">
  <summary>
    Tracks whether Autofill is enabled on page load for a page containing forms.
  </summary>
</histogram>

<histogram name="Autofill.IsEnabled.Startup" enum="BooleanEnabled">
  <summary>Tracks whether Autofill is enabled when Chrome launches.</summary>
</histogram>

<histogram name="AutoFill.ProfileCount">
  <obsolete>
    Deprecated as of 3/2011, replaced by Autofill.StoredProfileCount.
  </obsolete>
  <summary>The number of Autofill address profiles a user has.</summary>
</histogram>

<histogram name="AutoFill.Quality" enum="AutofillQuality">
  <obsolete>
    Deprecated as of 3/2011, replaced by Autofill.Quality.
  </obsolete>
  <summary>The quality of the AutoFill implementation.</summary>
</histogram>

<histogram name="Autofill.Quality" enum="AutofillQuality">
  <summary>The quality of the Autofill implementation.</summary>
</histogram>

<histogram name="Autofill.Quality.HeuristicType" enum="AutofillTypeQuality">
  <summary>The quality of Autofill's heuristic field type detection.</summary>
</histogram>

<histogram name="Autofill.Quality.HeuristicType.ByFieldType"
    enum="AutofillTypeQualityByFieldType">
  <summary>
    The quality of Autofill's heuristic field type detection, broken down by the
    specific field type.  Fields with multiple possible types (based on the
    stored Autofill data) are logged as having ambiguous type.
  </summary>
</histogram>

<histogram name="Autofill.Quality.PredictedType" enum="AutofillTypeQuality">
  <summary>The overall quality of the Autofill field type predictions.</summary>
</histogram>

<histogram name="Autofill.Quality.PredictedType.ByFieldType"
    enum="AutofillTypeQualityByFieldType">
  <summary>
    The overall quality of the Autofill field type predictions, broken down by
    the specific field type.  Fields with multiple possible types (based on the
    stored Autofill data) are logged as having ambiguous type.
  </summary>
</histogram>

<histogram name="Autofill.Quality.ServerType" enum="AutofillTypeQuality">
  <summary>The quality of the Autofill server's field type detection.</summary>
</histogram>

<histogram name="Autofill.Quality.ServerType.ByFieldType"
    enum="AutofillTypeQualityByFieldType">
  <summary>
    The quality of the Autofill server's field type detection, broken down by
    the specific field type.  Fields with multiple possible types (based on the
    stored Autofill data) are logged as having ambiguous type.
  </summary>
</histogram>

<histogram name="AutoFill.RequestErrorimcklfaapmppdhilegjoahjbahdgfhcn">
  <summary>TBD.</summary>
</histogram>

<histogram name="AutoFill.RequestSuccessimcklfaapmppdhilegjoahjbahdgfhcn">
  <summary>TBD.</summary>
</histogram>

<histogram name="Autofill.ServerExperimentId" enum="AutofillExperimentId">
  <obsolete>
    Deprecated as of 6/2011, replaced by Autofill.ServerExperimentId.Query.
  </obsolete>
  <summary>
    The experiment ID received in response to an Autofill server query.
  </summary>
</histogram>

<histogram name="Autofill.ServerExperimentId.Query" enum="AutofillExperimentId">
  <summary>
    The experiment ID received in response to an Autofill server query.
  </summary>
</histogram>

<histogram name="Autofill.ServerExperimentId.Upload"
    enum="AutofillExperimentId">
  <summary>
    The experiment ID received at the time of an Autofill upload.
  </summary>
</histogram>

<histogram name="AutoFill.ServerQueryResponse" enum="AutofillQueryResult">
  <obsolete>
    Deprecated as of 3/2011, replaced by Autofill.ServerQueryResponse.
  </obsolete>
  <summary>The usefulness of AutoFill server information.</summary>
</histogram>

<histogram name="Autofill.ServerQueryResponse" enum="AutofillQueryResult">
  <summary>The usefulness of Autofill server information.</summary>
</histogram>

<histogram name="Autofill.StoredProfileCount">
  <summary>
    The number of Autofill addresses a user has stored, measured at launch time.
  </summary>
</histogram>

<histogram name="Autofill.UserHappiness" enum="AutofillUserHappiness">
  <summary>
    Measures the frequency of various events in the Autofill user interaction
    flow.  By comparing frequencies, we can compute several interesting
    &quot;user happiness&quot; metrics.
  </summary>
</histogram>

<histogram name="Clipboard.IncognitoUseCase" enum="ClipboardAction">
  <obsolete>
    Deprecated as of 4/2013, experiment confirmed correctness of our patch.
  </obsolete>
  <summary>
    Counts how often the user writes or reads from the clipboard and whether the
    write was from an incognito window or not.
  </summary>
</histogram>

<histogram name="DiskCache.TotalIOTime" units="milliseconds">
  <obsolete>
    Deprecated.
  </obsolete>
  <summary>
    The total time it takes to perform a payload IO operation, for the regular
    disk cache.
  </summary>
</histogram>

<histogram name="Enterprise.Policies" enum="EnterprisePolicies">
  <summary>
    A set of enterprise policy rules that are in use. This is recorded every 24
    hours and at startup, if the last recording was earlier than a day before.
  </summary>
</histogram>

<histogram name="Extensions.FunctionCalls" enum="ExtensionFunctions">
  <summary>Number of calls to extension functions.</summary>
</histogram>

<histogram name="HttpCache.EntryLockWait" units="milliseconds">
  <summary>
    The time spent waiting for write lock on a disk cache entry.
  </summary>
</histogram>

<histogram name="Import.ImporterType" enum="ImporterType">
  <summary>The importer used for an import session.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError" enum="LevelDBIOErrorMethods">
  <summary>
    Methods where leveldb's Chromium environment has IO errors when being used
    by IndexedDB.
  </summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError." enum="PlatformFileError">
  <summary>
    PlatformFileErrors encountered by a single leveldb env method.
  </summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError.NewLogger" enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in NewLogger.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError.NewSequentialFile"
    enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in NewSequentialFile.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError.RandomAccessFile"
    enum="PlatformFileError">
  <obsolete>
    Deprecated 2013-04. As of m28 use
    LevelDBEnv.IDB.IOError.NewRandomAccessFile.
  </obsolete>
  <summary>File errors in leveldb IDBEnv's NewRandomAccessFile method.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError.WritableFileAppend"
    enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in WritableFileAppend.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.IOError.WritableFileFlush"
    enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in WritableFileFlush.</summary>
</histogram>

<histogram name="LevelDBEnv.IDB.TimeTo" units="milliseconds">
  <summary>
    Time IDB LevelDBEnv slept before successfully completing this operation. 0
    means success on the first try.
  </summary>
</histogram>

<histogram name="LevelDBEnv.IOError" enum="LevelDBIOErrorMethods">
  <summary>Methods where leveldb's Chromium environment has IO errors.</summary>
</histogram>

<histogram name="LevelDBEnv.IOError." enum="PlatformFileError">
  <summary>PlatformFileErrors encountered by a single leveldb method.</summary>
</histogram>

<histogram name="LevelDBEnv.IOError.NewLogger" enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in NewLogger.</summary>
</histogram>

<histogram name="LevelDBEnv.IOError.NewSequentialFile" enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in NewSequentialFile.</summary>
</histogram>

<histogram name="LevelDBEnv.IOError.RandomAccessFile" enum="PlatformFileError">
  <obsolete>
    Deprecated 2013-04. As of m28 use LevelDBEnv.IOError.NewRandomAccessFile.
  </obsolete>
  <summary>
    File errors in leveldb ChromiumEnv's NewRandomAccessFile method.
  </summary>
</histogram>

<histogram name="LevelDBEnv.IOError.WritableFileAppend" enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in WritableFileAppend.</summary>
</histogram>

<histogram name="LevelDBEnv.IOError.WritableFileFlush" enum="OSAgnosticErrno">
  <summary>Errno of errors encountered in WritableFileFlush.</summary>
</histogram>

<histogram name="LevelDBEnv.TimeTo" units="milliseconds">
  <summary>
    Time Non-IDB LevelDBEnv slept before successfully completing this operation.
    0 means success on the first try.
  </summary>
</histogram>

<histogram name="Navigation.MainFrameScheme" enum="NavigationScheme">
  <summary>The scheme of the URL for each main-frame navigation.</summary>
</histogram>

<histogram name="Net.AsyncResourceHandler_PendingDataCount">
  <summary>
    The count of unacknowledged ResourceMsg_DataReceived messages.  This message
    is sent once per chunk of data read from the network.
  </summary>
</histogram>

<histogram name="Net.AsyncResourceHandler_PendingDataCount_WhenFull">
  <summary>
    The count of unacknowledged ResourceMsg_DataReceived messages at the point
    where we pause network loading.
  </summary>
</histogram>

<histogram name="Net.AsyncResourceHandler_SharedIOBuffer_Alloc" units="bytes">
  <summary>The size of a SharedIOBuffer allocation.</summary>
</histogram>

<histogram name="Net.AsyncResourceHandler_SharedIOBuffer_Used" units="bytes">
  <summary>The number of bytes copied into a SharedIOBuffer.</summary>
</histogram>

<histogram name="Net.AsyncResourceHandler_SharedIOBuffer_UsedPercentage"
    units="percentage">
  <summary>
    The percentage of a SharedIOBuffer allocation that is actually used.
  </summary>
</histogram>

<histogram name="Net.AuthGenerateToken_basic" units="milliseconds">
  <summary>The time to generate a Basic HTTP authentication token.</summary>
</histogram>

<histogram name="Net.AuthGenerateToken_digest" units="milliseconds">
  <summary>The time to generate a Digest HTTP authentication token.</summary>
</histogram>

<histogram name="Net.AuthGenerateToken_negotiate" units="milliseconds">
  <summary>
    The time to generate a Negotiate (or SPNEGO) HTTP authentication token.
  </summary>
</histogram>

<histogram name="Net.AuthGenerateToken_ntlm" units="milliseconds">
  <summary>The time to generate an NTLM HTTP authentication token.</summary>
</histogram>

<histogram name="Net.CertificatePinSuccess" enum="BooleanSuccess">
  <obsolete>
    Renamed to Net.PublicKeyPinSuccess 28 Oct 2011.
  </obsolete>
  <summary>
    A validated certificate chain may be subject to additional
    &quot;pinning&quot; requirements on a per-domain basis. This records the
    fraction of successful matches between a certificate chain and a pin list.
  </summary>
</histogram>

<histogram name="Net.CoalescePotential" enum="CoalescePotentialPackets">
  <summary>
    The number of times we sent N packets, but could have sent N-1 packets.
  </summary>
</histogram>

<histogram name="Net.ComodoDNSExperimentFailureTime" units="milliseconds">
  <summary>
    The amount of time taken before we failed to  resolve the Comodo test DNS
    record. This is an experiment, run in conjuction with Comodo, to test the
    viability of a DNS based certificate revocation mechanism.
  </summary>
</histogram>

<histogram name="Net.ComodoDNSExperimentSuccessTime" units="milliseconds">
  <summary>
    The amount of time taken to successfully resolve the Comodo test DNS record.
    This is an experiment, run in conjuction with Comodo, to test the viability
    of a DNS based certificate revocation mechanism.
  </summary>
</histogram>

<histogram name="Net.Compress.NoProxy.BytesAfterCompression" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was compressed.
    Only includes requests which did not go through an explicit proxy and did
    not go over SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.NoProxy.BytesBeforeCompression" units="bytes">
  <summary>
    The compressed number of bytes received per request that was compressed.
    Only includes requests which did not go through an explicit proxy and did
    not go over SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.NoProxy.ShouldHaveBeenCompressed" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was not
    compressed but appears to have been compressible.  Only includes requests
    which did not go through an explicit proxy and did not go over SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.Proxy.BytesAfterCompression" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was compressed.
    Only includes requests sent through a proxy without SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.Proxy.BytesBeforeCompression" units="bytes">
  <summary>
    The compressed number of bytes received per request that was compressed.
    Only includes requests sent through a proxy without SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.Proxy.ShouldHaveBeenCompressed" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was not
    compressed but appears to have been compressible.  Only includes requests
    sent through a proxy without SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.SSL.BytesAfterCompression" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was compressed.
    Only includes requests sent over SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.SSL.BytesBeforeCompression" units="bytes">
  <summary>
    The compressed number of bytes received per request that was compressed.
    Only includes requests sent over SSL.
  </summary>
</histogram>

<histogram name="Net.Compress.SSL.ShouldHaveBeenCompressed" units="bytes">
  <summary>
    The uncompressed number of bytes received per request that was not
    compressed but appears to have been compressible.  Only includes requests
    sent over SSL.
  </summary>
</histogram>

<histogram name="Net.ConnectionTypeCount" enum="ConnectionType">
  <obsolete>
    The count was inaccurate (it counted transactions rather than connections)
  </obsolete>
  <summary>
    Each bucket is the number of connections of a particular type that the user
    has had during the session.
  </summary>
</histogram>

<histogram name="Net.ConnectionTypeCount2" enum="ConnectionType">
  <obsolete>
    Renamed to match HadConnectionType.
  </obsolete>
  <summary>
    Each bucket is the number of successful connections of a particular type
    that the user has had during the session.
  </summary>
</histogram>

<histogram name="Net.ConnectionTypeCount3" enum="ConnectionType">
  <summary>
    Each bucket is the number of successful connections of a particular type
    that the user has had during the session.
  </summary>
</histogram>

<histogram name="Net.ConnectionTypeFailCount2" enum="ConnectionType">
  <obsolete>
    No longer collected.
  </obsolete>
  <summary>
    Each bucket is the number of failed connections of a particular type that
    the user has had during the session.
  </summary>
</histogram>

<histogram name="Net.ConnectionUsedSSLv3Fallback">
  <obsolete>
    Replaced by Net.ConnectionUsedSSLVersionFallback in Chrome 21.
  </obsolete>
  <summary>
    True if the HTTP request was to a server which requires SSLv3 fallback
  </summary>
</histogram>

<histogram name="Net.ConnectionUsedSSLVersionFallback"
    enum="FallbackSSLVersion">
  <summary>
    Nonzero if the HTTP request was to a server which requires SSL version
    fallback.  The value indicates the SSL version the request fell back on.
  </summary>
</histogram>

<histogram name="net.CookieBackingStoreUpdateResults"
    enum="BackingStoreResults">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    Whether or not updates to the backing store succeeded or failed, recorded
    every update.
  </summary>
</histogram>

<histogram name="net.CookieBetweenAccessIntervalMinutes" units="minutes">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>Intervals between access time updates for each cookie.</summary>
</histogram>

<histogram name="net.CookieCount">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    Number of cookies in the store (recorded every 10 minutes of active browsing
    time)
  </summary>
</histogram>

<histogram name="net.CookieDeletionCause" enum="CookieDeletionCause">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    For each cookie removed from the store, the reason it was removed.
  </summary>
</histogram>

<histogram name="net.CookieDomainCount">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    For each domain, number of cookies in that domain (recorded every 10 minutes
    of active browsing time).
  </summary>
</histogram>

<histogram name="net.CookieDomainPerEtldp1Count">
  <summary>
    For every top level domain, number of subdomains in that top level domain
    (recorded every 10 minutes of active browsing time).
  </summary>
</histogram>

<histogram name="net.CookieEtldp1Count">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    For every top level domain, number of cookies in that domain (recorded every
    10 minutes of active browsing time).
  </summary>
</histogram>

<histogram name="net.CookieEvictedLastAccessMinutes" units="minutes">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    For each evicted (not expired) cookie, the amount of time since it was last
    used
  </summary>
</histogram>

<histogram name="net.CookieExpirationDurationMinutes" units="minutes">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>Number of minutes until cookie expires when set.</summary>
</histogram>

<histogram name="net.CookieTimeGet">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    The amount of time (ms) to get cookies for each URL request.
  </summary>
</histogram>

<histogram name="net.CookieTimeLoad">
  <obsolete>
    Initial typo; only here to get results from builds before r59117.  See
    &quot;Cookie.&quot; group.
  </obsolete>
  <summary>
    The amount of time (ms) to load the persistent cookie store at browser
    start.
  </summary>
</histogram>

<histogram name="Net.CountOfAlternateProtocolServers">
  <summary>
    The total number of severs to which alternative protocol was used. This
    counts the number of servers persisted to prefs file.
  </summary>
</histogram>

<histogram name="Net.CountOfPipelineCapableServers">
  <summary>
    The total number of severs that support HTTP pipelining. This counts the
    number of servers persisted to prefs file.
  </summary>
</histogram>

<histogram name="Net.CountOfSpdyServers">
  <summary>
    The total number of SPDY server names persisted to prefs file.
  </summary>
</histogram>

<histogram name="Net.CountOfSpdySettings">
  <summary>
    The total number of SPDY Settings properties persisted to prefs file.
  </summary>
</histogram>

<histogram name="Net.CRLRequestFailedTimeMs" units="milliseconds">
  <summary>
    When validating an HTTPS certificate we may have to block to fetch one or
    more revocation lists. This measures the amount of time that failures to get
    CRL information take.
  </summary>
</histogram>

<histogram name="Net.CRLRequestSuccess" enum="BooleanSuccess">
  <summary>
    When validating an HTTPS certificate we may have to block to fetch one or
    more revocation lists. This records the fraction of successful requests.
  </summary>
</histogram>

<histogram name="Net.CRLRequestTimeMs" units="milliseconds">
  <summary>
    When validating an HTTPS certificate we may have to block to fetch one or
    more revocation lists. This measures the amount of time that each fetch
    takes.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadCancelTime" units="milliseconds">
  <summary>
    Measures time from initiating a fetch of a PAC file from DHCP WPAD to
    cancellation of the fetch. For a given fetch, only one of the cancellation
    or completion histograms will be added to.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadCompletionTime" units="milliseconds">
  <summary>
    Measures time from initiating a fetch of a PAC file from DHCP WPAD to
    completion of the fetch. For a given fetch, only one of the cancellation or
    completion histograms will be added to.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadFetchError" enum="NetErrorCodes">
  <summary>
    Tracks the net error codes received when the DHCP WPAD fetch fails to
    retrieve a PAC file (including PAC_NOT_IN_DHCP, which is not really an error
    but an indication that a PAC URL was not configured in DHCP).
  </summary>
</histogram>

<histogram name="Net.DhcpWpadGetAdaptersAddressesError"
    enum="ErrorCodesGetAdaptersAddresses">
  <summary>
    Tracks the frequency of each of the different known error codes of calling
    the GetAdaptersAddresses Win32 API.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadGetAdaptersAddressesTime" units="milliseconds">
  <summary>
    Measures the time taken to call the GetAdaptersAddresses Win32 API, to
    validate our understanding that it should complete quickly enough to call
    synchronously from the network thread.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadNumAdaptersAtWaitTimer">
  <summary>
    Total number of adapters enabled for DHCP as seen when the wait timer in the
    DHCP WPAD code hits. This timer fires after a timeout from when we get some
    information from the first adapter to finish.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadNumPendingAdaptersAtWaitTimer">
  <summary>
    Number of adapters enabled for DHCP that we have not completed retrieving
    information for, as seen when the wait timer in the DHCP WPAD code hits.
    This timer fires after a timeout from when we get some information from the
    first adapter to finish.
  </summary>
</histogram>

<histogram name="Net.DhcpWpadUnhandledDhcpError">
  <summary>
    Counts the number of errors from the DhcpRequestParams API that we do not
    have specific handling for, so that we can see if there is an abnormally
    high rate.
  </summary>
</histogram>

<histogram name="Net.Dns_Resolution_And_TCP_Connection_Latency">
  <obsolete>
    Deprecated- see Net.Dns_Resolution_And_TCP_Connection_Latency2
  </obsolete>
</histogram>

<histogram name="Net.DNS_Resolution_And_TCP_Connection_Latency2"
    units="milliseconds">
  <summary>
    The time measured before starting DNS lookup until after the connection is
    complete.
  </summary>
</histogram>

<histogram name="Net.Dns_Resolution_And_TCP_Connection_Latency2"
    units="milliseconds">
  <summary>
    The time measured before starting DNS lookup until after the connection is
    complete.
  </summary>
</histogram>

<histogram name="Net.DoubleGetExperiment_InitialResponseMethod"
    enum="DoubleGetExperimentMethods">
  <summary>
    The number of HTTP request responses with MS Office Docs MIME types. The
    responses are classified based on their method type and cacheability (POST,
    cacheable GET and non-cacheable GET). The histogram is used in Double GET
    Experiment, where successful non-cacheable GET requests are intercepted
    after initial response and repeated in order to determine how much reissuing
    non-cacheable GET requests influences their error rate. The histogram tracks
    only initial requests (not the repeated ones).
  </summary>
</histogram>

<histogram name="Net.DoubleGetExperiment_ResponseCode">
  <summary>
    The response codes encountered for GET request repeated in Double GET
    Experiment. In the experiment successful non-cacheable GET requests are
    intercepted after initial response and repeated. The goal of the experiment
    is to measure how much reissuing non-cacheable GET requests influences their
    error rate.
  </summary>
</histogram>

<histogram name="Net.DownloadBandwidth">
  <summary>
    Kbps on download streams exceeding 25KB.  Measures from the beginning of the
    first byte received until the end of flowing data.
  </summary>
</histogram>

<histogram name="Net.ErrorCodesForMainFrame" enum="NetErrorCodes">
  <obsolete>
    Deprecated as of 2011/5/24, replaced by Net.ErrorCodesForMainFrame2, which
    measures the same data but uses a different bucket structure (adds guard
    buckets).
  </obsolete>
  <summary>
    Positive net error code that a page failed with. Note that this only counts
    the errors in &quot;main frames&quot;, so it is a measure of the error pages
    that users actually see (it does not for example count the error codes for
    subresoures on a page).
  </summary>
</histogram>

<histogram name="Net.ErrorCodesForMainFrame2" enum="NetErrorCodes">
  <obsolete>
    Deprecated as of 2012/5/16, replaced by Net.ErrorCodesForMainFrame3, which
    measures the same data but includes ERR_ABORTED and OK.
  </obsolete>
  <summary>
    Positive net error code that a page failed with. Note that this only counts
    the errors in &quot;main frames&quot;, so it is a measure of the error pages
    that users actually see (it does not for example count the error codes for
    subresoures on a page).
  </summary>
</histogram>

<histogram name="Net.ErrorCodesForMainFrame3" enum="NetErrorCodes">
  <summary>
    Positive net error codes that requests for pages end with, including net::OK
    and net::ERR_ABORTED.  This only counts loads in &quot;main frames&quot; (it
    does not for example count the error codes for subresoures on a page).
  </summary>
</histogram>

<histogram name="Net.ErrorCodesForSubresources" enum="NetErrorCodes">
  <obsolete>
    Deprecated as of 2012/5/16, replaced by Net.ErrorCodesForSubresources2,
    which measures the same data but includes ERR_ABORT and OK.
  </obsolete>
  <summary>
    Positive net error code that a page failed with. Note that this only counts
    the errors in &quot;subresources&quot;.
  </summary>
</histogram>

<histogram name="Net.ErrorCodesForSubresources2" enum="NetErrorCodes">
  <summary>
    Net error codes that requests for &quot;subresources&quot; end with,
    including net::OK and net::ERR_ABORTED.
  </summary>
</histogram>

<histogram name="Net.FileError_Flush">
  <summary>
    System error code that a file Flush failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_GetSize">
  <summary>
    System error code that a file GetSize failed with.  The code is OS
    dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_Open">
  <summary>
    System error code that a file Open failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_Read">
  <summary>
    System error code that a file Read failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_Seek">
  <summary>
    System error code that a file Seek failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_SetEof">
  <summary>
    System error code that a file SetEof failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileError_Write">
  <summary>
    System error code that a file Write failed with.  The code is OS dependent,
    so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_Flush">
  <summary>
    System error code range that a file Flush failed with.  Any value other than
    0 indicates that we have received errors in a range outside of the one in
    which we recorded the specific errors in Net.FileError_Flush.  The code is
    OS dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_GetSize">
  <summary>
    System error code range that a file GetSize failed with.  Any value other
    than 0 indicates that we have received errors in a range outside of the one
    in which we recorded the specific errors in Net.FileError_GetSize.  The code
    is OS dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_Open">
  <summary>
    System error code range that a file Open failed with.  Any value other than
    0 indicates that we have received errors in a range outside of the one in
    which we recorded the specific errors in Net.FileError_Open.  The code is OS
    dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_Read">
  <summary>
    System error code range that a file Read failed with.  Any value other than
    0 indicates that we have received errors in a range outside of the one in
    which we recorded the specific errors in Net.FileError_Read.  The code is OS
    dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_Seek">
  <summary>
    System error code range that a file Seek failed with.  Any value other than
    0 indicates that we have received errors in a range outside of the one in
    which we recorded the specific errors in Net.FileError_Seek.  The code is OS
    dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_SetEof">
  <summary>
    System error code range that a file SetEof failed with.  Any value other
    than 0 indicates that we have received errors in a range outside of the one
    in which we recorded the specific errors in Net.FileError_SetEof.  The code
    is OS dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FileErrorRange_Write">
  <summary>
    System error code range that a file Write failed with.  Any value other than
    0 indicates that we have received errors in a range outside of the one in
    which we recorded the specific errors in Net.FileError_Write.  The code is
    OS dependent, so when looking at the histogram don't mix OSes.
  </summary>
</histogram>

<histogram name="Net.FtpDataConnectionErrorCount" enum="FtpDataConnectionError">
  <summary>The number of times each FTP Error was observed.</summary>
</histogram>

<histogram name="Net.FtpDataConnectionErrorHappened"
    enum="FtpDataConnectionError">
  <summary>
    The number of Chrome sessions which encountered the indicates FTP Error.
    This prevents allowing a user that retried a connection many times (getting
    an error each time) from biasing the tallies.
  </summary>
</histogram>

<histogram name="Net.FtpServerTypeCount" enum="FtpServerType">
  <summary>
    Each bucket is the number of FTP server types the user has encountered
    during the session.
  </summary>
</histogram>

<histogram name="Net.GetProxyForUrl_FAIL" units="milliseconds">
  <summary>
    The time spent waiting for WinHttpGetProxyForUrl to return with error.
  </summary>
</histogram>

<histogram name="Net.GetProxyForUrl_OK" units="milliseconds">
  <summary>
    The time spent waiting for WinHttpGetProxyForUrl to return with success.
  </summary>
</histogram>

<histogram name="Net.GoogleConnectionUsedSSLVersionFallback"
    enum="FallbackSSLVersion">
  <summary>
    Nonzero if the HTTP request was to a Google server which required SSL
    version fallback. The value indicates the SSL version the request fell back
    on. Since Google servers support TLS 1.2, any fallback is an indication of
    network middleware problems.
  </summary>
</histogram>

<histogram name="Net.HadConnectionType" enum="ConnectionType">
  <obsolete>
    The count was inaccurate (it counted transactions rather than connections).
  </obsolete>
  <summary>
    Each bucket is a boolean (0 or 1) indicating whether the user has had a
    connection of that type during the session.
  </summary>
</histogram>

<histogram name="Net.HadConnectionType2" enum="ConnectionType">
  <obsolete>
    This statistic measures successful and failed connections, the new one only
    measures successful ones.
  </obsolete>
  <summary>
    Each bucket is a boolean (0 or 1) indicating whether the user has had a
    connection of that type during the session.
  </summary>
</histogram>

<histogram name="Net.HadConnectionType3" enum="ConnectionType">
  <summary>
    Each bucket is a boolean (0 or 1) indicating whether the user has had a
    successful connection of that type during the session.
  </summary>
</histogram>

<histogram name="Net.HadFtpServerType" enum="FtpServerType">
  <summary>
    Each bucket is a boolean (0 or 1) indicating whether the user has had a
    connection with an FTP server of that type during the session.
  </summary>
</histogram>

<histogram name="Net.HttpAuthCount" enum="HttpAuthCount">
  <summary>
    Per-authentication-scheme counts of authentication attempts and rejections.
  </summary>
</histogram>

<histogram name="Net.HttpAuthResource" enum="HttpAuthResource">
  <summary>
    Count of authentication requests for top level pages vs. sub-resources, such
    as images or iframes.
  </summary>
</histogram>

<histogram name="Net.HttpAuthTarget" enum="HttpAuthTarget">
  <summary>
    Per-authentication-scheme counts of authentication targets, such as secure
    servers or proxies.
  </summary>
</histogram>

<histogram name="Net.HttpConnectionLatency" units="milliseconds">
  <summary>
    Time between the HttpNetworkTransaction requesting a connection and the time
    it connected.
  </summary>
</histogram>

<histogram name="Net.HttpContentLength" units="bytes">
  <summary>
    Size of the response body. This is the actual number of bytes received,
    which usually agrees with but is not necessarily the same as the size
    specified by the Content-Length header.
  </summary>
</histogram>

<histogram name="Net.HttpContentLengthDifference" units="bytes">
  <summary>
    The difference between the size specified in the X-Original-Content-Length
    header and the size of teh response body. This is zero if the
    X-Original-Content-Length header is not present in the response.
  </summary>
</histogram>

<histogram name="Net.HttpContentLengthDifferenceWithValidOCL" units="bytes">
  <summary>
    The difference between the size specified in the X-Original-Content-Length
    header and the size of the response body. Only includes resources that have
    the X-Original-Content-Length header.
  </summary>
</histogram>

<histogram name="Net.HttpContentLengthWithValidOCL" units="bytes">
  <summary>
    Size of the response body. Only includes resources that have the
    X-Original-Content-Length header.
  </summary>
</histogram>

<histogram name="Net.HttpJob.TotalTime" units="milliseconds">
  <summary>
    Time it takes to complete an HttpJob, from starting the transaction until we
    are done reading.
  </summary>
</histogram>

<histogram name="Net.HttpJob.TotalTimeCached" units="milliseconds">
  <summary>
    Time it takes to complete an HttpJob, from starting the transaction until we
    are done reading, for jobs served from the cache.
  </summary>
</histogram>

<histogram name="Net.HttpJob.TotalTimeCancel" units="milliseconds">
  <summary>
    Time it takes to complete an HttpJob, from starting the transaction until
    the job is killed. Note that we didn't detect the end of the data for this
    job.
  </summary>
</histogram>

<histogram name="Net.HttpJob.TotalTimeNotCached" units="milliseconds">
  <summary>
    Time it takes to complete an HttpJob, from starting the transaction until we
    are done reading, for jobs not served from the cache.
  </summary>
</histogram>

<histogram name="Net.HttpJob.TotalTimeSuccess" units="milliseconds">
  <summary>
    Time it takes to complete an HttpJob, from starting the transaction until we
    are done reading, for jobs when we read until no more data is available.
  </summary>
</histogram>

<histogram name="Net.HttpOriginalContentLength" units="bytes">
  <summary>
    Size specified in the X-Original-Content-Length header. If this header is
    not present in the response, the size of the response body is used.
  </summary>
</histogram>

<histogram name="Net.HttpOriginalContentLengthWithValidOCL" units="bytes">
  <summary>
    Size specified in the X-Original-Content-Length header. Only includes
    resources that have the X-Original-Content-Length header.
  </summary>
</histogram>

<histogram name="Net.HttpProxySocketRequestTime" units="milliseconds">
  <summary>Time it takes to request a new (unused) HTTP proxy socket.</summary>
</histogram>

<histogram name="Net.HttpResponseCode">
  <summary>The count of HTTP Response codes encountered.</summary>
</histogram>

<histogram name="Net.HttpResponseCode_Nxx_MainFrame">
  <summary>
    The count of HTTP Response codes encountered, in response to MAIN_FRAME
    requests only; saving only the hundreds digit, e.g. 100-&gt;1, 300-&gt;3.
  </summary>
</histogram>

<histogram name="Net.HttpSocketType" enum="HttpSocketType">
  <summary>
    The counts of the type of sockets (all HTTP sockets, regardless of any proxy
    used) used for HTTP[s].
  </summary>
</histogram>

<histogram name="Net.HttpTimeToFirstByte" units="milliseconds">
  <summary>
    Time from when an HTTP request is issued to when the first byte is
    processed.
  </summary>
</histogram>

<histogram name="Net.IOError_SocketReuseType" enum="HttpSocketType">
  <summary>
    The count of handleable socket errors (connection abort/close/reset) per
    socket reuse type.
  </summary>
</histogram>

<histogram name="Net.IOError_SocketReuseType_disable_late_binding"
    enum="HttpSocketType">
  <obsolete>
    Late bindings are on by default now.
  </obsolete>
  <summary>
    The count of handleable socket errors (connection abort/close/reset) per
    socket reuse type.  Socket late binding is disabled.
  </summary>
</histogram>

<histogram name="Net.IOError_SocketReuseType_enable_late_binding"
    enum="HttpSocketType">
  <obsolete>
    Late bindings are on by default now.
  </obsolete>
  <summary>
    The count of handleable socket errors (connection abort/close/reset) per
    socket reuse type.  Socket late binding is enabled.
  </summary>
</histogram>

<histogram name="Net.IPv6Status" enum="IPV6ProbeResult">
  <summary>The probe results when a test for IPv6 support is done.</summary>
</histogram>

<histogram name="Net.IPv6Status_retest" enum="IPV6ProbeResult">
  <summary>
    The probe results when a test for IPv6 support is done, after a network
    change event.
  </summary>
</histogram>

<histogram name="Net.MTPR_GetProxyForUrl_Thread_Wait_Time" units="milliseconds">
  <summary>
    The time that a (non-cancelled) proxy resolution request was stalled waiting
    for an execution thread, for MultiThreadedProxyResolver.
  </summary>
</histogram>

<histogram name="Net.MTPR_GetProxyForUrl_Time" units="milliseconds">
  <summary>
    The total time that it took for a (non-cancelled) proxy resolution request
    to complete, for MultiThreadedProxyResolver.
  </summary>
</histogram>

<histogram name="Net.NetworkErrorsRecovered.MainFrame" enum="NetErrorCodes">
  <summary>
    How often automatically retrying to download the main frame of a page in
    response to specific HTTP network errors succeeds.
  </summary>
</histogram>

<histogram name="Net.NetworkErrorsRecovered.Subresource" enum="NetErrorCodes">
  <summary>
    How often automatically retrying to download a subresource in response to
    specific HTTP network errors succeeds.
  </summary>
</histogram>

<histogram name="Net.NetworkErrorsUnrecovered.MainFrame" enum="NetErrorCodes">
  <summary>
    How often automatically retrying to download the main frame of a page in
    response to specific HTTP network errors returns another network error.
    Histogram includes only the error code that triggered the retry.
  </summary>
</histogram>

<histogram name="Net.NetworkErrorsUnrecovered.Subresource" enum="NetErrorCodes">
  <summary>
    How often automatically retrying to download a subresource in response to
    specific HTTP network errors returns another network error.  Histogram
    includes only the error code that triggered the retry.
  </summary>
</histogram>

<histogram name="Net.NotifyAddrChangeFailures">
  <summary>
    On Windows, NetworkChangeNotifierWin calls NotifyAddrChange, which can fail
    for unknown reasons. This records the number of times it fails in a row
    before a successful call. If it never succeeds, or takes over 100 tries, a
    value of 100 is recorded. See http://crbug.com/69198
  </summary>
</histogram>

<histogram name="Net.NumDuplicateCookiesInDb">
  <summary>
    The number of duplicate cookies that were present in the cookie store during
    startup.
  </summary>
</histogram>

<histogram name="Net.OCSPRequestFailedTimeMs" units="milliseconds">
  <summary>
    When validating an HTTPS certificate we may have to make one or more HTTP
    fetches to OCSP responders in order to get revocation information. This
    measures the amount of time that failures to get OCSP information take.
  </summary>
</histogram>

<histogram name="Net.OCSPRequestSuccess" enum="BooleanSuccess">
  <summary>
    When validating an HTTPS certificate we may have to make one or more HTTP
    fetches to OCSP responders in order to get revocation information. This
    records the fraction of successful requests.
  </summary>
</histogram>

<histogram name="Net.OCSPRequestTimeMs" units="milliseconds">
  <summary>
    When validating an HTTPS certificate we may have to make one or more HTTP
    fetches to OCSP responders in order to get revocation information. This
    measures the amount of time that each of those requests takes.
  </summary>
</histogram>

<histogram name="Net.OSErrorsForGetAddrinfo" enum="ErrorCodesGetaddrinfo_All">
  <summary>
    Positive error code that was returned by the system library
    &quot;getaddrinfo()&quot;. This error code is platform specific, so when
    there is a Windows/Linux conflict, both decodings are shown.
  </summary>
</histogram>

<histogram name="Net.OSErrorsForGetAddrinfo_Linux"
    enum="ErrorCodesGetaddrinfo_Linux">
  <summary>
    Positive error code that was returned by the system library
    &quot;getaddrinfo()&quot;.
  </summary>
</histogram>

<histogram name="Net.OSErrorsForGetAddrinfo_Mac"
    enum="ErrorCodesGetaddrinfo_Mac">
  <summary>
    Positive error code that was returned by the system library
    &quot;getaddrinfo()&quot;.
  </summary>
</histogram>

<histogram name="Net.OSErrorsForGetAddrinfo_Win"
    enum="ErrorCodesGetaddrinfo_Win">
  <summary>
    Positive error code that was returned by the system library
    &quot;getaddrinfo()&quot;.
  </summary>
</histogram>

<histogram name="Net.PreconnectMotivation" enum="PreconnectMotivation">
  <summary>
    When a preconnection is made, indicate what the motivation was.
  </summary>
  <details>
    Currently, the most common (only?) motivations are SELF_REFERAL,
    LEARNED_REFERAL and OMNIBOX. The SELF_REFERAL indicates that we made sure a
    second connection was available for a resource that either was never before
    seen, or has historically had no subresources.  The LEARNED_REFERAL
    indicates that we &quot;learned&quot; that a subresource was commonly
    needed, and that motivated the TCP/IP preconnect. The OMNIBOX motivation
    happens when a search is being suggested, and we preconnect to the search
    provider. (WARNING: Prior to version 7.517.*, enums 7, 8, and 9 may be
    confused, as EARLY_LOAD_MOTIVATED was inserted new 6 value.)
  </details>
</histogram>

<histogram name="Net.PreconnectProxyStatus" enum="ProxyStatus">
  <summary>
    Indicate whether there was a proxy to preclude preconnection.
  </summary>
</histogram>

<histogram name="Net.PreconnectSubresourceEval"
    enum="PreconnectSubresourceEval">
  <summary>
    What did we decide to do about a predicted resource, based on the historical
    expected number of connection that this subresource will require.
  </summary>
  <details>
    This is basically the current thresholding of the SubresourceExpectation,
    relative to current static thresholds, and taking into account whether
    preconnection is enabled (i.e., if preconnection is disabled, we'll never
    decide to preconnect).
  </details>
</histogram>

<histogram name="Net.PreconnectSubresourceExpectation">
  <summary>
    The expected number of connections, times 100, that we'll make to a given
    subresource, based on learned history.
  </summary>
  <details>
    By comparing this to thresholds, we decide if we will preconnect,
    preresolve, or do nothing. This histogram can be used to select those static
    thresholds.
  </details>
</histogram>

<histogram name="Net.PreconnectUtilization" enum="NetPreconnectUtilization">
  <obsolete>
    Sourced data corrected, and replaced by NetPreconnectUtilization2
  </obsolete>
  <summary>
    Indicate final utilization for each attempted socket connection.
  </summary>
  <details>
    We also include stats for non-speculative sockets. Some socket connections
    may never connect, and others may never be used (as the user may abort
    before then).
  </details>
</histogram>

<histogram name="Net.PreconnectUtilization2" enum="NetPreconnectUtilization">
  <summary>
    Indicate final utilization for each attempted socket connection.
  </summary>
  <details>
    We also include stats for non-speculative sockets. Some socket connections
    may never connect, and others may never be used (as the user may abort
    before then).
  </details>
</histogram>

<histogram name="Net.Priority_High_Latency" units="milliseconds">
  <obsolete>
    Replaced by Net.Priority_High_Latency_b.
  </obsolete>
  <summary>
    Time from the start of the http transaction until the first byte of the
    response for high priority (currently frame and subframe) requests.  Only
    times under 10 minutes are recorded.
  </summary>
</histogram>

<histogram name="Net.Priority_High_Latency_b" units="milliseconds">
  <summary>
    Time from the start of the http transaction until the first byte of the
    response for high priority (currently frame and subframe) requests.
  </summary>
</histogram>

<histogram name="Net.Priority_Low_Latency" units="milliseconds">
  <obsolete>
    Replaced by Net.Priority_Low_Latency_b.
  </obsolete>
  <summary>
    Time from the start of the http transaction until the first byte of the
    response for low priority (non-frame/subframe) requests.   Only times under
    10 minutes are recorded.
  </summary>
</histogram>

<histogram name="Net.Priority_Low_Latency_b" units="milliseconds">
  <summary>
    Time from the start of the http transaction until the first byte of the
    response for low priority (non-frame/subframe) requests.
  </summary>
</histogram>

<histogram name="Net.ProxyPollConfigurationTime">
  <summary>
    The time in milliseconds spent fetch the system proxy configuration, when
    polling it for changes.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.AbandonedExecutionTotalTime"
    units="milliseconds">
  <summary>
    The total amount of time that was spent executing the proxy script during
    &quot;tracing&quot; runs (executions of the script which discovered a new
    DNS dependency and were subsequently abandoned).
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.AbandonedExecutionTotalTime"
    units="milliseconds">
  <summary>
    The total amount of time that was spent executing the proxy script during
    &quot;tracing&quot; runs (executions of the script which discovered a new
    DNS dependency and were subsequently abandoned).
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.DnsWaitTotalTime"
    units="milliseconds">
  <summary>
    The total amount of time that was spent in the non-blocking DNS bindings
    while executing PAC scripts. This includes the times for abandoned
    executions.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.ExecutionTime"
    units="milliseconds">
  <summary>
    The amount of time inside of V8 that the proxy script spent executing for
    the final pass. This includes the time spent in the javascript bindings.
    This does not include the time spent in abandoned execution passes.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.NumAlerts">
  <summary>
    The number of times that alert() was called in the final execution of the
    script.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.NumErrors">
  <summary>
    The number of errors that were seen in the final execution of the script.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.NumRestarts">
  <summary>
    The number of times that the PAC script execution was restarted.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.TotalTime"
    units="milliseconds">
  <summary>
    The total time that the proxy resolution took. This includes all the time
    spent waiting for DNS, PAC script execution, and restarts.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.TotalTimeDNS"
    units="milliseconds">
  <summary>
    The total time that proxy resolution spent waiting for DNS. This also
    includes any queuing delays on the origin thread waiting for the DNS result
    to be processed.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.BlockingDNSMode.UniqueDNS">
  <summary>
    The number of unique DNS hostnames that the PAC script tried to resolve. The
    *Ex() versions of the bindings count separately.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.DnsWaitTotalTime" units="milliseconds">
  <summary>
    The total amount of time that was spent in the non-blocking DNS bindings
    while executing PAC scripts. This includes the times for abandoned
    executions.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.ExecutionTime" units="milliseconds">
  <summary>
    The amount of time inside of V8 that the proxy script spent executing for
    the final pass. This includes the time spent in the javascript bindings
    (which is probably dominated by Net.ProxyResolver.DnsWaitTotalTime). This
    does not include the time spent in abandoned execution passes.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.NumAlerts">
  <summary>
    The number of times that alert() was called in the final execution of the
    script.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.NumErrors">
  <summary>
    The number of errors that were seen in the final execution of the script.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.NumRestarts">
  <summary>
    The number of times that the PAC script execution was restarted.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.OriginThreadLatency" units="milliseconds">
  <summary>
    The amount of time it took upon completion to run the final task posted back
    to the IO thread.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.TotalTime" units="milliseconds">
  <summary>
    The total time that the proxy resolution took. This includes all the time
    spent waiting for DNS, PAC script execution, and restarts.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.TotalTimeDNS" units="milliseconds">
  <summary>
    The total time that proxy resolution spent waiting for DNS. This also
    includes any queuing delays on the origin thread waiting for the DNS result
    to be processed.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.TotalTimeWorkerThread" units="milliseconds">
  <summary>
    The total time that the proxy resolution took, not including the post back
    to the origin thread. This includes all the time spent waiting for DNS, PAC
    script execution, and restarts.
  </summary>
</histogram>

<histogram name="Net.ProxyResolver.UniqueDNS">
  <summary>
    The number of unique DNS hostnames that the PAC script tried to resolve. The
    *Ex() versions of the bindings count separately.
  </summary>
</histogram>

<histogram name="Net.PublicKeyPinFailureDomain" enum="PublicKeyPinFailedDomain">
  <summary>
    Second-level domains for which we have observed public key pinning failures.
  </summary>
</histogram>

<histogram name="Net.PublicKeyPinSuccess" enum="BooleanSuccess">
  <summary>
    A validated certificate chain may be subject to additional
    &quot;pinning&quot; requirements on a per-domain basis. This records the
    fraction of successful matches between a certificate chain and a pin list.
  </summary>
</histogram>

<histogram name="Net.RenegotiationExtensionSupported">
  <summary>
    True if the HTTP request was sent to a server which supports the TLS
    renegotiation extension.
  </summary>
</histogram>

<histogram name="Net.SocketIdleTimeBeforeNextUse_ReusedSocket">
  <summary>The time an already used socket sat idle before being used.</summary>
</histogram>

<histogram name="Net.SocketIdleTimeBeforeNextUse_UnusedSocket">
  <summary>
    The time an unused socket (all HTTP sockets, regardless of any proxy used)
    sat idle before being used.
  </summary>
</histogram>

<histogram name="Net.SocketIdleTimeOnIOError2_ReusedSocket">
  <summary>
    The time a previously used socket sat idle before encountering a recoverable
    socket IO error (connection abort/reset/close).
  </summary>
</histogram>

<histogram name="Net.SocketIdleTimeOnIOError2_UnusedSocket">
  <summary>
    The time an unused socket sat idle before encountering a recoverable socket
    IO error (connection abort/reset/close).
  </summary>
</histogram>

<histogram name="Net.SocketInitErrorCodes" enum="NetErrorCodes">
  <summary>
    Net error codes that socket initializations end with, including net::OK and
    net::ERR_ABORTED.
  </summary>
</histogram>

<histogram name="Net.SocketRequestTime">
  <summary>
    Time in milliseconds from initial RequestSocket() call until successfully
    acquiring a connected socket.
  </summary>
</histogram>

<histogram name="Net.SocketStream.ConnectionEstablish" units="milliseconds">
  <summary>The time from the connection start to connection establish.</summary>
</histogram>

<histogram name="Net.SocketStream.ConnectionLatency" units="milliseconds">
  <summary>The time waiting to be ready to start connecting.</summary>
</histogram>

<histogram name="Net.SocketStream.ConnectionType"
    enum="SocketStreamConnectionType">
  <summary>
    Each bucket is the number of connection type of socket stream.
  </summary>
</histogram>

<histogram name="Net.SocketStream.Duration" units="milliseconds">
  <summary>The time a socket stream was open.</summary>
</histogram>

<histogram name="Net.SocketStream.ProtocolType" enum="SocketStreamProtocolType">
  <summary>
    Each bucket is the number of protocol type on socket stream.
  </summary>
</histogram>

<histogram name="Net.SocketStream.ReceivedBytes" units="bytes">
  <summary>Number of bytes on a socket stream.</summary>
</histogram>

<histogram name="Net.SocketStream.ReceivedCounts">
  <summary>Number of reads on a socket stream.</summary>
</histogram>

<histogram name="Net.SocketStream.SentBytes" units="bytes">
  <summary>Number of bytes on a socket stream.</summary>
</histogram>

<histogram name="Net.SocketStream.SentCounts">
  <summary>Number of Write on a socket stream.</summary>
</histogram>

<histogram name="Net.SocketType" enum="HttpSocketType">
  <summary>
    The counts of the type of sockets returned by the socket pools.
  </summary>
</histogram>

<histogram name="Net.SOCKSSocketIdleTimeBeforeNextUse_ReusedSocket">
  <obsolete>
    see SocketIdleTimeBeforeNextUse_ReusedSocket_SOCK
  </obsolete>
  <summary>
    The time an already used SOCKS socket sat idle before being used.
  </summary>
</histogram>

<histogram name="Net.SOCKSSocketIdleTimeBeforeNextUse_UnusedSocket">
  <obsolete>
    see SocketIdleTimeBeforeNextUse_UnusedSocket_SOCK
  </obsolete>
  <summary>The time an unused SOCKS socket sat idle before being used.</summary>
</histogram>

<histogram name="Net.SOCKSSocketRequestTime" units="milliseconds">
  <obsolete>
    see SocketRequestTime_SOCK
  </obsolete>
  <summary>
    Time from initial SOCKSClientSocketPool::RequestSocket() call until
    successfully acquiring a connected SOCKS socket.
  </summary>
</histogram>

<histogram name="Net.SocksSocketRequestTime">
  <summary>Time it takes to request a new (unused) SOCKS proxy socket.</summary>
</histogram>

<histogram name="Net.SOCKSSocketType" enum="HttpSocketType">
  <obsolete>
    see SocketType_SOCK
  </obsolete>
  <summary>
    The counts of the type of sockets returned by the SOCKS pool.
  </summary>
</histogram>

<histogram name="Net.SpdyConnectionLatency" units="milliseconds">
  <summary>Time from when the Connect() starts until it completes.</summary>
</histogram>

<histogram name="Net.SpdyIPPoolDomainMatch" enum="SpdyIPPoolDomainMatch"
    units="count">
  <summary>
    Status of checking if a SPDY domain can handle a IP match.  If a match is
    found, we successfully used the IP Pooling.  If a match is not found, we
    could have used IP Pooling, except the TLS Cert didn't match the IP-pooled
    domain.
  </summary>
</histogram>

<histogram name="Net.SpdyPing.RTT" units="milliseconds">
  <summary>The RTT for SPDY's PING.</summary>
</histogram>

<histogram name="Net.SpdyPriorityCount">
  <summary>The count of streams at each priority over Spdy sessions.</summary>
</histogram>

<histogram name="Net.SpdyRecvBytes" units="bytes">
  <summary>The number of bytes recevied per stream.</summary>
</histogram>

<histogram name="Net.SpdySendBytes" units="bytes">
  <summary>The number of bytes sent per stream.</summary>
</histogram>

<histogram name="Net.SpdySessionErrorDetails" enum="SpdyProtocolErrorDetails"
    units="count">
  <summary>The type of SPDY Protocol error encountered.</summary>
</histogram>

<histogram name="Net.SpdySessionErrorDetails_Google"
    enum="SpdyProtocolErrorDetails" units="count">
  <summary>
    The type of SPDY Protocol error encountered when talking to a google.com
    server.
  </summary>
</histogram>

<histogram name="Net.SpdySessionGet" enum="SpdySessionGet" units="count">
  <summary>The type of SPDY Session used when looking up a session.</summary>
</histogram>

<histogram name="Net.SpdySessionGetPeerAddressNotConnected"
    enum="BooleanSuccess">
  <summary>
    Whether SpdySession::Get{Peer,Local}Address was called when the connection
    had no socket.
  </summary>
</histogram>

<histogram name="Net.SpdySessionSocketNotConnectedGetLocalAddress"
    enum="BooleanSuccess">
  <summary>
    SpdySession::GetLocalAddress returned ERR_SOCKET_NOT_CONNECTED.
  </summary>
</histogram>

<histogram name="Net.SpdySessionSocketNotConnectedGetPeerAddress"
    enum="BooleanSuccess">
  <summary>
    SpdySession::GetPeerAddress returned ERR_SOCKET_NOT_CONNECTED.
  </summary>
</histogram>

<histogram name="Net.SpdySessionsWithStalls">
  <summary>The count of SPDY Sessions with or without stalls.</summary>
</histogram>

<histogram name="Net.SpdySettingsCwnd" units="packets">
  <summary>
    The congestion window (in pkts) received at the end of a SpdySession.
  </summary>
</histogram>

<histogram name="Net.SpdySettingsCwndSent" units="packets">
  <summary>
    The congestion window (in pkts) sent at the beginning of a SpdySession.
  </summary>
</histogram>

<histogram name="Net.SpdySettingsReceived" enum="SpdySettingsReceived"
    units="%">
  <summary>
    Percentage of sessions which received settings from the server.
  </summary>
</histogram>

<histogram name="Net.SpdySettingsRetransRate" units="%">
  <summary>
    The Download Retransmission Rate (%) received at the end of a SpdySession.
  </summary>
</histogram>

<histogram name="Net.SpdySettingsRTT" units="milliseconds">
  <summary>The RTT received at the end of a SpdySession.</summary>
</histogram>

<histogram name="Net.SpdySettingsSent" enum="SpdySettingsSent" units="%">
  <summary>Percentage of sessions which sent settings to the server.</summary>
</histogram>

<histogram name="Net.SpdyStreamDownloadTime" units="milliseconds">
  <summary>
    The time between receiving the the first chunk and the last chunk of data on
    a Spdy stream.
  </summary>
</histogram>

<histogram name="Net.SpdyStreamsAbandonedPerSession">
  <summary>
    The number of pushed, but abandoned streams over a single session.
  </summary>
</histogram>

<histogram name="Net.SpdyStreamsPerSession">
  <summary>The number of streams issued over a single session.</summary>
</histogram>

<histogram name="Net.SpdyStreamsPushedAndClaimedPerSession">
  <summary>
    The number of pushed, and used streams over a single session.
  </summary>
</histogram>

<histogram name="Net.SpdyStreamsPushedPerSession">
  <summary>The number of push streams received over a single session.</summary>
</histogram>

<histogram name="Net.SpdyStreamStallsPerSession">
  <summary>The number of stream stalls per session.</summary>
</histogram>

<histogram name="Net.SpdyStreamTime" units="milliseconds">
  <summary>
    The time of a Spdy stream.  Measured from sending the first chunk to
    receiving the last chunk of data.
  </summary>
</histogram>

<histogram name="Net.SpdyStreamTimeToFirstByte" units="milliseconds">
  <summary>
    The time between sending the request and receiving the first chunk of data
    on a Spdy stream.
  </summary>
</histogram>

<histogram name="Net.SpdySynStreamCompressionPercentage">
  <summary>
    The percent compression achieved when compression SYN_STREAM frames.
  </summary>
</histogram>

<histogram name="Net.SpdyVersion" enum="ProtocolVersion">
  <summary>
    The SPDY protocol version that is used to talk to SPDY servers.
  </summary>
</histogram>

<histogram name="Net.SSL_Connection_Latency" units="milliseconds">
  <summary>Time from when the Connect() starts until it completes.</summary>
</histogram>

<histogram name="Net.SSL_Connection_Latency_Google" units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes for google.com and
    any subdomain of it.
  </summary>
</histogram>

<histogram name="Net.SSL_Connection_Latency_Google_No_Revocation_Checking"
    units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes for google.com and
    any subdomain of it. This only includes users in a 50% field trial that
    disables revocation checking for certificate pinned sites.
  </summary>
</histogram>

<histogram name="Net.SSL_Connection_Latency_Google_Revocation_Checking"
    units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes for google.com and
    any subdomain of it. This only includes users not in a 50% field trail that
    disables revocation for certificate pinned sites.
  </summary>
</histogram>

<histogram name="Net.SSLCertBlacklisted">
  <summary>
    Counts the number of times that users have hit blacklisted certificates. The
    indexes match up to the indexes in
    net/base/x509_certificate.cc:IsBlacklisted. The details of the certificates
    in question is confidential.
  </summary>
</histogram>

<histogram name="Net.SSLCertVerificationTime" units="milliseconds">
  <summary>Time to complete a certificate verification (success case).</summary>
</histogram>

<histogram name="Net.SSLCertVerificationTimeError" units="milliseconds">
  <summary>Time to complete a certificate verification (error case).</summary>
</histogram>

<histogram name="Net.SSLHostInfoDNSLookup" units="milliseconds">
  <summary>Time to complete a DNS lookup for a DNS CAA record.</summary>
</histogram>

<histogram name="Net.SSLHostInfoDNSLookupDelayMs" units="milliseconds">
  <summary>
    Time that we would have wasted had we waited for a CAA lookup in order to
    validate a certificate.
  </summary>
</histogram>

<histogram name="Net.SSLHostInfoVerificationTimeMs" units="milliseconds">
  <summary>Time to complete a speculative certificate verification.</summary>
</histogram>

<histogram name="Net.SSLv3FallbackToRenegoPatchedServer"
    enum="TLSRenegotiationPatched">
  <summary>
    The number of times that we have performed SSLv3 fallback and found a TLS
    renegotiation patched server.
  </summary>
</histogram>

<histogram name="Net.SSLVerificationMerged">
  <summary>Was a speculative certificate verification used?</summary>
</histogram>

<histogram name="Net.SSLVerificationMergedMsSaved" units="milliseconds">
  <summary>Time saved by a speculative certificate vertification.</summary>
</histogram>

<histogram name="Net.TCP_Connection_Idle_Sockets">
  <summary>Number of idle sockets when the Connect() succeeded.</summary>
</histogram>

<histogram name="Net.TCP_Connection_Latency" units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes.  Only times under 10
    minutes are logged.
  </summary>
</histogram>

<histogram name="Net.TCP_Connection_Latency_IPv4_No_Race" units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes when the network
    address only contains IPv4 addresses.  Only times under 10 minutes are
    logged.
  </summary>
</histogram>

<histogram name="Net.TCP_Connection_Latency_IPv4_Wins_Race"
    units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes when the IPv4
    fallback connection won the race against IPv6.  Only times under 10 minutes
    are logged.
  </summary>
</histogram>

<histogram name="Net.TCP_Connection_Latency_IPv6_Raceable" units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes when we race an IPv6
    connection against an IPv4 connection with a 300ms delay.  Only times under
    10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.TCP_Connection_Latency_IPv6_Solo" units="milliseconds">
  <summary>
    Time from when the Connect() starts until it completes when the network
    address only contains IPv6 addresses.  Only times under 10 minutes are
    logged.
  </summary>
</histogram>

<histogram name="Net.TCPForSOCKSSocketIdleTimeBeforeNextUse_ReusedSocket">
  <obsolete>
    see SocketIdleTimeBeforeNextUse_ReusedSocket_TCPforSOCKS
  </obsolete>
  <summary>
    The time an already used TCP socket sat idle before being used for a SOCKS
    request.
  </summary>
</histogram>

<histogram name="Net.TCPForSOCKSSocketIdleTimeBeforeNextUse_UnusedSocket">
  <obsolete>
    see SocketIdleTimeBeforeNextUse_UnusedSocket_TCPforSOCKS
  </obsolete>
  <summary>
    The time an unused TCP socket sat idle before being used for a SOCKS
    request.
  </summary>
</histogram>

<histogram name="Net.TCPForSOCKSSocketRequestTime" units="milliseconds">
  <obsolete>
    see SocketRequestTime_TCPforSOCKS
  </obsolete>
  <summary>
    Time from initial SOCKSClientSocketPool::RequestSocket() call until
    successfully acquiring a connected TCP socket.
  </summary>
</histogram>

<histogram name="Net.TCPForSOCKSSocketType" enum="HttpSocketType">
  <obsolete>
    see SocketType_TCPforSOCKS
  </obsolete>
  <summary>
    The counts of the type of sockets returned by the TCP pool used by the SOCKS
    pool.
  </summary>
</histogram>

<histogram name="Net.TCPSocketType" enum="HttpSocketType">
  <obsolete>
    Was only used for HTTP[S] connections, renamed to Net.HTTPSocketType.
  </obsolete>
  <summary>The counts of the type of TCP socket returned.</summary>
</histogram>

<histogram name="Net.Transaction_Bandwidth" units="KB/s">
  <summary>
    (discontinued as of 4/12/09) Effective bandwidth in KByte/Second of
    transactions logged to Transaction_Latency histogram.  Note that only
    samples durations greater than zero ms, and less than 1 hour are tallied
    into this ratio.
  </summary>
</histogram>

<histogram name="Net.Transaction_Connected" units="milliseconds">
  <summary>
    Time from the when the network transaction is requested, until the first
    byte of the header is received.
  </summary>
</histogram>

<histogram name="Net.Transaction_Connected_New" units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Connected_New_b.
  </obsolete>
  <summary>
    When a new connection is established, the time from the when the network
    transaction is requested, until the first byte of the header is received.
    Only items under 10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Connected_New_b" units="milliseconds">
  <summary>
    When a new connection is established, the time from the when the network
    transaction is requested, until the first byte of the header is received.
  </summary>
</histogram>

<histogram name="Net.Transaction_Connected_Under_10" units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Connected.
  </obsolete>
  <summary>
    Time from the when the network transaction is requested, until the first
    byte of the header is received.  Only items under 10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency" units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Latency_b.
  </obsolete>
  <summary>
    Time from first byte sent until last byte received by the new network stack.
    Only items under 1 hour are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_b" units="milliseconds">
  <summary>
    Time from first byte sent until last byte received by the new network stack.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_Total" units="milliseconds">
  <summary>
    Time from when a network transaction is requested until last byte received
    by the new network stack.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_Total_New_Connection"
    units="milliseconds">
  <summary>
    When an existing TCP/IP connection is NOT reused, the time from when a
    network transaction is requested until last byte received by the new network
    stack.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_Total_New_Connection_Under_10"
    units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Latency_Total_New_Connection.
  </obsolete>
  <summary>
    When an existing TCP/IP connection is NOT reused, the time from when a
    network transaction is requested until last byte received by the new network
    stack.  Only items under 10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_Total_Under_10" units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Latency_Total.
  </obsolete>
  <summary>
    Time from when a network transaction is requested until last byte received
    by the new network stack.  Only items under 10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_Under_10" units="milliseconds">
  <obsolete>
    Replaced by Net.Transaction_Latency.
  </obsolete>
  <summary>
    Time from first byte sent until last byte received by the new network stack.
    Only items under 10 minutes are logged.
  </summary>
</histogram>

<histogram name="Net.Transaction_Latency_WinHTTP" units="milliseconds">
  <summary>
    Time from first byte sent until last byte received with old WinHTTP network
    stack.  Only items under 1 hour are logged.
  </summary>
</histogram>

<histogram name="Net.TransportSocketIdleTimeBeforeNextUse_ReusedSocket">
  <obsolete/>
  <summary>
    The time an already used TCP socket sat idle before being used (either for
    direct or non-socks use).
  </summary>
</histogram>

<histogram name="Net.TransportSocketIdleTimeBeforeNextUse_UnusedSocket">
  <obsolete/>
  <summary>
    The time an unused TCP socket sat idle before being used (either for direct
    or non-socks use).
  </summary>
</histogram>

<histogram name="Net.TransportSocketRequestTime" units="milliseconds">
  <obsolete/>
  <summary>
    Time from initial ClientSocketPool::RequestSocket() call until successfully
    acquiring a connected socket (either for direct or non-socks use).
  </summary>
</histogram>

<histogram name="Net.TransportSocketType" enum="HttpSocketType">
  <obsolete/>
  <summary>
    The counts of the type of sockets returned by the TCP pool (either for
    direct or non-socks use).
  </summary>
</histogram>

<histogram name="Net.UDPSocketWinClose" units="milliseconds">
  <summary>The time spent in closesocket call in UDPSocketWin::Close.</summary>
</histogram>

<histogram name="Net.Wifi.InterfaceCount">
  <summary>
    The number of Wi-fi adapters on the computer. Because the histogram is
    logged each time Chrome performs a Wi-fi scan, it's better to see results in
    the &quot;user count&quot; view.
  </summary>
</histogram>

<histogram name="Net.Wifi.LbsLatency" units="milliseconds">
  <summary>The time that a request to Location Based Services takes.</summary>
</histogram>

<histogram name="Net.Wifi.ScanLatency" units="milliseconds">
  <summary>The time that a Wi-fi scan takes.</summary>
</histogram>

<histogram name="Omnibox.AggressiveHistoryURLProviderFieldTrialBeacon"
    enum="OmniboxAggressiveHistoryURLProviderFieldTrialBeacon">
  <obsolete>
    Aggressive HistoryURL provider field trial deleted in spring 2012.
  </obsolete>
  <summary>
    A number that indicates what omnibox ranking behavior the user is seeing as
    part of the OmniboxAggressiveHistoryURLProvider field trial
    (OmniboxAggressiveHistoryURLProvider).
  </summary>
</histogram>

<histogram name="Omnibox.EnteredKeywordMode" enum="OmniboxEnteredKeywordMode">
  <summary>
    The number of times users enter keyword hint mode &quot;Search ___
    for:&quot; and how.
  </summary>
</histogram>

<histogram name="Omnibox.QueryBookmarksTime">
  <obsolete>
    Deprecated 2012-11-14. Replaced by Autocomplete.BookmarkProviderMatchTime.
  </obsolete>
  <summary>
    Time the HistoryContentProvider takes to perform a bookmark search.
  </summary>
</histogram>

<histogram name="Omnibox.QueryTime" units="milliseconds">
  <summary>
    Time it takes for the omnibox to become responsive to user input after the
    user has typed N characters. This measures the time it takes to start all
    the asynchronous autocomplete providers (but not wait for them to finish).
  </summary>
</histogram>

<histogram name="Omnibox.SearchEngine" enum="OmniboxSearchEngine">
  <summary>
    The id of search engine that was used for search in omnibox. See
    src/chrome/browser/search_engines/template_url_prepopulate_data.cc for more
    info.
  </summary>
</histogram>

<histogram name="Omnibox.SuggestRequest.Failure.GoogleResponseTime"
    units="milliseconds">
  <summary>
    The time elapsed between the sending of a suggest request to Google until
    the time the request was returned with status==failed. Ignores requests that
    were canceled before being returned.
  </summary>
</histogram>

<histogram name="Omnibox.SuggestRequest.Success.GoogleResponseTime"
    units="milliseconds">
  <summary>
    The time elapsed between the sending of a suggest request to Google until
    the time the request was returned with status==success. Ignores requests
    that were canceled before being returned.
  </summary>
</histogram>

<histogram name="Omnibox.SuggestRequests" enum="OmniboxSuggestRequests">
  <summary>
    Counts about the number of suggest requests the omnibox sent, invalidated,
    and replies received.
  </summary>
</histogram>

<histogram name="PlatformFile.UnknownCreateFileErrors" units="code">
  <summary>
    Errors returned by CreateFile on windows that PlatformFileError doesn't yet
    support.
  </summary>
</histogram>

<histogram name="PLT.Abandoned" enum="Abandoned">
  <summary>
    Distribution of actual finished pages, vs abandoned pages, where we needed
    to declare a finish time prematurely since the page was being closed
    (exited).
  </summary>
</histogram>

<histogram name="PLT.BeginToFinish" units="milliseconds">
  <summary>TBD</summary>
</histogram>

<histogram name="PLT.BeginToFinish_ContentPrefetcher" units="milliseconds">
  <summary>
    PLT.BeginToFinish, but for pages which contained prefetch links.
  </summary>
</histogram>

<histogram name="PLT.BeginToFinish_ContentPrefetcherReferrer"
    units="milliseconds">
  <summary>
    PLT.BeginToFinish, but for pages which were referred to by pages which
    contained prefetch links.
  </summary>
</histogram>

<histogram name="PLT.BeginToFinishDoc">
  <summary>TBD</summary>
</histogram>

<histogram name="PLT.BeginToFinishDoc_ContentPrefetcher" units="milliseconds">
  <summary>
    PLT.BeginToFinishDoc, but for pages which contained prefetch links.
  </summary>
</histogram>

<histogram name="PLT.BeginToFinishDoc_ContentPrefetcherReferrer"
    units="milliseconds">
  <summary>
    PLT.BeginToFinishDoc, but for pages which were referred to by pages which
    contained prefetch links.
  </summary>
</histogram>

<histogram name="PLT.BeginToFirstPaint" units="milliseconds">
  <summary>
    Time from &quot;begin&quot; to &quot;first paint.&quot;  &quot;Begin&quot;==
    &quot;request&quot; if user requested, and &quot;start&quot; otherwise.
    &quot;Request&quot;== time when user requested document. &quot;Start&quot;==
    time when renderer requested load of document, after any unload of last
    document. &quot;First paint&quot;== time when first paint operation was
    performed.
  </summary>
</histogram>

<histogram name="PLT.CommitToFirstPaint" units="milliseconds">
  <summary>
    Time from &quot;commit&quot; to &quot;first paint.&quot;
    &quot;Commit&quot;== time when renderer got first byte of document.
    &quot;First paint&quot;== time when first paint operation was performed.
  </summary>
</histogram>

<histogram name="PLT.LoadType" enum="LoadType">
  <summary>
    Probability distribution for enumerated varieties of page loads.
  </summary>
</histogram>

<histogram name="PLT.PerceivedLoadTime" units="milliseconds">
  <obsolete>
    Deprecated as of 5/02/2011, replaced by Prerender.RendererPLT.
  </obsolete>
  <summary>
    Perceived load time of a page. For non-prerendered pages, this is just
    BeginToFinish. For displayed prerendered pages, this is the time from when
    the prerendered page is moved into a TabContents until finish.
    &quot;Finish&quot; == after onload() and all resources are loaded. Note that
    this is 0 if the loading finishes before the page is moved into a
    TabContents.
  </summary>
</histogram>

<histogram name="PLT.PerceivedLoadTime_PrerenderLoad" units="milliseconds">
  <obsolete>
    Deprecated as of 5/02/2011, replaced by
    Prerender.RendererPerceivedPLTMatched.
  </obsolete>
  <summary>
    Perceived load time of a prerendered page that is displayed. This is the
    time from when the prerendered page is moved into a TabContents until
    finish. &quot;Finish&quot; == after onload() and all resources are loaded.
    Note that this is 0 if the loading finishes before the the page is moved
    into a TabContents.
  </summary>
</histogram>

<histogram name="PLT.RequestToFinish" units="milliseconds">
  <summary>
    Time from &quot;request&quot; to &quot;finish.&quot;  &quot;Request&quot; ==
    time when user requested document.  &quot;Finish&quot; == after onload() and
    all resources are loaded.
  </summary>
</histogram>

<histogram name="PLT.StartToCommit" units="milliseconds">
  <summary>
    Time from &quot;start&quot; to &quot;commit.&quot; &quot;Start&quot;== time
    when renderer requested load of document, after any unload of last document.
    &quot;Commit&quot;== time when renderer got first byte of document.
  </summary>
</histogram>

<histogram name="PLT.StartToFinish" units="milliseconds">
  <summary>
    Time from &quot;start&quot; to &quot;finish.&quot; &quot;Start&quot;== time
    when renderer requested load of document, after any unload of last document.
    &quot;Finish&quot;==after onload() and all resources are loaded.
  </summary>
</histogram>

<histogram name="Prerender.FinalStatus" enum="PrerenderFinalStatus">
  <summary>
    Final status for prerender pages - either success, or why it was canceled.
  </summary>
</histogram>

<histogram name="Prerender.FinalStatusMatchComplete"
    enum="PrerenderFinalStatus">
  <summary>
    Final status for prerender pages - either success, or why it was canceled.
    This is for the MatchComplete set of pages (including some pages that were
    not actually prerendered), to match the control group.
  </summary>
</histogram>

<histogram name="Prerender.FractionPixelsFinalAtSwapin">
  <summary>
    For prerenders that are swapped in, the percentage of pixels that is already
    final at swap-in time compared to when the spinner stops.
  </summary>
</histogram>

<histogram name="Prerender.LocalPredictorEvent"
    enum="PrerenderLocalPredictorEvents">
  <summary>
    Enumeration of what events related to the local predictor have occurred
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLT" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded for all pages loaded in a session.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTFirstAfterMiss" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded for the first page load completing immediately after a
    prerender.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTFirstAfterMissAnyOnly"
    units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    &quot;FirstAfterMiss&quot; means the first pageload after a prerender miss.
    There are two types: Any, and Non-overlapping.  The latter only applies to
    page loads initiated after the prerender.  This variable records cases where
    only Any triggered.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTFirstAfterMissBoth" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    &quot;FirstAfterMiss&quot; means the first pageload after a prerender miss.
    There are two types: Any, and Non-overlapping.  The latter only applies to
    page loads initiated after the prerender.  This variable records cases where
    both triggered.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTFirstAfterMissNonOverlapping"
    units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded for the first page load completing immediately after a
    prerender, but which has also started after the prerender has been
    initiated.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTFirstAfterMissNonOverlappingOnly"
    units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    &quot;FirstAfterMiss&quot; means the first pageload after a prerender miss.
    There are two types: Any, and Non-overlapping.  The latter only applies to
    page loads initiated after the prerender.  This variable records cases where
    only Non-overlapping triggered.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTMatched" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded only for prerendered pages, or for pages which would have
    been prerendered in the control case.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTMatchedComplete" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded only for prerendered pages, or for pages which would have
    been prerendered in the control case.

    In MatchedComplete, the prerender group also contains cancelled prerenders,
    so as to produce a perfect match of page views attributed this group in the
    prerender group with those attributed to this group in the control group.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTWindowed" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded for all page loads which happen within 30 seconds after a
    prefetch tag is observed.
  </summary>
</histogram>

<histogram name="Prerender.PerceivedPLTWindowNotMatched" units="milliseconds">
  <summary>
    Time from when a user navigates to a page to when it loads. Since the pages
    may start loading before the user navigates to it, this does not include any
    portion of load prior to navigation.

    This is recorded for all page loads which happen within 30 seconds after a
    prefetch tag is observed and which do not correspond to a prerender tag.
  </summary>
</histogram>

<histogram name="Prerender.PercentLoadDoneAtSwapin">
  <summary>
    For prerenders that are swapped in, the percentage of the time from load
    start until the onload event fires that has elapsed at the time of the
    swapin.
  </summary>
</histogram>

<histogram name="Prerender.PrerenderCountOf3Max">
  <summary>
    After launching a prerender, how many simultanious prerenders are recorded
    as running, out of a maximum of three.
  </summary>
</histogram>

<histogram name="Prerender.PrerenderNotSwappedInPLT" units="milliseconds">
  <summary>
    For prerenders that finish loading before they are ever swapped in, their
    page load time until the onload event fires.
  </summary>
</histogram>

<histogram name="Prerender.RendererIdleTime" units="milliseconds">
  <obsolete>
    deprecated Nov 16 2012
  </obsolete>
  <summary>
    This is the time from when a prerendered page finishes loading to when it is
    displayed, as measured by the renderer process. When a page is displayed
    before it finishes loading, no value is recorded in this histogram.
  </summary>
</histogram>

<histogram name="Prerender.RendererPerceivedPLT" units="milliseconds">
  <obsolete>
    deprecated Nov 16 2012
  </obsolete>
  <summary>
    Perceived load time of a page, as measured by the renderer process. For
    non-prerendered pages, this is just BeginToFinish. For displayed prerendered
    pages, this is the time from when the prerendered page is moved into a
    TabContents until finish. &quot;Finish&quot; == after onload() and all
    resources are loaded. Note that this is 0 if the loading finishes before the
    page is moved into a TabContents.
  </summary>
</histogram>

<histogram name="Prerender.RendererPerceivedPLTMatched" units="milliseconds">
  <obsolete>
    deprecated Nov 16 2012
  </obsolete>
  <summary>
    Perceived load time of a prerendered page that is displayed, as measured by
    the renderer process. This is the time from when the prerendered page is
    moved into a TabContents until finish. &quot;Finish&quot; == after onload()
    and all resources are loaded. Note that this is 0 if the loading finishes
    before the the page is moved into a TabContents.
  </summary>
</histogram>

<histogram name="Prerender.RendererTimeUntilDisplay" units="milliseconds">
  <obsolete>
    deprecated Nov 16 2012
  </obsolete>
  <summary>
    The time elapsed between when the prerendering of a page starts and when the
    page is displayed, as measured by the renderer process. Prerendered pages
    discarded without being displayed are excluded from this count.
  </summary>
</histogram>

<histogram name="Prerender.SimulatedLocalBrowsingBaselinePLT"
    units="milliseconds">
  <summary>
    For simulated local browsing prerendering, the baseline PLT of pages without
    any prerendering for pages that would be prerendered.
  </summary>
</histogram>

<histogram name="Prerender.SimulatedLocalBrowsingPLT" units="milliseconds">
  <summary>
    For simulated local browsing prerendering, the estimated PLT of pages with
    prerendering enabled for pages that would be prerendered.
  </summary>
</histogram>

<histogram name="Renderer2.FinishDocToFinish">
  <summary>
    The time from when a document finished loading to when all it's resources
    are also loaded.
  </summary>
</histogram>

<histogram name="Renderer2.RequestToFinish">
  <obsolete>
    Deprecated 6/15/09.  Replaced by Renderer2.RequestToFinish_L
  </obsolete>
  <summary>
    The time from when a page was requested by a user to when it is fully
    loaded.
  </summary>
</histogram>

<histogram name="Renderer2.RequestToFinish_L">
  <summary>
    The time from when a page was requested by a user to when it is fully
    loaded.
  </summary>
</histogram>

<histogram name="Renderer2.RequestToFirstLayout">
  <summary>
    The time from when a page was requested by a user to its first layout.
  </summary>
</histogram>

<histogram name="Renderer2.RequestToStart">
  <summary>
    The time from when a page was requested by a user to when it starts loading.
  </summary>
</histogram>

<histogram name="Renderer2.StartToFinish">
  <summary>
    The time from when a page started loading to when it is fully loaded.
  </summary>
</histogram>

<histogram name="Renderer2.StartToFinishDoc">
  <summary>
    The time from when a page starts loading to when the main document is
    finished loading.
  </summary>
</histogram>

<histogram name="Renderer2.StartToFirstLayout">
  <summary>
    The time from when a page starts loading to its first layout.
  </summary>
</histogram>

<histogram name="Renderer4.Abandoned" enum="Abandoned">
  <summary>
    Distribution of actual finished pages, vs abandoned pages, where we needed
    to declare a finish time prematurely since the page was being closed
    (exited).
  </summary>
</histogram>

<histogram name="Renderer4.BeginToFinish">
  <summary>TBD</summary>
</histogram>

<histogram name="Renderer4.BeginToFinishDoc">
  <summary>TBD</summary>
</histogram>

<histogram name="Renderer4.RequestToFinish" units="milliseconds">
  <summary>
    Time from &quot;request&quot; to &quot;finish.&quot;  &quot;Request&quot;==
    time when user requested document.  &quot;Finish&quot;==after onload() and
    all resources are loaded.
  </summary>
</histogram>

<histogram name="Renderer4.StartToFinish" units="milliseconds">
  <summary>
    Time from &quot;start&quot; to &quot;finish.&quot; &quot;Start&quot;== time
    when renderer requested load of document, after any unload of last document.
    &quot;Finish&quot;==after onload() and all resources are loaded.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.DismissalState"
    enum="AutofillDialogDismissalState">
  <summary>
    The state of the requestAutocomplete() dialog when it was dismissed.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.InitialUserState"
    enum="AutofillDialogInitialUserState">
  <summary>
    The initial state of a user that's interacting with a freshly shown
    requestAutocomplete() dialog.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.PopupInDialog"
    enum="AutofillDialogPopupEvent">
  <summary>
    User interactions with the Autofill popup shown while filling an
    requestAutocomplete() dialog.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.Security" enum="AutofillDialogSecurity">
  <summary>
    Measures the frequency of security warnings and errors in the
    RequestAutocomplete dialog.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.UiDuration" units="ms">
  <summary>
    Measures the duration for which an requestAutocomplete() dialog was shown.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.UiDuration.Cancel" units="ms">
  <summary>
    Measures the duration for which an requestAutocomplete() dialog was shown,
    in cases where the user ended up canceling out of the dialog.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.UiDuration.Submit" units="ms">
  <summary>
    Measures the duration for which an requestAutocomplete() dialog was shown,
    in cases where the user ended up accepting the dialog.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.UiEvents" enum="AutofillDialogUiEvents">
  <summary>
    Measures how users are interacting with the requestAutocomplete() dialog UI.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.WalletErrors" enum="WalletErrors">
  <summary>
    Measures the frequency of errors in communicating with the Google Online
    Wallet server.
  </summary>
</histogram>

<histogram name="RequestAutocomplete.WalletRequiredActions"
    enum="WalletRequiredActions">
  <summary>
    Measures the frequency of required user actions returned by the Google
    Online Wallet server.
  </summary>
</histogram>

<histogram name="Search.DefaultSearchProvider" enum="OmniboxSearchEngine">
  <summary>
    The id of the default search engine that is loaded after Chrome startup. See
    src/chrome/browser/search_engines/prepopulate_engines.json for more info.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.AcceptLegalDocuments" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's accept legal
    document API call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.AuthenticateInstrument" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's authenticate
    instrument API call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.GetFullWallet" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's get full wallet API
    call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.GetWalletItems" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's get wallet items
    API call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.SaveAddress" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's save address API
    call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.SaveInstrument" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's save instrument API
    call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.SaveInstrumentAndAddress" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's save instument and
    address API call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.SendStatus" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's send status API
    call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.UnknownApiCall" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's unknown API calls.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.UpdateAddress" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's update address API
    call.
  </summary>
</histogram>

<histogram name="Wallet.ApiCallDuration.UpdateInstrument" units="ms">
  <summary>
    Measures the time taken by Google Online Wallet server's update instument
    API call.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.BackingStore.ConsistencyError"
    enum="IDBLevelDBBackingStoreInternalErrorType">
  <summary>
    Methods that encountered consistency errors. Such errors probably point to a
    bug in our code.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.BackingStore.InternalError"
    enum="IDBLevelDBBackingStoreInternalErrorType">
  <obsolete>
    As of chrome 26, use {Consistency, Read, Write}Error instead.
  </obsolete>
  <summary>
    Count of internal IndexedDB errors (data corruption, I/O errors, etc)
    encountered.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.BackingStore.OpenStatus"
    enum="IDBLevelDBBackingStoreOpenResult">
  <summary>
    Count of the different success and failure modes when opening an IndexedDB
    backing store - clean open, successful open with recovery, failed recovery,
    etc.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.BackingStore.ReadError"
    enum="IDBLevelDBBackingStoreInternalErrorType">
  <summary>
    Methods that encountered leveldb errors while trying to read from disk.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.BackingStore.WriteError"
    enum="IDBLevelDBBackingStoreInternalErrorType">
  <summary>
    Methods that encountered leveldb errors while trying to write to disk.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.FrontEndAPICalls"
    enum="IndexedDatabaseMethods">
  <summary>
    Count total number of front end API calls of IndexedDB methods.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.LevelDB.FreeDiskSpaceFailure"
    enum="LevelDBErrorCount">
  <summary>
    Count of how many times LevelDBDatabase got an error trying to check free
    disk space.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.LevelDB.OpenFailureFreeDiskSpace" units="Kb">
  <summary>
    Amount of free disk space on the partition/volume/etc where LevelDB failed
    to open.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.LevelDB.OpenSuccessFreeDiskSpace" units="Kb">
  <summary>
    Amount of free disk space on the partition/volume/etc where LevelDB was
    successfully opened.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.LevelDBOpenErrors" enum="LevelDBErrorTypes">
  <summary>
    Error classes returned by LevelDB when it failed to open a database.
  </summary>
</histogram>

<histogram name="WebCore.IndexedDB.LevelDBWriteErrors" enum="LevelDBErrorTypes">
  <summary>
    Error classes returned by LevelDB when it failed to write to a database.
  </summary>
</histogram>

</histograms>

<!-- Enum types -->

<enums>

<enum name="Abandoned" type="int">
  <int value="0" label="Finished"/>
  <int value="1" label="Abandoned"/>
</enum>

<enum name="AutocheckoutBubble" type="int">
  <int value="0" label="Created"/>
  <int value="1" label="Accepted"/>
  <int value="2" label="Dismissed"/>
  <int value="3" label="Ignored"/>
  <int value="4" label="Could be displayed"/>
</enum>

<enum name="AutocheckoutBuyFlow" type="int">
  <int value="0" label="Started"/>
  <int value="1" label="Success"/>
  <int value="2" label="Missing field mappings"/>
  <int value="3" label="Missing advance element"/>
  <int value="4" label="Cannot proceed"/>
</enum>

<enum name="AutofillCreditCardInfoBar" type="int">
  <int value="0" label="Shown"/>
  <int value="1" label="Accepted"/>
  <int value="2" label="Denied"/>
  <int value="3" label="Ignored"/>
</enum>

<enum name="AutofillDeveloperEngagement" type="int">
  <int value="0" label="Fillable form parsed"/>
  <int value="1" label="Includes type hints"/>
</enum>

<enum name="AutofillDialogDismissalState" type="int">
  <int value="0" label="Submitted, existing data"/>
  <int value="1" label="Submitted, saved to Wallet"/>
  <int value="2" label="Submitted, saved locally"/>
  <int value="3" label="Submitted, no save"/>
  <int value="4" label="Canceled, no edits"/>
  <int value="5" label="Canceled, no invalid fields"/>
  <int value="6" label="Canceled, 1+ invalid fields"/>
</enum>

<enum name="AutofillDialogInitialUserState" type="int">
  <int value="0" label="Not signed in, no Autofill"/>
  <int value="1" label="Not signed in, has Autofill"/>
  <int value="2" label="Signed in, no Wallet, no Autofill"/>
  <int value="3" label="Signed in, no Wallet, has Autofill"/>
  <int value="4" label="Signed in, has Wallet, no Autofill"/>
  <int value="5" label="Signed in, ha Wallet, has Autofill"/>
</enum>

<enum name="AutofillDialogPopupEvent" type="int">
  <int value="0" label="Popup shown"/>
  <int value="1" label="Form Autofilled"/>
</enum>

<enum name="AutofillDialogSecurity" type="int">
  <int value="0" label="Baseline: Dialog shown"/>
  <int value="1" label="Credit card over HTTP"/>
  <int value="2" label="Cross-origin frame"/>
</enum>

<enum name="AutofillDialogUiEvents" type="int">
  <int value="0" label="Dialog shown"/>
  <int value="1" label="Dialog submitted"/>
  <int value="2" label="Dialog canceled"/>
  <int value="3" label="Account switched: Wallet-&gt;Autofill"/>
  <int value="4" label="Account switched: Autofill-&gt;Wallet"/>
  <int value="5" label="Account switched: Wallet-&gt;Wallet"/>
  <int value="6" label="Sign-in UI shown"/>
  <int value="7" label="Selected different email suggestion"/>
  <int value="8" label="Selected different billing suggestion"/>
  <int value="9" label="Selected different cc+billing suggestion"/>
  <int value="10" label="Selected different shipping suggestion"/>
  <int value="11" label="Selected different cc suggestion"/>
  <int value="12" label="Showed edit UI for email"/>
  <int value="13" label="Showed edit UI for billing"/>
  <int value="14" label="Showed edit UI for cc+billing"/>
  <int value="15" label="Showed edit UI for shipping"/>
  <int value="16" label="Showed edit UI for cc"/>
  <int value="17" label="Selected 'Add email' suggestion"/>
  <int value="18" label="Selected 'Add billing' suggestion"/>
  <int value="19" label="Selected 'Add cc+billing' suggestion"/>
  <int value="20" label="Selected 'Add shipping' suggestion"/>
  <int value="21" label="Selected 'Add cc' suggestion"/>
</enum>

<enum name="AutofillExperimentId" type="int">
  <int value="0" label="No Experiment"/>
  <int value="1" label="Unknown"/>
  <int value="2" label="ar06"/>
  <int value="3" label="ar1"/>
  <int value="4" label="ar2"/>
  <int value="5" label="ar4"/>
  <int value="6" label="ar05wlr15"/>
  <int value="7" label="ar05wlr25"/>
  <int value="8" label="ar05wlr25fs5"/>
  <int value="9" label="tbar1"/>
  <int value="10" label="ar04wr3fs4"/>
  <int value="11" label="No Server Response"/>
  <int value="12" label="fp05"/>
  <int value="13" label="fp025"/>
  <int value="14" label="fp05cc03"/>
  <int value="15" label="fp05cco03"/>
  <int value="16" label="fp05cco03cstd"/>
  <int value="17" label="fp05cc03e1"/>
</enum>

<enum name="AutofillQuality" type="int">
  <int value="0" label="Submitted"/>
  <int value="1" label="Autofilled"/>
  <int value="2" label="Autofill failed"/>
  <int value="3" label="Heuristic Unknown"/>
  <int value="4" label="Heuristic Match"/>
  <int value="5" label="Heuristic Mismatch"/>
  <int value="6" label="Server Unknown"/>
  <int value="7" label="Server Match"/>
  <int value="8" label="Server Mismatch"/>
</enum>

<enum name="AutofillQueryResult" type="int">
  <int value="0" label="Sent"/>
  <int value="1" label="Received"/>
  <int value="2" label="Parsed"/>
  <int value="3" label="Response matches local"/>
  <int value="4" label="Response improves local (nonempty)"/>
  <int value="5" label="Response improves local (empty)"/>
</enum>

<enum name="AutofillTypeQuality" type="int">
  <int value="0" label="Unknown"/>
  <int value="1" label="Match"/>
  <int value="2" label="Mismatch"/>
</enum>

<enum name="AutofillTypeQualityByFieldType" type="int">
  <int value="0" label="Ambiguous, Unknown"/>
  <int value="1" label="Ambiguous, Match"/>
  <int value="2" label="Ambiguous, Mismatch"/>
  <int value="3" label="Name, Unknown"/>
  <int value="4" label="Name, Match"/>
  <int value="5" label="Name, Mismatch"/>
  <int value="6" label="Company, Unknown"/>
  <int value="7" label="Company, Match"/>
  <int value="8" label="Company, Mismatch"/>
  <int value="9" label="Addr. line 1, Unknown"/>
  <int value="10" label="Addr. line 1, Match"/>
  <int value="11" label="Addr. line 1, Mismatch"/>
  <int value="12" label="Addr. line 2, Unknown"/>
  <int value="13" label="Addr. line 2, Match"/>
  <int value="14" label="Addr. line 2, Mismatch"/>
  <int value="15" label="City, Unknown"/>
  <int value="16" label="City, Match"/>
  <int value="17" label="City, Mismatch"/>
  <int value="18" label="State, Unknown"/>
  <int value="19" label="State, Match"/>
  <int value="20" label="State, Mismatch"/>
  <int value="21" label="ZIP code, Unknown"/>
  <int value="22" label="ZIP code, Match"/>
  <int value="23" label="ZIP code, Mismatch"/>
  <int value="24" label="Country, Unknown"/>
  <int value="25" label="Country, Match"/>
  <int value="26" label="Country, Mismatch"/>
  <int value="27" label="Phone, Unknown"/>
  <int value="28" label="Phone, Match"/>
  <int value="29" label="Phone, Mismatch"/>
  <int value="30" label="Fax, Unknown"/>
  <int value="31" label="Fax, Match"/>
  <int value="32" label="Fax, Mismatch"/>
  <int value="33" label="Email, Unknown"/>
  <int value="34" label="Email, Match"/>
  <int value="35" label="Email, Mismatch"/>
  <int value="36" label="Credit card: name, Unknown"/>
  <int value="37" label="Credit card: name, Match"/>
  <int value="38" label="Credit card: name, Mismatch"/>
  <int value="39" label="Credit card: number, Unknown"/>
  <int value="40" label="Credit card: number, Match"/>
  <int value="41" label="Credit card: number, Mismatch"/>
  <int value="42" label="Credit card: date, Unknown"/>
  <int value="43" label="Credit card: date, Match"/>
  <int value="44" label="Credit card: date, Mismatch"/>
</enum>

<enum name="AutofillUserHappiness" type="int">
  <int value="0" label="Forms loaded"/>
  <int value="1" label="Submitted fillable form, autofilled all"/>
  <int value="2" label="Submitted fillable form, autofilled some"/>
  <int value="3" label="Submitted fillable form, autofilled none"/>
  <int value="4" label="Submitted non-fillable form"/>
  <int value="5" label="User did type"/>
  <int value="6" label="Suggestions shown"/>
  <int value="7" label="Suggestions shown (once)"/>
  <int value="8" label="User did autofill"/>
  <int value="9" label="User did autofill (once)"/>
  <int value="10" label="User edited autofilled field"/>
  <int value="11" label="User edited autofilled field (once)"/>
</enum>

<enum name="BackingStoreResults" type="int">
  <int value="0" label="Unused"/>
  <int value="1" label="Success"/>
  <int value="2" label="Failure"/>
</enum>

<enum name="BooleanAttempted" type="int">
  <int value="0" label="Not Attempted"/>
  <int value="1" label="Attempted"/>
</enum>

<enum name="BooleanCovered" type="int">
  <int value="0" label="Not Covered"/>
  <int value="1" label="Covered"/>
</enum>

<enum name="BooleanCredentialsLost" type="int">
  <int value="0" label="Found Credentials"/>
  <int value="1" label="Missing Credentials"/>
</enum>

<enum name="BooleanDelete" type="int">
  <int value="0" label="Ignored"/>
  <int value="1" label="Deleted"/>
</enum>

<enum name="BooleanDuplicate" type="int">
  <int value="0" label="Not Duplicate"/>
  <int value="1" label="Duplicate"/>
</enum>

<enum name="BooleanEnabled" type="int">
  <int value="0" label="Disabled"/>
  <int value="1" label="Enabled"/>
</enum>

<enum name="BooleanExpired" type="int">
  <int value="0" label="Unexpired"/>
  <int value="1" label="Expired"/>
</enum>

<enum name="BooleanHit" type="int">
  <int value="0" label="Not_reached"/>
  <int value="1" label="Hit"/>
</enum>

<enum name="BooleanHttps" type="int">
  <int value="0" label="HTTP"/>
  <int value="1" label="HTTPS"/>
</enum>

<enum name="BooleanOrphan" type="int">
  <int value="0" label="Non-orphan"/>
  <int value="1" label="Orphan"/>
</enum>

<enum name="BooleanRaced" type="int">
  <int value="0" label="Did Not Race"/>
  <int value="1" label="Raced"/>
</enum>

<enum name="BooleanSelected" type="int">
  <int value="0" label="No selection"/>
  <int value="1" label="Selected"/>
</enum>

<enum name="BooleanSuccess" type="int">
  <int value="0" label="Failure"/>
  <int value="1" label="Success"/>
</enum>

<enum name="BooleanTabDiscard" type="int">
  <int value="0" label="Memory OK, no discards"/>
  <int value="1" label="Memory low, tabs discarded"/>
</enum>

<enum name="BooleanUsage" type="int">
  <int value="0" label="Not Used"/>
  <int value="1" label="Used"/>
</enum>

<enum name="BooleanWiped" type="int">
  <int value="0" label="Re-enabled"/>
  <int value="1" label="Wiped out"/>
</enum>

<enum name="ClipboardAction" type="int">
  <int value="0" label="Write from non-Incognito"/>
  <int value="1" label="Write from Incognito"/>
  <int value="2" label="Read Text"/>
</enum>

<enum name="CoalescePotentialPackets" type="int">
  <int value="0" label="No Advantage"/>
  <int value="1" label="Header packets Only"/>
  <int value="30" label="More Than 30"/>
</enum>

<enum name="ConnectionType" type="int">
  <summary>
    Connection type as defined in net/base/connection_type_histograms.h
  </summary>
  <int value="0" label="Any">Any connection (SSL, HTTP, SPDY, etc.)</int>
  <int value="1" label="SSL">An SSL connection</int>
  <int value="2" label="SSL-MD5">
    An SSL connection with an MD5 certificate in the certificate chain
    (excluding root)
  </int>
  <int value="3" label="SSL-MD2">
    An SSL connection with an MD2 certificate in the certificate chain
    (excluding root)
  </int>
  <int value="4" label="SSL-MD4">
    An SSL connection with an MD4 certificate in the certificate chain
    (excluding root)
  </int>
  <int value="5" label="SSL-MD5(CA)">
    An SSL connection with an MD5 CA certificate in the certificate chain
    (excluding root)
  </int>
  <int value="6" label="SSL-MD2(CA)">
    An SSL connection with an MD2 CA certificate in the cerfificate chain
    (excluding root)
  </int>
  <int value="7" label="HTTP">An HTTP connection</int>
  <int value="8" label="SPDY">A SPDY connection</int>
  <int value="9" label="SSL-2.0">An SSL connection that uses SSL 2.0</int>
  <int value="10" label="SSL-3.0">An SSL connection that uses SSL 3.0</int>
  <int value="11" label="TLS-1.0">An SSL connection that uses TLS 1.0</int>
  <int value="12" label="TLS-1.1">An SSL connection that uses TLS 1.1</int>
  <int value="13" label="TLS-1.2">An SSL connection that uses TLS 1.2</int>
</enum>

<enum name="CookieDeletionCause" type="int">
  <summary>Reason why a cookie was removed from the cookie store</summary>
  <int value="0" label="explicit">
    The user explicitly requested that we delete a cookie
  </int>
  <int value="1" label="overwrite">
    The value of the cookie was overwritten by a new value
  </int>
  <int value="2" label="expired">The cookie expiration time passed</int>
  <int value="3" label="evicted">
    The cookie was evicted during garbage collection (replaced by
    domain_evicted/global_evicted below)
  </int>
  <int value="4" label="store_dup">
    The backing store had two copies of the cookie so one was removed (i.e.
    problems writing the backing store database)
  </int>
  <int value="5" label="dont_record">
    The cookie deletion should not be recorded because it occurred, e.g., during
    shutdown (the fact that these values showed up in the histogram is a bug,
    since fixed)
  </int>
  <int value="6" label="domain_evicted">
    The cookie was evicted during per-domain/eTLD+1 garbage collection
  </int>
  <int value="7" label="global_evicted">
    The cookie was evicted during whole store garbage collection.
  </int>
  <int value="8" label="domain_evicted_pre_safe">
    The cookie evicted during per-domain/eTLD+1 garbage collection, and would
    have been evicted by the global garbage collection process (because they
    hadn't been accessed recently enough).
  </int>
  <int value="9" label="domain_evicted_post_safe">
    The cookie evicted during per-domain/eTLD+1 garbage collection, and would
    not have been evicted by global metrics as well (because they had been
    accessed recently enough to save).
  </int>
  <int value="10" label="expired_overwrite">
    The cookie deletion occurred because the server overwrote it with an already
    expired cookie (this is a common idiom for server deletions of cookies).
  </int>
</enum>

<enum name="DoubleGetExperimentMethods" type="int">
  <int value="0" label="POST"/>
  <int value="1" label="GET_CACHABLE"/>
  <int value="2" label="GET_NON_CACHABLE"/>
</enum>

<enum name="EnterprisePolicies" type="int">
<!-- Generated from ../../../chrome/app/policy/policy_templates.json -->

  <int value="1" label="Configure the home page URL"/>
  <int value="2" label="Use New Tab Page as homepage"/>
  <int value="3" label="Set Chrome as Default Browser"/>
  <int value="4" label="Application locale"/>
  <int value="5" label="Enable alternate error pages"/>
  <int value="6" label="Enable search suggestions"/>
  <int value="7" label="Enable network prediction"/>
  <int value="8" label="Disable SPDY protocol"/>
  <int value="9" label="Enable JavaScript"/>
  <int value="10" label="Enable Incognito mode"/>
  <int value="11" label="Disable saving browser history"/>
  <int value="12" label="Enable printing"/>
  <int value="13" label="Enable Google Cloud Print proxy"/>
  <int value="14" label="Enable Safe Browsing"/>
  <int value="15" label="Enable reporting of usage and crash-related data"/>
  <int value="16" label="Enable the password manager"/>
  <int value="17" label="Allow users to show passwords in Password Manager"/>
  <int value="18" label="Enable AutoFill"/>
  <int value="19" label="Specify a list of disabled plugins"/>
  <int value="20" label="Disable synchronization of data with Google"/>
  <int value="21" label="Choose how to specify proxy server settings"/>
  <int value="22" label="Choose how to specify proxy server settings"/>
  <int value="23" label="Address or URL of proxy server"/>
  <int value="24" label="URL to a proxy .pac file"/>
  <int value="25" label="Proxy bypass rules"/>
  <int value="26" label="Supported authentication schemes"/>
  <int value="27"
      label="Disable CNAME lookup when negotiating Kerberos authentication"/>
  <int value="28" label="Include non-standard port in Kerberos SPN"/>
  <int value="29" label="Authentication server whitelist"/>
  <int value="30" label="Kerberos delegation server whitelist"/>
  <int value="31" label="GSSAPI library name"/>
  <int value="32" label="Configure extension installation blacklist"/>
  <int value="33" label="Configure extension installation whitelist"/>
  <int value="34" label="Configure the list of force-installed extensions"/>
  <int value="35" label="Show Home button on toolbar"/>
  <int value="36" label="Disable Developer Tools"/>
  <int value="37" label="Action on startup"/>
  <int value="38" label="URLs to open on startup"/>
  <int value="39" label="Block third party cookies"/>
  <int value="40" label="Enable the default search provider"/>
  <int value="41" label="Default search provider name"/>
  <int value="42" label="Default search provider keyword"/>
  <int value="43" label="Default search provider search URL"/>
  <int value="44" label="Default search provider suggest URL"/>
  <int value="45" label="Default search provider instant URL"/>
  <int value="46" label="Default search provider icon"/>
  <int value="47" label="Default search provider encodings"/>
  <int value="48" label="Default cookies setting"/>
  <int value="49" label="Default images setting"/>
  <int value="50" label="Default JavaScript setting"/>
  <int value="51" label="Default plugins setting"/>
  <int value="52" label="Default popups setting"/>
  <int value="53" label="Default notification setting"/>
  <int value="54" label="Default geolocation setting"/>
  <int value="55" label="Disable support for 3D graphics APIs"/>
  <int value="56" label="Refresh rate for user policy"/>
  <int value="57" label="Default HTML renderer for Google Chrome Frame"/>
  <int value="58"
      label="Always render the following URL patterns in Google Chrome Frame"/>
  <int value="59"
      label="Always render the following URL patterns in the host browser"/>
  <int value="60"
      label="Allow Google Chrome Frame to handle the listed content types"/>
  <int value="61" label="Enable lock when the device become idle or suspended"/>
  <int value="62" label="Enable Instant"/>
  <int value="63" label="Set user data directory"/>
  <int value="64" label="Set download directory"/>
  <int value="65" label="Clear site data on browser shutdown (deprecated)"/>
  <int value="66" label="Specify whether the plugin finder should be disabled"/>
  <int value="67" label="Block cookies on these sites"/>
  <int value="68" label="Allow session only cookies on these sites"/>
  <int value="69" label="Allow images on these sites"/>
  <int value="70" label="Block images on these sites"/>
  <int value="71" label="Allow JavaScript on these sites"/>
  <int value="72" label="Block JavaScript on these sites"/>
  <int value="73" label="Allow plugins on these sites"/>
  <int value="74" label="Block plugins on these sites"/>
  <int value="75" label="Allow popups on these sites"/>
  <int value="76" label="Block popups on these sites"/>
  <int value="77" label="Allow cookies on these sites"/>
  <int value="78" label="Specify a list of enabled plugins"/>
  <int value="79"
      label="Specify a list of plugins that the user can enable or disable"/>
  <int value="80" label="Enable Translate"/>
  <int value="81" label="Allow running plugins that are outdated"/>
  <int value="82" label="Enable Bookmark Bar"/>
  <int value="83" label="Enables or disables bookmark editing"/>
  <int value="84" label="Allow invocation of file selection dialogs"/>
  <int value="85" label="Disable URL protocol schemes"/>
  <int value="86" label="Always runs plugins that require authorization"/>
  <int value="87" label="Set Google Chrome Frame user data directory"/>
  <int value="88" label="Set disk cache directory"/>
  <int value="89" label="Cross-origin HTTP Basic Auth prompts"/>
  <int value="90" label="Refresh rate for Device Policy"/>
  <int value="91" label="Release channel"/>
  <int value="92"
      label="Maximal number of concurrent connections to the proxy server"/>
  <int value="93" label="Incognito mode availability"/>
  <int value="94" label="Enable firewall traversal from remote access client"/>
  <int value="95" label="Enable firewall traversal from remote access host"/>
  <int value="96"
      label="Prevent app promotions from appearing on the new tab page"/>
  <int value="97" label="Import bookmarks from default browser on first run"/>
  <int value="98"
      label="Import browsing history from default browser on first run"/>
  <int value="99" label="Import of homepage from default browser on first run"/>
  <int value="100"
      label="Import search engines from default browser on first run"/>
  <int value="101"
      label="Import saved passwords from default browser on first run"/>
  <int value="102"
      label="Automatically select client certificates for these sites"/>
  <int value="103" label="Block access to a list of URLs"/>
  <int value="104" label="Allows access to a list of URLs"/>
  <int value="105" label="Allow notifications on these sites"/>
  <int value="106" label="Block notifications on these sites"/>
  <int value="107" label="User-level network configuration"/>
  <int value="108" label="Device-level network configuration"/>
  <int value="109"
      label="Enable submission of documents to Google Cloud Print"/>
  <int value="110" label="Set disk cache size in bytes"/>
  <int value="111" label="Set media disk cache size in bytes"/>
  <int value="112" label="Enterprise web store URL"/>
  <int value="113" label="Enterprise web store name"/>
  <int value="114" label="Enable TLS domain-bound certificates extension"/>
  <int value="115" label="Enable reporting memory info (JS heap size) to page"/>
  <int value="116" label="Proxy settings"/>
  <int value="117" label="Disable Print Preview"/>
  <int value="118" label="Disable SSL record splitting"/>
  <int value="119" label="Report OS and firmware version"/>
  <int value="120" label="Report device activity times"/>
  <int value="121" label="Report device boot mode"/>
  <int value="122" label="Login user white list"/>
  <int value="123" label="Allow creation of new user accounts"/>
  <int value="124" label="Enable guest mode"/>
  <int value="125" label="Show usernames on login screen"/>
  <int value="126" label="Enable data roaming"/>
  <int value="127" label="Enable metrics reporting"/>
  <int value="128" label="Wipe user data on sign-out"/>
  <int value="129" label="Whether online OCSP/CRL checks are performed"/>
  <int value="130" label="Timeout until idle user log-out is executed"/>
  <int value="131" label="Duration of the idle log-out warning message"/>
  <int value="132"
      label="Screen saver to be used on the sign-in screen in retail mode"/>
  <int value="133"
      label="Duration of inactivity before the screen saver is shown on the
             sign-in screen in retail mode"/>
  <int value="134"
      label="Whether the release channel should be configurable by the user"/>
  <int value="135" label="List of AppPack extensions"/>
  <int value="136" label="Disables Auto Update"/>
  <int value="137" label="Load specified urls on demo login"/>
  <int value="138"
      label="Continue running background apps when Google Chrome is closed"/>
  <int value="139" label="Disables Drive"/>
  <int value="140" label="Disables Google Drive over Cellular connections"/>
  <int value="141"
      label="Additional command line parameters for Google Chrome"/>
  <int value="142" label="Target Auto Update Version"/>
  <int value="143" label="Report device location"/>
  <int value="144" label="List of pinned apps to show in the launcher"/>
  <int value="145" label="Auto update scatter factor"/>
  <int value="146" label="Connection types allowed for updates"/>
  <int value="147"
      label="Restrict which users are allowed to sign in to Google Chrome"/>
  <int value="148"
      label="Configure extension, app, and user script install sources"/>
  <int value="149" label="Default mediastream setting"/>
  <int value="150"
      label="Disable proceeding from the Safe Browsing warning page"/>
  <int value="151" label="Enable or disable spell checking web service"/>
  <int value="152" label="Disable mounting of external storage"/>
  <int value="153" label="Disable taking screenshots"/>
  <int value="154"
      label="Configure the required domain name for remote access hosts"/>
  <int value="155"
      label="Enable two-factor authentication for remote access hosts"/>
  <int value="156"
      label="Configure the TalkGadget prefix for remote access hosts"/>
  <int value="157" label="Enable curtaining of remote access hosts"/>
  <int value="158" label="Timezone"/>
  <int value="159" label="Allow playing audio"/>
  <int value="160" label="Allow or deny audio capture"/>
  <int value="161"
      label="List of alternate URLs for the default search provider"/>
  <int value="162" label="Force SafeSearch"/>
  <int value="163" label="Device-local accounts"/>
  <int value="164" label="Add a logout button to the system tray"/>
  <int value="165" label="Use built-in DNS client"/>
  <int value="166" label="Control shelf auto-hiding"/>
  <int value="167" label="Allow or deny video capture"/>
  <int value="168" label="Configure allowed app/extension types"/>
  <int value="169" label="Set the display name for device-local accounts"/>
  <int value="170" label="Limit the session length"/>
  <int value="171"
      label="Parameter controlling search term placement for the default
             search provider"/>
  <int value="172" label="Screen dim delay when running on AC power"/>
  <int value="173" label="Screen off delay when running on AC power"/>
  <int value="174" label="Screen lock delay when running on AC power"/>
  <int value="175" label="Idle delay when running on AC power"/>
  <int value="176" label="Screen dim delay when running on battery power"/>
  <int value="177" label="Screen off delay when running on battery power"/>
  <int value="178" label="Screen lock delay when running on battery power"/>
  <int value="179" label="Idle delay when running on battery power"/>
  <int value="180" label="Action to take when the idle delay is reached"/>
  <int value="181" label="Action to take when the user closes the lid"/>
  <int value="182"
      label="Specify whether audio activity affects power management"/>
  <int value="183"
      label="Specify whether video activity affects power management"/>
  <int value="184"
      label="Percentage by which to scale the idle delay in presentation mode"/>
  <int value="185"
      label="Allow users to redeem offers through Chrome OS Registration."/>
  <int value="186" label="Set the Terms of Service for a device-local account"/>
  <int value="187" label="Enable deleting browser and download history"/>
  <int value="188" label="Show accessibility options in system tray menu"/>
  <int value="189"
      label="Hide the web store from the new tab page and app launcher"/>
  <int value="190" label="Allows sign in to Chrome"/>
  <int value="191" label="System wide flags to be applied on Chrome start-up"/>
  <int value="192" label="Limit device uptime by automatically rebooting"/>
  <int value="193" label="Automatically reboot after update"/>
  <int value="194" label="Public session for auto-login"/>
  <int value="195" label="Public session auto-login timer"/>
  <int value="196"
      label="Set the restriction on the fetching of the Variations seed"/>
  <int value="197" label="Idle warning delay when running on AC power"/>
  <int value="198" label="Idle warning delay when running on battery power"/>
</enum>

<enum name="ErrorCodesGetAdaptersAddresses" type="int">
  <int value="8" label="ERROR_NOT_ENOUGH_MEMORY"/>
  <int value="87" label="ERROR_INVALID_PARAMETER"/>
  <int value="111" label="ERROR_BUFFER_OVERFLOW"/>
  <int value="232" label="ERROR_NO_DATA"/>
  <int value="1228" label="ERROR_ADDRESS_NOT_ASSOCIATED"/>
</enum>

<enum name="ErrorCodesGetaddrinfo_All" type="int">
  <int value="1" label="EAI_BADFLAGS(L)"/>
  <int value="2" label="EAI_NONAME(L) EAI_AGAIN(M)"/>
  <int value="3" label="EAI_AGAIN(L) EAI_BADFLAGS(M)"/>
  <int value="4" label="EAI_FAIL"/>
  <int value="5" label="EAI_NODATA(L) EAI_FAMILY(M)"/>
  <int value="6" label="WSA_INVALID_HANDLE EAI_FAMILY(L) EAI_MEMORY(M)"/>
  <int value="7" label="EAI_SOCKTYPE(L) EAI_NODATA(M)"/>
  <int value="8" label="WSA_NOT_ENOUGH_MEMORY EAI_SERVICE(L) EAI_NONAME(M)"/>
  <int value="9" label="EAI_ADDRFAMILY EAI_SERVICE(M)"/>
  <int value="10" label="EAI_MEMORY(L) EAI_SOCKTYPE(L)"/>
  <int value="11" label="EAI_SYSTEM"/>
  <int value="12" label="EAI_OVERFLOW"/>
  <int value="10022" label="WSAEINVAL"/>
  <int value="10044" label="WSAESOCKTNOSUPPORT"/>
  <int value="10047" label="WSAEAFNOSUPPORT"/>
  <int value="10093" label="WSANOTINITIALISED"/>
  <int value="10109" label="WSA_TYPE_NOT_FOUND"/>
  <int value="11001" label="WSA_HOST_NOT_FOUND"/>
  <int value="11002" label="WSATRY_AGAIN"/>
  <int value="11003" label="WSA_ANO_RECOVERY"/>
  <int value="11004" label="WSANO_DATA"/>
</enum>

<enum name="ErrorCodesGetaddrinfo_Linux" type="int">
  <int value="1" label="EAI_BADFLAGS"/>
  <int value="2" label="EAI_NONAME"/>
  <int value="3" label="EAI_AGAIN"/>
  <int value="4" label="EAI_FAIL"/>
  <int value="5" label="EAI_NODATA"/>
  <int value="6" label="EAI_FAMILY"/>
  <int value="7" label="EAI_SOCKTYPE"/>
  <int value="8" label="EAI_SERVICE"/>
  <int value="9" label="EAI_ADDRFAMILY"/>
  <int value="10" label="EAI_MEMORY"/>
  <int value="11" label="EAI_SYSTEM"/>
  <int value="12" label="EAI_OVERFLOW"/>
</enum>

<enum name="ErrorCodesGetaddrinfo_Mac" type="int">
  <int value="1" label="EAI_ADDRFAMILY"/>
  <int value="2" label="EAI_AGAIN"/>
  <int value="3" label="EAI_BADFLAGS"/>
  <int value="4" label="EAI_FAIL"/>
  <int value="5" label="EAI_FAMILY"/>
  <int value="6" label="EAI_MEMORY"/>
  <int value="7" label="EAI_NODATA"/>
  <int value="8" label="EAI_NONAME"/>
  <int value="9" label="EAI_SERVICE"/>
  <int value="10" label="EAI_SOCKTYPE"/>
  <int value="11" label="EAI_SYSTEM"/>
  <int value="12" label="EAI_BADHINTS"/>
  <int value="13" label="EAI_PROTOCOL"/>
  <int value="14" label="EAI_OVERFLOW"/>
</enum>

<enum name="ErrorCodesGetaddrinfo_Win" type="int">
  <int value="6" label="WSA_INVALID_HANDLE"/>
  <int value="8" label="WSA_NOT_ENOUGH_MEMORY or EAI_SERVICE"/>
  <int value="10022" label="WSAEINVAL"/>
  <int value="10044" label="WSAESOCKTNOSUPPORT"/>
  <int value="10047" label="WSAEAFNOSUPPORT"/>
  <int value="10093" label="WSANOTINITIALISED"/>
  <int value="10109" label="WSA_TYPE_NOT_FOUND"/>
  <int value="11001" label="WSA_HOST_NOT_FOUND"/>
  <int value="11002" label="WSATRY_AGAIN"/>
  <int value="11003" label="WSA_ANO_RECOVERY"/>
  <int value="11004" label="WSANO_DATA"/>
</enum>

<enum name="ExtensionFunctions" type="int">
<!-- Generated from ../../../chrome/browser/extensions/extension_function_histogram_value.h -->

  <int value="0" label="UNKNOWN"/>
  <int value="1" label="WEBNAVIGATION_GETALLFRAMES"/>
  <int value="2" label="BROWSINGDATA_REMOVEWEBSQL"/>
  <int value="3" label="ALARMS_CREATE"/>
  <int value="4" label="FILEBROWSERPRIVATE_REMOVEFILEWATCH"/>
  <int value="5" label="COOKIES_GET"/>
  <int value="6" label="FONTSETTINGS_GETMINIMUMFONTSIZE"/>
  <int value="7" label="CHROMEOSINFOPRIVATE_GET"/>
  <int value="8" label="BOOKMARKMANAGERPRIVATE_CUT"/>
  <int value="9" label="TABS_CAPTUREVISIBLETAB"/>
  <int value="10" label="MANAGEMENT_SETENABLED"/>
  <int value="11" label="HISTORY_DELETEALL"/>
  <int value="12" label="STORAGE_GET"/>
  <int value="13" label="SOCKET_SETKEEPALIVE"/>
  <int value="14" label="DOWNLOADS_CANCEL"/>
  <int value="15" label="BOOKMARKS_CREATE"/>
  <int value="16" label="BOOKMARKS_UPDATE"/>
  <int value="17" label="FILEBROWSERPRIVATE_GETDRIVEFILES"/>
  <int value="18" label="TERMINALPRIVATE_ONTERMINALRESIZE"/>
  <int value="19" label="FILEBROWSERPRIVATE_REQUESTDIRECTORYREFRESH"/>
  <int value="20" label="BLUETOOTH_GETADAPTERSTATE"/>
  <int value="21" label="FILEBROWSERPRIVATE_CANCELFILETRANSFERS"/>
  <int value="22" label="FILEBROWSERPRIVATE_PINDRIVEFILE"/>
  <int value="23" label="SOCKET_WRITE"/>
  <int value="24" label="OMNIBOX_SETDEFAULTSUGGESTION"/>
  <int value="25" label="TTS_SPEAK"/>
  <int value="26" label="WALLPAPERPRIVATE_RESTOREMINIMIZEDWINDOWS"/>
  <int value="27" label="BROWSINGDATA_REMOVEHISTORY"/>
  <int value="28" label="FILEBROWSERPRIVATE_ISFULLSCREEN"/>
  <int value="29" label="AUTOTESTPRIVATE_LOGOUT"/>
  <int value="30" label="EXPERIMENTAL_HISTORY_GETMOSTVISITED"/>
  <int value="31" label="BLUETOOTH_DISCONNECT"/>
  <int value="32" label="BLUETOOTH_SETOUTOFBANDPAIRINGDATA"/>
  <int value="33" label="BOOKMARKMANAGERPRIVATE_CANPASTE"/>
  <int value="34" label="AUTOTESTPRIVATE_RESTART"/>
  <int value="35" label="USB_CLAIMINTERFACE"/>
  <int value="36" label="MEDIAPLAYERPRIVATE_SETWINDOWHEIGHT"/>
  <int value="37" label="EXPERIMENTAL_PROCESSES_GETPROCESSINFO"/>
  <int value="38" label="HISTORY_GETVISITS"/>
  <int value="39" label="SOCKET_BIND"/>
  <int value="40" label="TABS_MOVE"/>
  <int value="41" label="SOCKET_DISCONNECT"/>
  <int value="42" label="FILESYSTEM_GETWRITABLEENTRY"/>
  <int value="43" label="SYNCFILESYSTEM_REQUESTFILESYSTEM"/>
  <int value="44" label="COMMANDS_GETALL"/>
  <int value="45" label="EXPERIMENTAL_DISCOVERY_REMOVESUGGESTION"/>
  <int value="46" label="EXPERIMENTAL_INPUT_VIRTUALKEYBOARD_SENDKEYBOARDEVENT"/>
  <int value="47" label="BOOKMARKMANAGERPRIVATE_GETSUBTREE"/>
  <int value="48" label="EXPERIMENTAL_RLZ_RECORDPRODUCTEVENT"/>
  <int value="49" label="BOOKMARKS_GETRECENT"/>
  <int value="50" label="APP_CURRENTWINDOWINTERNAL_SETBOUNDS"/>
  <int value="51" label="CLOUDPRINTPRIVATE_SETUPCONNECTOR"/>
  <int value="52" label="SERIAL_SETCONTROLSIGNALS"/>
  <int value="53" label="FILEBROWSERPRIVATE_SETLASTMODIFIED"/>
  <int value="54" label="IDLE_SETDETECTIONINTERVAL"/>
  <int value="55" label="FILEBROWSERPRIVATE_GETFILETASKS"/>
  <int value="56" label="WEBSTOREPRIVATE_GETSTORELOGIN"/>
  <int value="57" label="SYSTEMPRIVATE_GETINCOGNITOMODEAVAILABILITY"/>
  <int value="58" label="EXPERIMENTAL_IDLTEST_SENDARRAYBUFFERVIEW"/>
  <int value="59" label="SOCKET_SETNODELAY"/>
  <int value="60" label="APP_CURRENTWINDOWINTERNAL_SHOW"/>
  <int value="61" label="WEBSTOREPRIVATE_GETBROWSERLOGIN"/>
  <int value="62" label="EXPERIMENTAL_IDENTITY_GETAUTHTOKEN"/>
  <int value="63" label="SYSTEMINFO_DISPLAY_GETDISPLAYINFO"/>
  <int value="64" label="BROWSINGDATA_REMOVEPLUGINDATA"/>
  <int value="65" label="SOCKET_LISTEN"/>
  <int value="66" label="MEDIAGALLERIES_GETMEDIAFILESYSTEMS"/>
  <int value="67" label="DOWNLOADS_OPEN"/>
  <int value="68" label="TABS_EXECUTESCRIPT"/>
  <int value="69" label="SYNCFILESYSTEM_GETUSAGEANDQUOTA"/>
  <int value="70" label="INPUTMETHODPRIVATE_GET"/>
  <int value="71" label="USB_CLOSEDEVICE"/>
  <int value="72" label="TTS_STOP"/>
  <int value="73" label="SERIAL_GETPORTS"/>
  <int value="74" label="FILEBROWSERPRIVATE_CLEARDRIVECACHE"/>
  <int value="75" label="SERIAL_GETCONTROLSIGNALS"/>
  <int value="76" label="DEVELOPERPRIVATE_ENABLE"/>
  <int value="77" label="FILEBROWSERPRIVATE_GETDRIVEFILEPROPERTIES"/>
  <int value="78" label="USB_FINDDEVICES"/>
  <int value="79" label="BOOKMARKMANAGERPRIVATE_DROP"/>
  <int value="80" label="FILEBROWSERPRIVATE_GETFILETRANSFERS"/>
  <int value="81" label="INPUT_IME_SETMENUITEMS"/>
  <int value="82" label="BOOKMARKS_EXPORT"/>
  <int value="83" label="HISTORY_SEARCH"/>
  <int value="84" label="TTSENGINE_SENDTTSEVENT"/>
  <int value="85" label="EXPERIMENTAL_ACCESSIBILITY_GETALERTSFORTAB"/>
  <int value="86" label="BOOKMARKS_IMPORT"/>
  <int value="87" label="SYNCFILESYSTEM_DELETEFILESYSTEM"/>
  <int value="88" label="DEBUGGER_SENDCOMMAND"/>
  <int value="89" label="DEBUGGER_DETACH"/>
  <int value="90" label="METRICSPRIVATE_RECORDSMALLCOUNT"/>
  <int value="91" label="APP_CURRENTWINDOWINTERNAL_MINIMIZE"/>
  <int value="92" label="DEVELOPERPRIVATE_AUTOUPDATE"/>
  <int value="93" label="EXPERIMENTAL_DNS_RESOLVE"/>
  <int value="94" label="EXPERIMENTAL_SYSTEMINFO_MEMORY_GET"/>
  <int value="95" label="HISTORY_ADDURL"/>
  <int value="96" label="TABS_GET"/>
  <int value="97" label="BROWSERACTION_SETBADGETEXT"/>
  <int value="98" label="TABS_RELOAD"/>
  <int value="99" label="WINDOWS_CREATE"/>
  <int value="100" label="DEVELOPERPRIVATE_LOADUNPACKED"/>
  <int value="101" label="DELETED_DOWNLOADS_SETDESTINATION"/>
  <int value="102" label="EXPERIMENTAL_PROCESSES_GETPROCESSIDFORTAB"/>
  <int value="103" label="BOOKMARKS_GETCHILDREN"/>
  <int value="104" label="BROWSERACTION_GETTITLE"/>
  <int value="105" label="TERMINALPRIVATE_OPENTERMINALPROCESS"/>
  <int value="106" label="SERIAL_CLOSE"/>
  <int value="107" label="CONTEXTMENUS_REMOVE"/>
  <int value="108" label="FILEBROWSERPRIVATE_REQUESTLOCALFILESYSTEM"/>
  <int value="109" label="ECHOPRIVATE_GETREGISTRATIONCODE"/>
  <int value="110" label="TABS_GETCURRENT"/>
  <int value="111" label="FONTSETTINGS_CLEARDEFAULTFIXEDFONTSIZE"/>
  <int value="112" label="MEDIAPLAYERPRIVATE_CLOSEWINDOW"/>
  <int value="113" label="WEBREQUESTINTERNAL_ADDEVENTLISTENER"/>
  <int value="114" label="CLOUDPRINTPRIVATE_GETPRINTERS"/>
  <int value="115" label="STORAGE_SET"/>
  <int value="116" label="FONTSETTINGS_GETDEFAULTFONTSIZE"/>
  <int value="117" label="EXTENSION_SETUPDATEURLDATA"/>
  <int value="118" label="SERIAL_WRITE"/>
  <int value="119" label="IDLE_QUERYSTATE"/>
  <int value="120" label="EXPERIMENTAL_RLZ_GETACCESSPOINTRLZ"/>
  <int value="121" label="WEBSTOREPRIVATE_SETSTORELOGIN"/>
  <int value="122" label="PAGEACTIONS_ENABLEFORTAB"/>
  <int value="123" label="COOKIES_SET"/>
  <int value="124" label="CONTENTSETTINGS_SET"/>
  <int value="125" label="CONTEXTMENUS_REMOVEALL"/>
  <int value="126" label="TABS_INSERTCSS"/>
  <int value="127" label="WEBREQUEST_HANDLERBEHAVIORCHANGED"/>
  <int value="128" label="INPUT_IME_SETCURSORPOSITION"/>
  <int value="129" label="OMNIBOX_SENDSUGGESTIONS"/>
  <int value="130" label="SYSTEMINDICATOR_ENABLE"/>
  <int value="131" label="EVENTS_GETRULES"/>
  <int value="132" label="BOOKMARKMANAGERPRIVATE_COPY"/>
  <int value="133" label="SOCKET_RECVFROM"/>
  <int value="134" label="TABS_GETALLINWINDOW"/>
  <int value="135" label="CONTEXTMENUS_UPDATE"/>
  <int value="136" label="BOOKMARKS_SEARCH"/>
  <int value="137" label="EXPERIMENTAL_APP_CLEARALLNOTIFICATIONS"/>
  <int value="138" label="BLUETOOTH_GETLOCALOUTOFBANDPAIRINGDATA"/>
  <int value="139" label="SYSTEMPRIVATE_GETUPDATESTATUS"/>
  <int value="140" label="FONTSETTINGS_CLEARMINIMUMFONTSIZE"/>
  <int value="141" label="FILEBROWSERPRIVATE_GETFILELOCATIONS"/>
  <int value="142" label="EXPERIMENTAL_DISCOVERY_SUGGEST"/>
  <int value="143" label="FILEBROWSERPRIVATE_SETDEFAULTTASK"/>
  <int value="144" label="BROWSERACTION_GETBADGETEXT"/>
  <int value="145" label="APP_CURRENTWINDOWINTERNAL_HIDE"/>
  <int value="146" label="SOCKET_CONNECT"/>
  <int value="147" label="BOOKMARKS_GETSUBTREE"/>
  <int value="148" label="HISTORY_DELETEURL"/>
  <int value="149" label="EXPERIMENTAL_MEDIAGALLERIES_ASSEMBLEMEDIAFILE"/>
  <int value="150" label="BOOKMARKMANAGERPRIVATE_STARTDRAG"/>
  <int value="151" label="BROWSINGDATA_REMOVEPASSWORDS"/>
  <int value="152" label="DOWNLOADS_DRAG"/>
  <int value="153" label="INPUT_IME_SETCOMPOSITION"/>
  <int value="154" label="METRICSPRIVATE_RECORDUSERACTION"/>
  <int value="155" label="USB_RELEASEINTERFACE"/>
  <int value="156" label="PAGEACTION_GETPOPUP"/>
  <int value="157" label="SCRIPTBADGE_GETATTENTION"/>
  <int value="158" label="FONTSETTINGS_GETFONTLIST"/>
  <int value="159" label="PERMISSIONS_CONTAINS"/>
  <int value="160" label="SCRIPTBADGE_GETPOPUP"/>
  <int value="161" label="EXPERIMENTAL_ACCESSIBILITY_GETFOCUSEDCONTROL"/>
  <int value="162" label="DEVELOPERPRIVATE_GETSTRINGS"/>
  <int value="163" label="METRICSPRIVATE_RECORDMEDIUMCOUNT"/>
  <int value="164" label="MANAGEMENT_GET"/>
  <int value="165" label="PERMISSIONS_GETALL"/>
  <int value="166" label="DOWNLOADS_SHOW"/>
  <int value="167" label="EXPERIMENTAL_RLZ_CLEARPRODUCTSTATE"/>
  <int value="168" label="TABS_REMOVE"/>
  <int value="169" label="MANAGEMENT_GETPERMISSIONWARNINGSBYID"/>
  <int value="170" label="WINDOWS_GET"/>
  <int value="171" label="FILEBROWSERPRIVATE_EXECUTETASK"/>
  <int value="172" label="TTS_GETVOICES"/>
  <int value="173" label="MANAGEMENT_GETALL"/>
  <int value="174" label="MANAGEMENT_GETPERMISSIONWARNINGSBYMANIFEST"/>
  <int value="175" label="APP_CURRENTWINDOWINTERNAL_CLEARATTENTION"/>
  <int value="176" label="AUTOTESTPRIVATE_SHUTDOWN"/>
  <int value="177" label="FONTSETTINGS_CLEARDEFAULTFONTSIZE"/>
  <int value="178" label="BOOKMARKS_GETTREE"/>
  <int value="179" label="FILEBROWSERPRIVATE_SELECTFILES"/>
  <int value="180" label="RUNTIME_GETBACKGROUNDPAGE"/>
  <int value="181" label="EXPERIMENTAL_RECORD_REPLAYURLS"/>
  <int value="182" label="WEBSTOREPRIVATE_COMPLETEINSTALL"/>
  <int value="183" label="EXPERIMENTAL_SPEECHINPUT_START"/>
  <int value="184" label="COOKIES_GETALL"/>
  <int value="185" label="DOWNLOADS_GETFILEICON"/>
  <int value="186" label="PAGEACTION_GETTITLE"/>
  <int value="187" label="BROWSINGDATA_REMOVE"/>
  <int value="188" label="SERIAL_OPEN"/>
  <int value="189" label="FILESYSTEM_GETDISPLAYPATH"/>
  <int value="190" label="FILEBROWSERPRIVATE_FORMATDEVICE"/>
  <int value="191" label="BOOKMARKS_GET"/>
  <int value="192" label="MANAGEDMODEPRIVATE_GET"/>
  <int value="193" label="ALARMS_CLEAR"/>
  <int value="194" label="SYNCFILESYSTEM_GETFILESYNCSTATUS"/>
  <int value="195" label="SOCKET_GETINFO"/>
  <int value="196" label="WEBSTOREPRIVATE_INSTALLBUNDLE"/>
  <int value="197" label="BROWSERACTION_ENABLE"/>
  <int value="198" label="METRICSPRIVATE_RECORDMEDIUMTIME"/>
  <int value="199" label="PAGEACTION_SETTITLE"/>
  <int value="200" label="CLOUDPRINTPRIVATE_GETHOSTNAME"/>
  <int value="201" label="CONTENTSETTINGS_GETRESOURCEIDENTIFIERS"/>
  <int value="202" label="SOCKET_CREATE"/>
  <int value="203" label="DEVELOPERPRIVATE_RELOAD"/>
  <int value="204" label="FILEBROWSERPRIVATE_GETMOUNTPOINTS"/>
  <int value="205" label="APP_RUNTIME_POSTINTENTRESPONSE"/>
  <int value="206" label="MANAGEDMODEPRIVATE_SETPOLICY"/>
  <int value="207" label="WEBSTOREPRIVATE_BEGININSTALLWITHMANIFEST3"/>
  <int value="208" label="WALLPAPERPRIVATE_SETWALLPAPER"/>
  <int value="209" label="USB_CONTROLTRANSFER"/>
  <int value="210" label="EXPERIMENTAL_SPEECHINPUT_STOP"/>
  <int value="211" label="USB_BULKTRANSFER"/>
  <int value="212" label="FILEBROWSERPRIVATE_GETVOLUMEMETADATA"/>
  <int value="213" label="PAGECAPTURE_SAVEASMHTML"/>
  <int value="214" label="EXTENSION_ISALLOWEDINCOGNITOACCESS"/>
  <int value="215" label="BROWSINGDATA_REMOVEAPPCACHE"/>
  <int value="216" label="APP_CURRENTWINDOWINTERNAL_DRAWATTENTION"/>
  <int value="217" label="METRICSPRIVATE_RECORDCOUNT"/>
  <int value="218" label="USB_INTERRUPTTRANSFER"/>
  <int value="219" label="TYPES_CHROMESETTING_CLEAR"/>
  <int value="220" label="INPUT_IME_COMMITTEXT"/>
  <int value="221" label="EXPERIMENTAL_IDLTEST_SENDARRAYBUFFER"/>
  <int value="222" label="WALLPAPERPRIVATE_SETWALLPAPERIFEXISTS"/>
  <int value="223" label="SOCKET_ACCEPT"/>
  <int value="224" label="WEBNAVIGATION_GETFRAME"/>
  <int value="225" label="EXPERIMENTAL_POWER_RELEASEKEEPAWAKE"/>
  <int value="226" label="APP_CURRENTWINDOWINTERNAL_SETICON"/>
  <int value="227" label="PUSHMESSAGING_GETCHANNELID"/>
  <int value="228" label="EXPERIMENTAL_INFOBARS_SHOW"/>
  <int value="229" label="INPUT_IME_SETCANDIDATEWINDOWPROPERTIES"/>
  <int value="230" label="METRICSPRIVATE_RECORDPERCENTAGE"/>
  <int value="231" label="TYPES_CHROMESETTING_GET"/>
  <int value="232" label="WINDOWS_GETLASTFOCUSED"/>
  <int value="233" label="MANAGEDMODEPRIVATE_GETPOLICY"/>
  <int value="234" label="STORAGE_CLEAR"/>
  <int value="235" label="STORAGE_GETBYTESINUSE"/>
  <int value="236" label="TABS_QUERY"/>
  <int value="237" label="PAGEACTION_SETPOPUP"/>
  <int value="238" label="DEVELOPERPRIVATE_INSPECT"/>
  <int value="239" label="DOWNLOADS_SEARCH"/>
  <int value="240" label="FONTSETTINGS_CLEARFONT"/>
  <int value="241" label="WINDOWS_UPDATE"/>
  <int value="242" label="BOOKMARKMANAGERPRIVATE_CANOPENNEWWINDOWS"/>
  <int value="243" label="SERIAL_FLUSH"/>
  <int value="244" label="BROWSERACTION_SETTITLE"/>
  <int value="245" label="BOOKMARKMANAGERPRIVATE_CANEDIT"/>
  <int value="246" label="WALLPAPERPRIVATE_SETCUSTOMWALLPAPER"/>
  <int value="247" label="BOOKMARKS_REMOVE"/>
  <int value="248" label="INPUT_IME_SETCANDIDATES"/>
  <int value="249" label="TERMINALPRIVATE_CLOSETERMINALPROCESS"/>
  <int value="250" label="HISTORY_DELETERANGE"/>
  <int value="251" label="EXPERIMENTAL_IDLTEST_GETARRAYBUFFER"/>
  <int value="252" label="TERMINALPRIVATE_SENDINPUT"/>
  <int value="253" label="TABS_HIGHLIGHT"/>
  <int value="254" label="BLUETOOTH_STARTDISCOVERY"/>
  <int value="255" label="FILEBROWSERPRIVATE_SELECTFILE"/>
  <int value="256" label="WINDOWS_GETCURRENT"/>
  <int value="257" label="DEBUGGER_ATTACH"/>
  <int value="258" label="WALLPAPERPRIVATE_SAVETHUMBNAIL"/>
  <int value="259" label="INPUT_IME_KEYEVENTHANDLED"/>
  <int value="260" label="FONTSETTINGS_SETDEFAULTFONTSIZE"/>
  <int value="261" label="RUNTIME_REQUESTUPDATECHECK"/>
  <int value="262" label="PAGEACTION_SETICON"/>
  <int value="263" label="BROWSERACTION_SETBADGEBACKGROUNDCOLOR"/>
  <int value="264" label="DEVELOPERPRIVATE_GETITEMSINFO"/>
  <int value="265" label="BLUETOOTH_STOPDISCOVERY"/>
  <int value="266" label="COOKIES_REMOVE"/>
  <int value="267" label="EXPERIMENTAL_RLZ_SENDFINANCIALPING"/>
  <int value="268" label="TABCAPTURE_GETCAPTUREDTABS"/>
  <int value="269" label="WINDOWS_REMOVE"/>
  <int value="270" label="WALLPAPERPRIVATE_GETOFFLINEWALLPAPERLIST"/>
  <int value="271" label="BROWSERACTION_GETBADGEBACKGROUNDCOLOR"/>
  <int value="272" label="PAGEACTIONS_DISABLEFORTAB"/>
  <int value="273" label="DEVELOPERPRIVATE_ALLOWFILEACCESS"/>
  <int value="274" label="FILEBROWSERPRIVATE_REMOVEMOUNT"/>
  <int value="275" label="BLUETOOTH_CONNECT"/>
  <int value="276" label="TABCAPTURE_CAPTURE"/>
  <int value="277" label="NOTIFICATIONS_CREATE"/>
  <int value="278" label="TABS_DUPLICATE"/>
  <int value="279" label="BLUETOOTH_WRITE"/>
  <int value="280" label="PAGEACTION_SHOW"/>
  <int value="281" label="WALLPAPERPRIVATE_GETTHUMBNAIL"/>
  <int value="282" label="DOWNLOADS_PAUSE"/>
  <int value="283" label="PERMISSIONS_REQUEST"/>
  <int value="284" label="TOPSITES_GET"/>
  <int value="285" label="BROWSINGDATA_REMOVEDOWNLOADS"/>
  <int value="286" label="BROWSINGDATA_REMOVELOCALSTORAGE"/>
  <int value="287" label="FILEBROWSERHANDLERINTERNAL_SELECTFILE"/>
  <int value="288" label="INPUT_IME_UPDATEMENUITEMS"/>
  <int value="289" label="FILEBROWSERPRIVATE_GETSTRINGS"/>
  <int value="290" label="CONTENTSETTINGS_GET"/>
  <int value="291" label="FONTSETTINGS_SETDEFAULTFIXEDFONTSIZE"/>
  <int value="292" label="EXPERIMENTAL_APP_NOTIFY"/>
  <int value="293" label="METRICSPRIVATE_RECORDLONGTIME"/>
  <int value="294" label="SOCKET_READ"/>
  <int value="295" label="EXPERIMENTAL_PROCESSES_TERMINATE"/>
  <int value="296" label="METRICSPRIVATE_RECORDTIME"/>
  <int value="297" label="BOOKMARKMANAGERPRIVATE_GETSTRINGS"/>
  <int value="298" label="USB_ISOCHRONOUSTRANSFER"/>
  <int value="299" label="PERMISSIONS_REMOVE"/>
  <int value="300" label="MANAGEMENT_UNINSTALL"/>
  <int value="301" label="I18N_GETACCEPTLANGUAGES"/>
  <int value="302" label="MANAGEMENT_LAUNCHAPP"/>
  <int value="303" label="INPUT_IME_CLEARCOMPOSITION"/>
  <int value="304" label="ALARMS_GETALL"/>
  <int value="305" label="DIAL_DISCOVERNOW"/>
  <int value="306" label="TYPES_CHROMESETTING_SET"/>
  <int value="307" label="BROWSERACTION_SETICON"/>
  <int value="308" label="EXPERIMENTAL_ACCESSIBILITY_SETACCESSIBILITYENABLED"/>
  <int value="309" label="FILEBROWSERPRIVATE_VIEWFILES"/>
  <int value="310" label="BLUETOOTH_GETSERVICES"/>
  <int value="311" label="TABS_UPDATE"/>
  <int value="312" label="BROWSINGDATA_REMOVEFORMDATA"/>
  <int value="313" label="FILEBROWSERPRIVATE_RELOADDRIVE"/>
  <int value="314" label="ALARMS_GET"/>
  <int value="315" label="BROWSINGDATA_REMOVEINDEXEDDB"/>
  <int value="316" label="FILEBROWSERPRIVATE_ADDFILEWATCH"/>
  <int value="317" label="CONTENTSETTINGS_CLEAR"/>
  <int value="318" label="FILEBROWSERPRIVATE_GETPREFERENCES"/>
  <int value="319" label="BOOKMARKMANAGERPRIVATE_PASTE"/>
  <int value="320" label="FILESYSTEM_ISWRITABLEENTRY"/>
  <int value="321" label="USB_SETINTERFACEALTERNATESETTING"/>
  <int value="322" label="FONTSETTINGS_SETMINIMUMFONTSIZE"/>
  <int value="323" label="BROWSERACTION_GETPOPUP"/>
  <int value="324" label="SOCKET_DESTROY"/>
  <int value="325" label="BLUETOOTH_GETDEVICES"/>
  <int value="326" label="ALARMS_CLEARALL"/>
  <int value="327" label="FONTSETTINGS_GETDEFAULTFIXEDFONTSIZE"/>
  <int value="328" label="FILEBROWSERPRIVATE_ZIPSELECTION"/>
  <int value="329" label="SYSTEMINDICATOR_DISABLE"/>
  <int value="330" label="SCRIPTBADGE_SETPOPUP"/>
  <int value="331" label="EXTENSION_ISALLOWEDFILESCHEMEACCESS"/>
  <int value="332" label="EXPERIMENTAL_IDENTITY_LAUNCHWEBAUTHFLOW"/>
  <int value="333" label="FILEBROWSERPRIVATE_GETDRIVECONNECTIONSTATE"/>
  <int value="334" label="TABS_DETECTLANGUAGE"/>
  <int value="335" label="METRICSPRIVATE_RECORDVALUE"/>
  <int value="336" label="BOOKMARKMANAGERPRIVATE_SORTCHILDREN"/>
  <int value="337" label="SERIAL_READ"/>
  <int value="338" label="APP_CURRENTWINDOWINTERNAL_MAXIMIZE"/>
  <int value="339" label="EXPERIMENTAL_DISCOVERY_CLEARALLSUGGESTIONS"/>
  <int value="340" label="MANAGEDMODEPRIVATE_ENTER"/>
  <int value="341" label="FILEBROWSERPRIVATE_TRANSFERFILE"/>
  <int value="342" label="BROWSERACTION_SETPOPUP"/>
  <int value="343" label="TABS_GETSELECTED"/>
  <int value="344" label="FONTSETTINGS_GETFONT"/>
  <int value="345" label="BLUETOOTH_READ"/>
  <int value="346" label="WEBREQUESTINTERNAL_EVENTHANDLED"/>
  <int value="347" label="EVENTS_ADDRULES"/>
  <int value="348" label="CONTEXTMENUS_CREATE"/>
  <int value="349" label="MEDIAPLAYERPRIVATE_GETPLAYLIST"/>
  <int value="350" label="DOWNLOADS_ERASE"/>
  <int value="351" label="EXPERIMENTAL_RECORD_CAPTUREURLS"/>
  <int value="352" label="TTS_ISSPEAKING"/>
  <int value="353" label="BOOKMARKS_REMOVETREE"/>
  <int value="354" label="FILEBROWSERPRIVATE_SEARCHDRIVE"/>
  <int value="355" label="EXPERIMENTAL_SYSTEMINFO_CPU_GET"/>
  <int value="356" label="FILEBROWSERPRIVATE_SETPREFERENCES"/>
  <int value="357" label="FONTSETTINGS_SETFONT"/>
  <int value="358" label="SOCKET_GETNETWORKLIST"/>
  <int value="359" label="BOOKMARKS_MOVE"/>
  <int value="360" label="WALLPAPERPRIVATE_MINIMIZEINACTIVEWINDOWS"/>
  <int value="361" label="STORAGE_REMOVE"/>
  <int value="362" label="AUTOTESTPRIVATE_LOGINSTATUS"/>
  <int value="363" label="TABS_CREATE"/>
  <int value="364" label="FILEBROWSERPRIVATE_CANCELDIALOG"/>
  <int value="365" label="BROWSINGDATA_REMOVECOOKIES"/>
  <int value="366" label="FILESYSTEM_CHOOSEENTRY"/>
  <int value="367" label="MEDIAPLAYERPRIVATE_PLAY"/>
  <int value="368" label="WEBSTOREPRIVATE_GETWEBGLSTATUS"/>
  <int value="369" label="SOCKET_SENDTO"/>
  <int value="370" label="BROWSINGDATA_REMOVEFILESYSTEMS"/>
  <int value="371" label="WALLPAPERPRIVATE_GETSTRINGS"/>
  <int value="372" label="BROWSINGDATA_REMOVECACHE"/>
  <int value="373" label="BOOKMARKMANAGERPRIVATE_RECORDLAUNCH"/>
  <int value="374" label="BROWSERACTION_DISABLE"/>
  <int value="375" label="EXPERIMENTAL_SPEECHINPUT_ISRECORDING"/>
  <int value="376" label="APP_WINDOW_CREATE"/>
  <int value="377" label="RUNTIME_RELOAD"/>
  <int value="378" label="EXPERIMENTAL_POWER_REQUESTKEEPAWAKE"/>
  <int value="379" label="SYSTEMINDICATOR_SETICON"/>
  <int value="380" label="FILEBROWSERPRIVATE_ADDMOUNT"/>
  <int value="381" label="APP_CURRENTWINDOWINTERNAL_FOCUS"/>
  <int value="382" label="EVENTS_REMOVERULES"/>
  <int value="383" label="DOWNLOADS_DOWNLOAD"/>
  <int value="384" label="WINDOWS_GETALL"/>
  <int value="385" label="FILEBROWSERPRIVATE_TOGGLEFULLSCREEN"/>
  <int value="386" label="APP_CURRENTWINDOWINTERNAL_RESTORE"/>
  <int value="387" label="WEBSOCKETPROXYPRIVATE_GETPASSPORTFORTCP"/>
  <int value="388" label="PAGEACTION_HIDE"/>
  <int value="389" label="EXPERIMENTAL_SYSTEMINFO_STORAGE_GET"/>
  <int value="390" label="DOWNLOADS_ACCEPTDANGER"/>
  <int value="391" label="WEBSOCKETPROXYPRIVATE_GETURLFORTCP"/>
  <int value="392" label="FILEBROWSERPRIVATE_GETSIZESTATS"/>
  <int value="393" label="DOWNLOADS_RESUME"/>
  <int value="394" label="COOKIES_GETALLCOOKIESTORES"/>
  <int value="395" label="MEDIAGALLERIESPRIVATE_ADDGALLERYWATCH"/>
  <int value="396" label="MEDIAGALLERIESPRIVATE_REMOVEGALLERYWATCH"/>
  <int value="397" label="WEBVIEW_EXECUTESCRIPT"/>
  <int value="398" label="NOTIFICATIONS_UPDATE"/>
  <int value="399" label="NOTIFICATIONS_CLEAR"/>
  <int value="400" label="SESSIONRESTORE_GETRECENTLYCLOSED"/>
  <int value="401" label="SESSIONRESTORE_RESTORE"/>
  <int value="402" label="MANAGEMENT_UNINSTALLSELF"/>
  <int value="403" label="ECHOPRIVATE_GETOOBETIMESTAMP"/>
  <int value="404" label="FILEBROWSERPRIVATE_VALIDATEPATHNAMELENGTH"/>
  <int value="405" label="BROWSINGDATA_SETTINGS"/>
  <int value="406" label="WEBSTOREPRIVATE_GETISLAUNCHERENABLED"/>
  <int value="407" label="NETWORKINGPRIVATE_GETPROPERTIES"/>
  <int value="408" label="NETWORKINGPRIVATE_GETVISIBLENETWORKS"/>
  <int value="409" label="NETWORKINGPRIVATE_STARTCONNECT"/>
  <int value="410" label="NETWORKINGPRIVATE_STARTDISCONNECT"/>
  <int value="411" label="MEDIAGALLERIESPRIVATE_GETALLGALLERYWATCH"/>
  <int value="412" label="MEDIAGALLERIESPRIVATE_REMOVEALLGALLERYWATCH"/>
  <int value="413" label="FILEBROWSERPRIVATE_SEARCHDRIVEMETADATA"/>
  <int value="414" label="ECHOPRIVATE_CHECKALLOWREDEEMOFFERS"/>
  <int value="415" label="MEDIAGALLERIESPRIVATE_EJECTDEVICE"/>
  <int value="416" label="FILEBROWSERPRIVATE_LOGOUTUSER"/>
  <int value="417" label="DEVELOPERPRIVATE_CHOOSEPATH"/>
  <int value="418" label="DEVELOPERPRIVATE_PACKDIRECTORY"/>
  <int value="419" label="NETWORKINGPRIVATE_VERIFYDESTINATION"/>
  <int value="420" label="NETWORKINGPRIVATE_VERIFYANDENCRYPTCREDENTIALS"/>
  <int value="421" label="NETWORKINGPRIVATE_VERIFYANDENCRYPTDATA"/>
  <int value="422" label="DEVELOPERPRIVATE_RESTART"/>
  <int value="423" label="DEVELOPERPRIVATE_ALLOWINCOGNITO"/>
  <int value="424" label="INPUT_IME_DELETESURROUNDINGTEXT"/>
  <int value="425" label="FILEBROWSERPRIVATE_OPENNEWWINDOW"/>
  <int value="426" label="CLOUDPRINTPRIVATE_GETCLIENTID"/>
  <int value="427" label="ECHOPRIVATE_GETUSERCONSENT"/>
  <int value="428" label="SYNCFILESYSTEM_SETCONFLICTRESOLUTIONPOLICY"/>
  <int value="429" label="SYNCFILESYSTEM_GETCONFLICTRESOLUTIONPOLICY"/>
  <int value="430" label="NETWORKINGPRIVATE_SETPROPERTIES"/>
  <int value="431" label="NETWORKINGPRIVATE_GETSTATE"/>
  <int value="432" label="POWER_REQUESTKEEPAWAKE"/>
  <int value="433" label="POWER_RELEASEKEEPAWAKE"/>
  <int value="434" label="WALLPAPERPRIVATE_SETCUSTOMWALLPAPERLAYOUT"/>
  <int value="435" label="DOWNLOADSINTERNAL_DETERMINEFILENAME"/>
  <int value="436" label="SYNCFILESYSTEM_GETFILESYNCSTATUSES"/>
  <int value="437" label="MEDIAGALLERIESPRIVATE_GETHANDLERS"/>
  <int value="438" label="WALLPAPERPRIVATE_RESETWALLPAPER"/>
</enum>

<enum name="FallbackSSLVersion" type="int">
  <int value="0" label="FALLBACK_NONE">SSL version fallback did not occur.</int>
  <int value="1" label="FALLBACK_SSL3">Fell back on SSL 3.0.</int>
  <int value="2" label="FALLBACK_TLS1">Fell back on TLS 1.0.</int>
  <int value="3" label="FALLBACK_TLS1_1">Fell back on TLS 1.1.</int>
</enum>

<enum name="FtpDataConnectionError" type="int">
  <int value="0">Data connection successful</int>
  <int value="1">Local firewall blocked the connection</int>
  <int value="2">Connection timed out</int>
  <int value="3">
    Connection has been established, but then got broken (either reset or
    aborted)
  </int>
  <int value="4">Connection has been refused</int>
  <int value="20">Other kind of error</int>
</enum>

<enum name="FtpServerType" type="int">
  <summary>
    FTP server type as defined in net/ftp/ftp_server_type_histograms.h
  </summary>
  <int value="0" label="Unknown">
    Unknown (could be a server we don't support, a broken server, or a security
    attack)
  </int>
  <int value="1" label="/bin/ls">Server using /bin/ls -l and variants</int>
  <int value="2" label="/bin/dls">Server using /bin/dls</int>
  <int value="3" label="EPLF">Server using EPLF format</int>
  <int value="4" label="WinNT">
    WinNT server configured for old style listing
  </int>
  <int value="5" label="VMS">VMS (including variants)</int>
  <int value="6" label="IBM VM">IBM VM/CMS, VM/ESA, z/VM formats</int>
  <int value="7" label="OS/2">OS/2 FTP Server</int>
  <int value="8" label="win16">
    win16 hosts: SuperTCP or NetManage Chameleon
  </int>
</enum>

<enum name="HttpAuthCount" type="int">
  <int value="0" label="Basic Start"/>
  <int value="1" label="Basic Reject"/>
  <int value="2" label="Digest Start"/>
  <int value="3" label="Digest Reject"/>
  <int value="4" label="NTLM Start"/>
  <int value="5" label="NTLM Reject"/>
  <int value="6" label="Negotiate Start"/>
  <int value="7" label="Negotiate Reject"/>
</enum>

<enum name="HttpAuthResource" type="int">
  <int value="0" label="Top Page Allowed"/>
  <int value="1" label="Same-domain Sub-resource Allowed"/>
  <int value="2" label="Cross-domain Sub-resource Blocked"/>
  <int value="3" label="Cross-domain Sub-resource Allowed"/>
</enum>

<enum name="HttpAuthTarget" type="int">
  <int value="0" label="Basic Proxy"/>
  <int value="1" label="Basic Secure Proxy"/>
  <int value="2" label="Basic Server"/>
  <int value="3" label="Basic Secure Server"/>
  <int value="4" label="Digest Proxy"/>
  <int value="5" label="Digest Secure Proxy"/>
  <int value="6" label="Digest Server"/>
  <int value="7" label="Digest Secure Server"/>
  <int value="8" label="NTLM Proxy"/>
  <int value="9" label="NTLM Secure Proxy"/>
  <int value="10" label="NTLM Server"/>
  <int value="11" label="NTLM Secure Server"/>
  <int value="12" label="Negotiate Proxy"/>
  <int value="13" label="Negotiate Secure Proxy"/>
  <int value="14" label="Negotiate Server"/>
  <int value="15" label="Negotiate Secure Server"/>
</enum>

<enum name="HttpSocketType" type="int">
  <int value="0" label="UNUSED">newly connected socket</int>
  <int value="1" label="UNUSED_IDLE">
    connected unused socket (idle prior to use)
  </int>
  <int value="2" label="REUSED_IDLE">previously used (keep-alive?) socket</int>
</enum>

<enum name="IDBLevelDBBackingStoreInternalErrorType" type="int">
  <int value="0" label="IDBLevelDBBackingStoreReadError">
    IndexedDB encountered an error attempting to read or decode a value from the
    leveldb backing store, indicative of corruption or I/O error. Unused as of
    M26.
  </int>
  <int value="1" label="IDBLevelDBBackingStoreWriteError">
    IndexeDB encountered an error attempting to write or commit a value to the
    leveldb backing store, indicative of I/O error. Unused as of M26.
  </int>
  <int value="2" label="IDBLevelDBBackingStoreConsistencyError">
    IndexedDB encountered a consistency error in the leveldb backing store,
    indicative of corruption or an coding error. Unused as of M26.
  </int>
  <int value="3" label="FindKeyInIndex"/>
  <int value="4" label="GetIDBDatabaseMetaData"/>
  <int value="5" label="GetIndexes"/>
  <int value="6" label="GetKeyGeneratorCurrentNumber"/>
  <int value="7" label="GetObjectStores"/>
  <int value="8" label="GetRecord"/>
  <int value="9" label="KeyExistsInObjectStore"/>
  <int value="10" label="LoadCurrentRow"/>
  <int value="11" label="SetupMetadata"/>
  <int value="12" label="GetPrimaryKeyViaIndex"/>
  <int value="13" label="KeyExistsInIndex"/>
  <int value="14" label="VersionExists"/>
  <int value="15" label="DeleteObjectStore"/>
  <int value="16" label="SetMaxObjectStoreId"/>
  <int value="17" label="SetMaxIndexId"/>
  <int value="18" label="GetNewDatabaseId"/>
  <int value="19" label="GetNewVersionNumber"/>
  <int value="20" label="CreateIDBDatabaseMetaData"/>
  <int value="21" label="DeleteDatabase"/>
  <int value="22" label="TransactionCommit"/>
</enum>

<enum name="IDBLevelDBBackingStoreOpenResult" type="int">
  <int value="0" label="OpenMemorySuccess">
    An in-memory backing store was opened successfully.
  </int>
  <int value="1" label="OpenSuccess">
    An on-disk backing store was opened successfully.
  </int>
  <int value="2" label="OpenFailedDirectory">
    An on-disk backing store could not be opened or created because the
    directory could not be opened or created. Cleanup will not be attempted.
  </int>
  <int value="3" label="OpenFailedUnknownSchema">
    An on-disk backing store was opened but had an unknown schema version, due
    to corruption or reverting to a previous version of Chrome. Cleanup will be
    attempted.
  </int>
  <int value="4" label="OpenCleanupDestroyFailed">
    An on-disk backing store failed to open; cleanup was attempted but the
    database could not be destroyed.
  </int>
  <int value="5" label="OpenCleanupReopenFailed">
    An on-disk backing store failed to open; cleanup was attempted but
    re-opening the database failed.
  </int>
  <int value="6" label="OpenCleanupReopenSuccess">
    An on-disk backing store failed to open; cleanup was attempted and the
    database was then opened successfully.
  </int>
  <int value="7" label="OpenFailedIOErrCheckingSchema">
    An on-disk backing store was opened but leveldb failed to read the schema
    version.
  </int>
  <int value="8" label="OpenFailedUnknownErr"/>
  <int value="9" label="OpenMemoryFailed">
    An in-memory backing store failed to open.
  </int>
  <int value="10" label="OpenNonASCII">
    A database with non-ascii characters in its path was opened (with either
    success or failure).
  </int>
</enum>

<enum name="ImporterType" type="int">
  <int value="0" label="Unknown"/>
  <int value="1" label="IMPORTER_METRICS_IE">IE (Windows-only)</int>
  <int value="2" label="IMPORTER_METRICS_FIREFOX2">Firefox 2</int>
  <int value="3" label="IMPORTER_METRICS_FIREFOX3">Firefox 3 (and later)</int>
  <int value="4" label="IMPORTER_METRICS_SAFARI">Safari (Mac-only)</int>
  <int value="5" label="IMPORTER_METRICS_GOOGLE_TOOLBAR5">Google Toolbar</int>
  <int value="6" label="IMPORTER_METRICS_BOOKMARKS_FILE">
    A bookmarks.html file
  </int>
</enum>

<enum name="IndexedDatabaseMethods" type="int">
  <int value="0" label="CreateObjectStore()"/>
  <int value="1" label="DeleteObjectStore()"/>
  <int value="2" label="Transaction()"/>
  <int value="3" label="DeleteDatabase()"/>
  <int value="4" label="Open()"/>
</enum>

<enum name="IPV6ProbeResult" type="int">
  <int value="0" label="IPV6_CANNOT_CREATE_SOCKETS"/>
  <int value="1" label="IPV6_CAN_CREATE_SOCKETS"/>
  <int value="2" label="IPV6_GETIFADDRS_FAILED">
    getifaddrs or GetAdaptersAddresses failed
  </int>
  <int value="3" label="IPV6_GLOBAL_ADDRESS_MISSING"/>
  <int value="4" label="IPV6_GLOBAL_ADDRESS_PRESENT"/>
  <int value="5" label="IPV6_INTERFACE_ARRAY_TOO_SHORT"/>
</enum>

<enum name="LevelDBErrorCount" type="int">
  <int value="1" label="Failure"/>
</enum>

<enum name="LevelDBErrorTypes" type="int">
  <int value="0" label="NotFound"/>
  <int value="1" label="Corruption"/>
  <int value="2" label="IOError"/>
  <int value="3" label="Other"/>
</enum>

<enum name="LevelDBIOErrorMethods" type="int">
  <int value="0" label="SequentialFileRead"/>
  <int value="1" label="SequentialFileSkip"/>
  <int value="2" label="RandomAccessFileRead"/>
  <int value="3" label="WritableFileAppend"/>
  <int value="4" label="WritableFileClose"/>
  <int value="5" label="WritableFileFlush"/>
  <int value="6" label="WritableFileSync"/>
  <int value="7" label="NewSequentialFile"/>
  <int value="8" label="NewRandomAccessFile"/>
  <int value="9" label="NewWritableFile"/>
  <int value="10" label="DeleteFile"/>
  <int value="11" label="CreateDir"/>
  <int value="12" label="DeleteDir"/>
  <int value="13" label="GetFileSize"/>
  <int value="14" label="Renamefile"/>
  <int value="15" label="LockFile"/>
  <int value="16" label="UnlockFile"/>
  <int value="17" label="GetTestDirectory"/>
  <int value="18" label="NewLogger"/>
</enum>

<enum name="LoadType" type="int">
  <int value="0" label="UNDEFINED_LOAD">Not yet initialized</int>
  <int value="1" label="RELOAD">User pressed reload</int>
  <int value="2" label="HISTORY_LOAD">Back or forward</int>
  <int value="3" label="NORMAL_LOAD">User entered URL, or omnibox search</int>
  <int value="4" label="LINK_LOAD">(deprecated) Included next 4 categories</int>
  <int value="5" label="LINK_LOAD_NORMAL">Commonly following of link</int>
  <int value="6" label="LINK_LOAD_RELOAD">JS/link directed reload</int>
  <int value="7" label="LINK_LOAD_CACHE_STALE_OK">
    back/forward or encoding change
  </int>
  <int value="8" label="LINK_LOAD_CACHE_ONLY">
    Allow stale data (avoid doing a re-post)
  </int>
  <int value="9" label="PRERENDER_LOAD">Speculative prerendering of a page</int>
</enum>

<enum name="NavigationScheme" type="int">
  <int value="0" label="(Unknown)"/>
  <int value="1" label="http"/>
  <int value="2" label="https"/>
  <int value="3" label="file"/>
  <int value="4" label="ftp"/>
  <int value="5" label="data"/>
  <int value="6" label="javascript"/>
  <int value="7" label="about"/>
  <int value="8" label="chrome"/>
</enum>

<enum name="NetErrorCodes" type="int">
  <int value="0" label="OK"/>
  <int value="1" label="IO_PENDING"/>
  <int value="2" label="FAILED"/>
  <int value="3" label="ABORTED"/>
  <int value="4" label="INVALID_ARGUMENT"/>
  <int value="5" label="INVALID_HANDLE"/>
  <int value="6" label="FILE_NOT_FOUND"/>
  <int value="7" label="TIMED_OUT"/>
  <int value="8" label="FILE_TOO_BIG"/>
  <int value="9" label="UNEXPECTED"/>
  <int value="10" label="ACCESS_DENIED"/>
  <int value="11" label="NOT_IMPLEMENTED"/>
  <int value="12" label="INSUFFICIENT_RESOURCES"/>
  <int value="13" label="OUT_OF_MEMORY"/>
  <int value="14" label="UPLOAD_FILE_CHANGED"/>
  <int value="15" label="SOCKET_NOT_CONNECTED"/>
  <int value="16" label="FILE_EXISTS"/>
  <int value="17" label="FILE_PATH_TOO_LONG"/>
  <int value="18" label="FILE_NO_SPACE"/>
  <int value="19" label="FILE_VIRUS_INFECTED"/>
  <int value="20" label="BLOCKED_BY_CLIENT"/>
  <int value="100" label="CONNECTION_CLOSED"/>
  <int value="101" label="CONNECTION_RESET"/>
  <int value="102" label="CONNECTION_REFUSED"/>
  <int value="103" label="CONNECTION_ABORTED"/>
  <int value="104" label="CONNECTION_FAILED"/>
  <int value="105" label="NAME_NOT_RESOLVED"/>
  <int value="106" label="INTERNET_DISCONNECTED"/>
  <int value="107" label="SSL_PROTOCOL_ERROR"/>
  <int value="108" label="ADDRESS_INVALID"/>
  <int value="109" label="ADDRESS_UNREACHABLE"/>
  <int value="110" label="SSL_CLIENT_AUTH_CERT_NEEDED"/>
  <int value="111" label="TUNNEL_CONNECTION_FAILED"/>
  <int value="112" label="NO_SSL_VERSIONS_ENABLED"/>
  <int value="113" label="SSL_VERSION_OR_CIPHER_MISMATCH"/>
  <int value="114" label="SSL_RENEGOTIATION_REQUESTED"/>
  <int value="115" label="PROXY_AUTH_UNSUPPORTED"/>
  <int value="116" label="CERT_ERROR_IN_SSL_RENEGOTIATION"/>
  <int value="117" label="BAD_SSL_CLIENT_AUTH_CERT"/>
  <int value="118" label="CONNECTION_TIMED_OUT"/>
  <int value="119" label="HOST_RESOLVER_QUEUE_TOO_LARGE"/>
  <int value="120" label="SOCKS_CONNECTION_FAILED"/>
  <int value="121" label="SOCKS_CONNECTION_HOST_UNREACHABLE"/>
  <int value="122" label="NPN_NEGOTIATION_FAILED"/>
  <int value="123" label="SSL_NO_RENEGOTIATION"/>
  <int value="124" label="WINSOCK_UNEXPECTED_WRITTEN_BYTES"/>
  <int value="125" label="SSL_DECOMPRESSION_FAILURE_ALERT"/>
  <int value="126" label="SSL_BAD_RECORD_MAC_ALERT"/>
  <int value="127" label="PROXY_AUTH_REQUESTED"/>
  <int value="128" label="SSL_UNSAFE_NEGOTIATION"/>
  <int value="129" label="SSL_WEAK_SERVER_EPHEMERAL_DH_KEY"/>
  <int value="130" label="PROXY_CONNECTION_FAILED"/>
  <int value="131" label="MANDATORY_PROXY_CONFIGURATION_FAILED"/>
  <int value="132" label="ESET_ANTI_VIRUS_SSL_INTERCEPTION"/>
  <int value="133" label="PRECONNECT_MAX_SOCKET_LIMIT"/>
  <int value="134" label="SSL_CLIENT_AUTH_PRIVATE_KEY_ACCESS_DENIED"/>
  <int value="135" label="SSL_CLIENT_AUTH_CERT_NO_PRIVATE_KEY"/>
  <int value="136" label="PROXY_CERTIFICATE_INVALID"/>
  <int value="137" label="NAME_RESOLUTION_FAILED"/>
  <int value="138" label="NETWORK_ACCESS_DENIED"/>
  <int value="139" label="TEMPORARILY_THROTTLED"/>
  <int value="140" label="HTTPS_PROXY_TUNNEL_RESPONSE"/>
  <int value="141" label="SSL_CLIENT_AUTH_SIGNATURE_FAILED"/>
  <int value="142" label="MSG_TOO_BIG"/>
  <int value="143" label="KASPERSKY_ANTI_VIRUS_SSL_INTERCEPTION"/>
  <int value="144" label="LIMIT_VIOLATION"/>
  <int value="145" label="WS_PROTOCOL_ERROR"/>
  <int value="146" label="PROTOCOL_SWITCHED"/>
  <int value="147" label="ADDRESS_IN_USE"/>
  <int value="148" label="SSL_HANDSHAKE_NOT_COMPLETED"/>
  <int value="149" label="SSL_BAD_PEER_PUBLIC_KEY"/>
  <int value="150" label="SSL_PINNED_KEY_NOT_IN_CERT_CHAIN"/>
  <int value="151" label="CLIENT_AUTH_CERT_TYPE_UNSUPPORTED"/>
  <int value="152" label="ORIGIN_BOUND_CERT_GENERATION_TYPE_MISMATCH"/>
  <int value="200" label="CERT_COMMON_NAME_INVALID"/>
  <int value="201" label="CERT_DATE_INVALID"/>
  <int value="202" label="CERT_AUTHORITY_INVALID"/>
  <int value="203" label="CERT_CONTAINS_ERRORS"/>
  <int value="204" label="CERT_NO_REVOCATION_MECHANISM"/>
  <int value="205" label="CERT_UNABLE_TO_CHECK_REVOCATION"/>
  <int value="206" label="CERT_REVOKED"/>
  <int value="207" label="CERT_INVALID"/>
  <int value="208" label="CERT_WEAK_SIGNATURE_ALGORITHM"/>
  <int value="209" label="CERT_NOT_IN_DNS"/>
  <int value="210" label="CERT_NON_UNIQUE_NAME"/>
  <int value="211" label="CERT_WEAK_KEY"/>
  <int value="300" label="INVALID_URL"/>
  <int value="301" label="DISALLOWED_URL_SCHEME"/>
  <int value="302" label="UNKNOWN_URL_SCHEME"/>
  <int value="310" label="TOO_MANY_REDIRECTS"/>
  <int value="311" label="UNSAFE_REDIRECT"/>
  <int value="312" label="UNSAFE_PORT"/>
  <int value="320" label="INVALID_RESPONSE"/>
  <int value="321" label="INVALID_CHUNKED_ENCODING"/>
  <int value="322" label="METHOD_NOT_SUPPORTED"/>
  <int value="323" label="UNEXPECTED_PROXY_AUTH"/>
  <int value="324" label="EMPTY_RESPONSE"/>
  <int value="325" label="RESPONSE_HEADERS_TOO_BIG"/>
  <int value="326" label="PAC_STATUS_NOT_OK"/>
  <int value="327" label="PAC_SCRIPT_FAILED"/>
  <int value="328" label="REQUEST_RANGE_NOT_SATISFIABLE"/>
  <int value="329" label="MALFORMED_IDENTITY"/>
  <int value="330" label="CONTENT_DECODING_FAILED"/>
  <int value="331" label="NETWORK_IO_SUSPENDED"/>
  <int value="332" label="SYN_REPLY_NOT_RECEIVED"/>
  <int value="333" label="ENCODING_CONVERSION_FAILED"/>
  <int value="334" label="UNRECOGNIZED_FTP_DIRECTORY_LISTING_FORMAT"/>
  <int value="335" label="INVALID_SPDY_STREAM"/>
  <int value="336" label="NO_SUPPORTED_PROXIES"/>
  <int value="337" label="SPDY_PROTOCOL_ERROR"/>
  <int value="338" label="INVALID_AUTH_CREDENTIALS"/>
  <int value="339" label="UNSUPPORTED_AUTH_SCHEME"/>
  <int value="340" label="ENCODING_DETECTION_FAILED"/>
  <int value="341" label="MISSING_AUTH_CREDENTIALS"/>
  <int value="342" label="UNEXPECTED_SECURITY_LIBRARY_STATUS"/>
  <int value="343" label="MISCONFIGURED_AUTH_ENVIRONMENT"/>
  <int value="344" label="UNDOCUMENTED_SECURITY_LIBRARY_STATUS"/>
  <int value="345" label="RESPONSE_BODY_TOO_BIG_TO_DRAIN"/>
  <int value="346" label="RESPONSE_HEADERS_MULTIPLE_CONTENT_LENGTH"/>
  <int value="347" label="INCOMPLETE_SPDY_HEADERS"/>
  <int value="348" label="PAC_NOT_IN_DHCP"/>
  <int value="349" label="RESPONSE_HEADERS_MULTIPLE_CONTENT_DISPOSITION"/>
  <int value="350" label="RESPONSE_HEADERS_MULTIPLE_LOCATION"/>
  <int value="351" label="SPDY_SERVER_REFUSED_STREAM"/>
  <int value="352" label="SPDY_PING_FAILED"/>
  <int value="353" label="PIPELINE_EVICTION"/>
  <int value="354" label="CONTENT_LENGTH_MISMATCH"/>
  <int value="355" label="INCOMPLETE_CHUNKED_ENCODING"/>
  <int value="400" label="CACHE_MISS"/>
  <int value="401" label="CACHE_READ_FAILURE"/>
  <int value="402" label="CACHE_WRITE_FAILURE"/>
  <int value="403" label="CACHE_OPERATION_NOT_SUPPORTED"/>
  <int value="404" label="CACHE_OPEN_FAILURE"/>
  <int value="405" label="CACHE_CREATE_FAILURE"/>
  <int value="406" label="CACHE_RACE"/>
  <int value="501" label="INSECURE_RESPONSE"/>
  <int value="502" label="NO_PRIVATE_KEY_FOR_CERT"/>
  <int value="503" label="ADD_USER_CERT_FAILED"/>
  <int value="601" label="FTP_FAILED"/>
  <int value="602" label="FTP_SERVICE_UNAVAILABLE"/>
  <int value="603" label="FTP_TRANSFER_ABORTED"/>
  <int value="604" label="FTP_FILE_BUSY"/>
  <int value="605" label="FTP_SYNTAX_ERROR"/>
  <int value="606" label="FTP_COMMAND_NOT_SUPPORTED"/>
  <int value="607" label="FTP_BAD_COMMAND_SEQUENCE"/>
  <int value="701" label="PKCS12_IMPORT_BAD_PASSWORD"/>
  <int value="702" label="PKCS12_IMPORT_FAILED"/>
  <int value="703" label="IMPORT_CA_CERT_NOT_CA"/>
  <int value="704" label="IMPORT_CERT_ALREADY_EXISTS"/>
  <int value="705" label="IMPORT_CA_CERT_FAILED"/>
  <int value="706" label="IMPORT_SERVER_CERT_FAILED"/>
  <int value="707" label="PKCS12_IMPORT_INVALID_MAC"/>
  <int value="708" label="PKCS12_IMPORT_INVALID_FILE"/>
  <int value="709" label="PKCS12_IMPORT_UNSUPPORTED"/>
  <int value="710" label="KEY_GENERATION_FAILED"/>
  <int value="711" label="ORIGIN_BOUND_CERT_GENERATION_FAILED"/>
  <int value="712" label="PRIVATE_KEY_EXPORT_FAILED"/>
  <int value="800" label="DNS_MALFORMED_RESPONSE"/>
  <int value="801" label="DNS_SERVER_REQUIRES_TCP"/>
  <int value="802" label="DNS_SERVER_FAILED"/>
  <int value="803" label="DNS_TIMED_OUT"/>
  <int value="804" label="DNS_CACHE_MISS"/>
  <int value="805" label="DNS_SEARCH_EMPTY"/>
</enum>

<enum name="NetPreconnectUtilization" type="int">
  <int value="0" label="non-speculative, never connected"/>
  <int value="1" label="non-speculative, never used"/>
  <int value="2" label="non-speculative and used"/>
  <int value="3" label="omnibox never connected"/>
  <int value="4" label="omnibox never used"/>
  <int value="5" label="omnibox and used"/>
  <int value="6" label="subresource never connected"/>
  <int value="7" label="subresource never used"/>
  <int value="8" label="subresource and used"/>
</enum>

<enum name="OmniboxAggressiveHistoryURLProviderFieldTrialBeacon" type="int">
  <int value="0" label="disabled by flags"/>
  <int value="1" label="enabled by flags"/>
  <int value="2" label="auto, not in trial"/>
  <int value="3" label="auto, disabled in trial"/>
  <int value="4" label="auto, enabled in trial"/>
</enum>

<enum name="OmniboxEnteredKeywordMode" type="int">
  <int value="0" label="via tab"/>
  <int value="1" label="via space at end"/>
  <int value="2" label="via space in middle"/>
</enum>

<enum name="OmniboxSearchEngine" type="int">
  <int value="0" label="Unknown"/>
  <int value="1" label="Google"/>
  <int value="2" label="Yahoo!"/>
  <int value="3" label="Bing"/>
  <int value="4" label="Ask"/>
  <int value="5" label="Yahoo! Quebec"/>
  <int value="6" label="OK.hu"/>
  <int value="7" label="Bing French and Arabic"/>
  <int value="11" label="Yamli"/>
  <int value="12" label="Araby"/>
  <int value="13" label="Maktoob"/>
  <int value="14" label="Masrawy"/>
  <int value="15" label="Yandex"/>
  <int value="16" label="Rambler"/>
  <int value="17" label="TUT.BY"/>
  <int value="18" label="hispavista"/>
  <int value="19" label="Jabse"/>
  <int value="20" label="NUR.KZ"/>
  <int value="21" label="Baidu"/>
  <int value="22" label="search.ch"/>
  <int value="23" label="goo"/>
  <int value="24" label="Pogodak!"/>
  <int value="25" label="Seznam"/>
  <int value="26" label="Centrum"/>
  <int value="27" label="Atlas"/>
  <int value="28" label="Jubii"/>
  <int value="29" label="Eniro"/>
  <int value="30" label="NetSprint"/>
  <int value="32" label="diri"/>
  <int value="33" label="Custom"/>
  <int value="35" label="AOL"/>
  <int value="37" label="Rediff"/>
  <int value="38" label="guruji"/>
  <int value="40" label="GO.com"/>
  <int value="41" label="Rednano"/>
  <int value="44" label="NETI"/>
  <int value="45" label="DELFI"/>
  <int value="46" label="Fonecta 02.fi"/>
  <int value="51" label="search.ch"/>
  <int value="54" label="in.gr"/>
  <int value="55" label="Walla!"/>
  <int value="59" label="leit.is"/>
  <int value="62" label="Virgilio"/>
  <int value="63" label="Libero"/>
  <int value="67" label="Naver"/>
  <int value="68" label="Daum"/>
  <int value="69" label="Nate"/>
  <int value="71" label="LATNE"/>
  <int value="72" label="ABC S.k"/>
  <int value="73" label="Kvasir"/>
  <int value="75" label="Onet.pl"/>
  <int value="76" label="Wirtualna Polska"/>
  <int value="77" label="SAPO"/>
  <int value="82" label="UOL Busca"/>
  <int value="83" label="@MAIL.RU"/>
  <int value="85" label="Zoznam"/>
  <int value="87" label="Najdi.si"/>
  <int value="89" label="AltaVista"/>
  <int value="90" label="Terra"/>
  <int value="99" label="Spray"/>
  <int value="100" label="Sanook!"/>
  <int value="101" label="MYNET"/>
</enum>

<enum name="OmniboxSuggestRequests" type="int">
  <int value="1" label="requests sent"/>
  <int value="2" label="requests invalidated"/>
  <int value="3" label="(non-invalidated) replies received"/>
</enum>

<enum name="OSAgnosticErrno" type="int">
  <summary>Errno values with the same meanings on Mac/Win/Linux.</summary>
  <int value="0" label="0">No error</int>
  <int value="1" label="EPERM">Operation not permitted</int>
  <int value="2" label="ENOENT">No such file or directory</int>
  <int value="3" label="ESRCH">No such process</int>
  <int value="4" label="EINTR">Interrupted function call</int>
  <int value="5" label="EIO">Input/output error</int>
  <int value="6" label="ENXIO">No such device or address</int>
  <int value="7" label="E2BIG">Arg list too long</int>
  <int value="8" label="ENOEXEC">Exec format error</int>
  <int value="9" label="EBADF">Bad file descriptor</int>
  <int value="10" label="ECHILD">No child processes</int>
  <int value="11" label="EDEADLK">Resource deadlock avoided</int>
  <int value="12" label="ENOMEM">Cannot allocate memory</int>
  <int value="13" label="EACCES">Permission denied</int>
  <int value="14" label="EFAULT">Bad address</int>
  <int value="15" label="ENOTBLK">Not a block device</int>
  <int value="16" label="EBUSY">Resource busy</int>
  <int value="17" label="EEXIST">File exists</int>
  <int value="18" label="EXDEV">Improper link</int>
  <int value="19" label="ENODEV">Operation not supported by device</int>
  <int value="20" label="ENOTDIR">Not a directory</int>
  <int value="21" label="EISDIR">Is a directory</int>
  <int value="22" label="EINVAL">Invalid argument</int>
  <int value="23" label="ENFILE">Too many open files in system</int>
  <int value="24" label="EMFILE">Too many open files</int>
  <int value="25" label="ENOTTY">Inappropriate ioctl for device</int>
  <int value="26" label="ETXTBSY">Text file busy</int>
  <int value="27" label="EFBIG">File too large</int>
  <int value="28" label="ENOSPC">Device out of space</int>
  <int value="29" label="ESPIPE">Illegal seek</int>
  <int value="30" label="EROFS">Read-only file system</int>
  <int value="31" label="EMLINK">Too many links</int>
  <int value="32" label="EPIPE">Broken pipe</int>
  <int value="33" label="EDOM">Numerical argument out of domain</int>
  <int value="34" label="ERANGE">Numerical result out of range</int>
</enum>

<enum name="PlatformFileError" type="int">
  <int value="0" label="OK"/>
  <int value="1" label="FAILED"/>
  <int value="2" label="IN_USE"/>
  <int value="3" label="EXISTS"/>
  <int value="4" label="NOT_FOUND"/>
  <int value="5" label="ACCESS_DENIED"/>
  <int value="6" label="TOO_MANY_OPENED"/>
  <int value="7" label="NO_MEMORY"/>
  <int value="8" label="NO_SPACE"/>
  <int value="9" label="NOT_A_DIRECTORY"/>
  <int value="10" label="INVALID_OPERATION"/>
  <int value="11" label="SECURITY"/>
  <int value="12" label="ABORT"/>
  <int value="13" label="NOT_A_FILE"/>
  <int value="14" label="NOT_EMPTY"/>
  <int value="15" label="INVALID_URL"/>
</enum>

<enum name="PreconnectMotivation" type="int">
  <int value="0" label="MOUSE_OVER_MOTIVATED"/>
  <int value="1" label="PAGE_SCAN_MOTIVATED"/>
  <int value="2" label="UNIT_TEST_MOTIVATED"/>
  <int value="3" label="LINKED_MAX_MOTIVATED"/>
  <int value="4" label="OMNIBOX_MOTIVATED"/>
  <int value="5" label="STARTUP_LIST_MOTIVATED"/>
  <int value="6" label="EARLY_LOAD_MOTIVATED"/>
  <int value="7" label="NO_PREFETCH_MOTIVATION"/>
  <int value="8" label="STATIC_REFERAL_MOTIVATED"/>
  <int value="9" label="LEARNED_REFERAL_MOTIVATED"/>
  <int value="10" label="SELF_REFERAL_MOTIVATED"/>
</enum>

<enum name="PreconnectSubresourceEval" type="int">
  <int value="0" label="PRECONNECTION"/>
  <int value="1" label="PRERESOLUTION"/>
  <int value="2" label="TOO_NEW"/>
</enum>

<enum name="PrerenderFinalStatus" type="int">
  <int value="0" label="USED"/>
  <int value="1" label="TIMED_OUT"/>
  <int value="2" label="EVICTED"/>
  <int value="3" label="MANAGER_SHUTDOWN"/>
  <int value="4" label="CLOSED"/>
  <int value="5" label="CREATE_NEW_WINDOW"/>
  <int value="6" label="PROFILE_DESTROYED"/>
  <int value="7" label="APP_TERMINATING"/>
  <int value="8" label="JAVASCRIPT_ALERT"/>
  <int value="9" label="AUTH_NEEDED"/>
  <int value="10" label="HTTPS"/>
  <int value="11" label="DOWNLOAD"/>
  <int value="12" label="MEMORY_LIMIT_EXCEEDED"/>
  <int value="13" label="JS_OUT_OF_MEMORY"/>
  <int value="14" label="RENDERER_UNRESPONSIVE"/>
  <int value="15" label="TOO_MANY_PROCESSES"/>
  <int value="16" label="RATE_LIMIT_EXCEEDED"/>
  <int value="17" label="PENDING_SKIPPED"/>
  <int value="18" label="CONTROL_GROUP"/>
  <int value="19" label="HTML5_MEDIA"/>
  <int value="20" label="SOURCE_RENDER_VIEW_CLOSED"/>
  <int value="21" label="RENDERER_CRASHED"/>
  <int value="22" label="UNSUPPORTED_SCHEME"/>
  <int value="23" label="INVALID_HTTP_METHOD"/>
  <int value="24" label="WINDOW_PRINT"/>
  <int value="25" label="RECENTLY_VISITED"/>
  <int value="26" label="WINDOW_OPENER"/>
  <int value="27" label="PAGE_ID_CONFLICT"/>
  <int value="28" label="SAFE_BROWSING"/>
  <int value="29" label="FRAGMENT_MISMATCH"/>
  <int value="30" label="SSL_CLIENT_CERTIFICATE_REQUESTED"/>
  <int value="31" label="CACHE_OR_HISTORY_CLEARED"/>
  <int value="32" label="CANCELLED"/>
  <int value="33" label="SSL_ERROR"/>
  <int value="34" label="CROSS_SITE_NAVIGATION_PENDING"/>
  <int value="35" label="DEVTOOLS_ATTACHED"/>
  <int value="36" label="SESSION_STORAGE_NAMESPACE_MISMATCH"/>
  <int value="37" label="NO_USE_GROUP"/>
  <int value="38" label="MATCH_COMPLETE_DUMMY"/>
  <int value="39" label="DUPLICATE"/>
  <int value="40" label="OPEN_URL"/>
  <int value="41" label="WOULD_HAVE_BEEN_USED"/>
  <int value="42" label="REGISTER_PROTOCOL_HANDLER"/>
</enum>

<enum name="PrerenderLocalPredictorEvents" type="int">
  <int value="0" label="EVENT_CONSTRUCTED"/>
  <int value="1" label="EVENT_INIT_SCHEDULED"/>
  <int value="2" label="EVENT_INIT_STARTED"/>
  <int value="3" label="EVENT_INIT_FAILED_NO_HISTORY"/>
  <int value="4" label="EVENT_INIT_SUCCEEDED"/>
  <int value="5" label="EVENT_ADD_VISIT"/>
  <int value="6" label="EVENT_ADD_VISIT_INITIALIZED"/>
  <int value="7" label="EVENT_ADD_VISIT_PRERENDER_IDENTIFIED"/>
  <int value="8" label="EVENT_ADD_VISIT_RELEVANT_TRANSITION"/>
  <int value="9" label="EVENT_ADD_VISIT_IDENTIFIED_PRERENDER_CANDIDATE"/>
  <int value="10" label="EVENT_ADD_VISIT_PRERENDERING"/>
  <int value="11" label="EVENT_GOT_PRERENDER_URL"/>
  <int value="12" label="EVENT_ERROR_NO_PRERENDER_URL_FOR_PLT"/>
</enum>

<enum name="ProtocolVersion" type="int">
  <int value="0" label="UNKNOWN"/>
  <int value="1" label="HTTP 1.1"/>
  <int value="2" label="SPDY 1.0"/>
  <int value="3" label="SPDY 2.0"/>
  <int value="4" label="SPDY 2.1"/>
  <int value="5" label="SPDY 3.0"/>
</enum>

<enum name="ProxyStatus" type="int">
  <int value="0" label="PROXY_STATUS_IGNORED"/>
  <int value="1" label="PROXY_UNINITIALIZED"/>
  <int value="2" label="PROXY_NOT_USED"/>
  <int value="3" label="PROXY_PAC_RESOLVER"/>
  <int value="4" label="PROXY_HAS_RULES"/>
</enum>

<enum name="PublicKeyPinFailedDomain" type="int">
  <int value="0" label="DOMAIN_NOT_PINNED"/>
  <int value="1" label="DOMAIN_GOOGLE_COM"/>
  <int value="2" label="DOMAIN_ANDROID_COM"/>
  <int value="3" label="DOMAIN_GOOGLE_ANALYTICS_COM"/>
  <int value="4" label="DOMAIN_GOOGLEPLEX_COM"/>
  <int value="5" label="DOMAIN_YTIMG_COM"/>
  <int value="6" label="DOMAIN_GOOGLEUSERCONTENT_COM"/>
  <int value="7" label="DOMAIN_YOUTUBE_COM"/>
  <int value="8" label="DOMAIN_GOOGLEAPIS_COM"/>
  <int value="9" label="DOMAIN_GOOGLEADSERVICES_COM"/>
  <int value="10" label="DOMAIN_GOOGLECODE_COM"/>
  <int value="11" label="DOMAIN_APPSPOT_COM"/>
  <int value="12" label="DOMAIN_GOOGLESYNDICATION_COM"/>
  <int value="13" label="DOMAIN_DOUBLECLICK_NET"/>
  <int value="14" label="DOMAIN_GSTATIC_COM"/>
  <int value="15" label="DOMAIN_GMAIL_COM"/>
  <int value="16" label="DOMAIN_GOOGLEMAIL_COM"/>
  <int value="17" label="DOMAIN_GOOGLEGROUPS_COM"/>
  <int value="18" label="DOMAIN_TORPROJECT_ORG"/>
  <int value="19" label="DOMAIN_TWITTER_COM"/>
  <int value="20" label="DOMAIN_TWIMG_COM"/>
  <int value="21" label="DOMAIN_AKAMAIHD_NET"/>
  <int value="22" label="DOMAIN_NUM_EVENTS"/>
</enum>

<enum name="SocketStreamConnectionType" type="int">
  <int value="0" label="none"/>
  <int value="1" label="all connections"/>
  <int value="2" label="tunnel connections"/>
  <int value="3" label="socks connections"/>
  <int value="4" label="ssl connections"/>
</enum>

<enum name="SocketStreamProtocolType" type="int">
  <int value="0" label="unknown"/>
  <int value="1" label="ws"/>
  <int value="2" label="wss"/>
</enum>

<enum name="SpdyIPPoolDomainMatch" type="int">
  <int value="0" label="mismatch"/>
  <int value="1" label="match"/>
</enum>

<enum name="SpdyProtocolErrorDetails" type="int">
  <int value="0" label="No error"/>
  <int value="1" label="Invalid Control Frame"/>
  <int value="2" label="Control Frame Payload Too Large"/>
  <int value="3" label="Zlib Init Failure"/>
  <int value="4" label="Unsupported Version"/>
  <int value="5" label="Decompress Failure"/>
  <int value="6" label="Compress Failure"/>
  <int value="7" label="Credential Frame Corrupt"/>
  <int value="8" label="Invalid Data Frame Flags"/>
  <int value="9" label="Invalid Status Code"/>
  <int value="10" label="Protocol Error"/>
  <int value="11" label="Invalid Stream"/>
  <int value="12" label="Refused Stream"/>
  <int value="13" label="Unsupported Version"/>
  <int value="14" label="Cancel"/>
  <int value="15" label="Internal Error"/>
  <int value="16" label="Flow Control Error"/>
  <int value="17" label="Stream In Use"/>
  <int value="18" label="Stream Already Closed"/>
  <int value="19" label="Invalid Credentials"/>
  <int value="20" label="Frame Too Large"/>
  <int value="21" label="Unexpected Ping"/>
  <int value="22" label="Rst Stream For Non Active Stream"/>
  <int value="23" label="Spdy Compression Failure"/>
  <int value="24" label="Request For Secure Content Over Insecure Session"/>
  <int value="25" label="Protocol Error Syn Reply Not Received"/>
  <int value="26" label="Num Spdy Protocol Error Details"/>
</enum>

<enum name="SpdySessionGet" type="int">
  <int value="0" label="created new"/>
  <int value="1" label="found existing"/>
  <int value="2" label="found existing from IP Pool"/>
  <int value="3" label="imported from socket"/>
</enum>

<enum name="SpdySettingsReceived" type="int">
  <int value="0" label="not received"/>
  <int value="1" label="received"/>
</enum>

<enum name="SpdySettingsSent" type="int">
  <int value="0" label="not sent"/>
  <int value="1" label="sent"/>
</enum>

<enum name="TLSRenegotiationPatched" type="int">
  <int value="0" label="Not renegotiation patched"/>
  <int value="1" label="Renegotiation patched"/>
</enum>

<enum name="WalletErrors" type="int">
  <int value="0" label="Baseline: Issued request"/>
  <int value="1" label="Fatal error (deprecated)"/>
  <int value="2" label="Malformed response"/>
  <int value="3" label="Network error"/>
  <int value="4" label="Bad request"/>
  <int value="5" label="Internal error"/>
  <int value="6" label="Invalid params"/>
  <int value="7" label="Service unavailable"/>
  <int value="8" label="Spending limit exceeded"/>
  <int value="9" label="Unsupported API version"/>
  <int value="10" label="Unknown error"/>
</enum>

<enum name="WalletRequiredActions" type="int">
  <int value="0" label="Baseline: Issued request"/>
  <int value="1" label="Unknown"/>
  <int value="2" label="GAIA auth"/>
  <int value="3" label="Passive GAIA auth"/>
  <int value="4" label="Set up Wallet"/>
  <int value="5" label="Accept ToS"/>
  <int value="6" label="Update expiration date"/>
  <int value="7" label="Upgrade min address"/>
  <int value="8" label="Choose another instrument or address"/>
  <int value="9" label="Verify CVV"/>
  <int value="10" label="Invalid form field"/>
  <int value="11" label="Require phone number"/>
</enum>

</enums>

<!-- Field trials -->

<fieldtrials>

<fieldtrial name="AsyncSlowStart">
  <group name="AsyncSlowStart" label="Async Slow Start on"/>
  <group name="AsyncSlowStart_off" label="Async Slow Start off"/>
  <group name="AsyncSlowStart_on" label="Async Slow Start on"/>
  <affected-histogram name="Net.Transaction_Connected_New"/>
  <affected-histogram name="Renderer4.StartToFinish"/>
</fieldtrial>

<fieldtrial name="AutofillServerExperiments">
  <group name="ar06" label="Acceptance ratio: 0.6"/>
  <group name="ar1" label="Acceptance ratio: 1.0"/>
  <group name="ar2" label="Acceptance ratio: 2.0"/>
  <group name="ar4" label="Acceptance ratio: 4.0"/>
  <group name="ar04wr3fs4"
      label="Acceptance ratio: 0.4; winner lead ratio: 3.0; min form score: 4"/>
  <group name="ar05wlr15"
      label="Acceptance ratio: 0.5; winner lead ratio: 1.5"/>
  <group name="ar05wlr25"
      label="Acceptance ratio: 0.5; winner lead ratio: 2.5"/>
  <group name="ar05wr15fs5"
      label="Acceptance ratio: 0.5; winner lead ratio: 1.5; min form score: 5"/>
  <group name="fp05" label="Probability picker algorithm, p=0.5"/>
  <group name="fp025" label="Probability picker algorithm, p=0.25"/>
  <group name="fp05cc03"
      label="Probability picker algorithm, p=0.5; p_ccname=0.3"/>
  <group name="fp05cco03"
      label="Probability picker algorithm, p=0.5;
             p_ccname_given_other_cc_fields=0.3"/>
  <group name="fp05cco03cstd"
      label="Probability picker algorithm, p=0.5;
             p_ccname_given_other_cc_fields=0.3; with fallback to the default
             algorithm"/>
  <group name="fp05cc03e1"
      label="Probability picker algorithm, p=0.5 for cc and company name
             fields; p_ccname_given_other_cc_fields=0.3; with fallback to the
             default algorithm;"/>
  <group name="tbar1" label="Use only Toolbar upload data"/>
  <affected-histogram name="Autofill.Quality"/>
  <affected-histogram name="AutoFill.Quality"/>
  <affected-histogram name="Autofill.Quality.HeuristicType"/>
  <affected-histogram name="Autofill.Quality.HeuristicType.ByFieldType"/>
  <affected-histogram name="Autofill.Quality.PredictedType"/>
  <affected-histogram name="Autofill.Quality.PredictedType.ByFieldType"/>
  <affected-histogram name="Autofill.Quality.ServerType"/>
  <affected-histogram name="Autofill.Quality.ServerType.ByFieldType"/>
</fieldtrial>

<fieldtrial name="CacheListSize">
  <group name="CacheListSize_12" label="Control"/>
  <group name="CacheListSize_13" label="Extended deleted list (2x)"/>
  <group name="CacheListSize_14" label="Out of the experiment"/>
  <affected-histogram name="DiskCache.TotalIOTime"/>
  <affected-histogram name="Net.HttpJob.TotalTime"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCancel"/>
  <affected-histogram name="Net.HttpJob.TotalTimeNotCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeSuccess"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish"/>
  <affected-histogram name="PLT.BeginToFinish_HistoryLoad"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadCacheOnly"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadStaleOk"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
  <affected-histogram name="PLT.BeginToFinish_Reload"/>
</fieldtrial>

<fieldtrial name="CacheSensitivityAnalysis">
  <group name="No" label="Turned off"/>
  <group name="Control" label="Control group"/>
  <group name="ControlA" label="Control, Group A"/>
  <group name="ControlB" label="Control, Group B"/>
  <group name="100" label="100% slowdown"/>
  <group name="100A" label="100% slowdown, Group A"/>
  <group name="100B" label="100% slowdown, Group B"/>
  <group name="200A" label="200% slowdown, Group A"/>
  <group name="200B" label="200% slowdown, Group B"/>
  <group name="400A" label="400% slowdown, Group A"/>
  <group name="400B" label="400% slowdown, Group B"/>
  <affected-histogram name="Net.HttpJob.TotalTime"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCancel"/>
  <affected-histogram name="Net.HttpJob.TotalTimeNotCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeSuccess"/>
  <affected-histogram name="PLT.BeginToFinish_CacheSensitivity"/>
  <affected-histogram name="PLT.BeginToFinishDoc_CacheSensitivity"/>
  <affected-histogram name="PLT.BeginToFirstPaint_CacheSensitivity"/>
  <affected-histogram name="PLT.CommitToFirstPaint_CacheSensitivity"/>
</fieldtrial>

<fieldtrial name="CacheSensitivityHistograms">
  <group name="CacheSensitivity" label="Cache Sensivitiy Analysis"/>
  <affected-histogram name="PLT.BeginToFinish"/>
  <affected-histogram name="PLT.BeginToFinishDoc"/>
  <affected-histogram name="PLT.BeginToFirstPaint"/>
  <affected-histogram name="PLT.CommitToFirstPaint"/>
</fieldtrial>

<fieldtrial name="ConnCountImpact">
  <group name="conn_count_16" label="with 16 persistent connections per host"/>
  <group name="conn_count_4" label="with 4 persistent connections per host"/>
  <group name="conn_count_5" label="with 5 persistent connections per host"/>
  <group name="conn_count_6" label="with 6 persistent connections per host"/>
  <group name="conn_count_7" label="with 7 persistent connections per host"/>
  <group name="conn_count_8" label="with 8 persistent connections per host"/>
  <group name="conn_count_9" label="with 9 persistent connections per host"/>
  <affected-histogram name="Net.Transaction_Connected_New"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadStaleOk"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
  <affected-histogram name="Renderer4.Abandoned"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoadStaleOk"/>
  <affected-histogram name="Renderer4.BeginToFinish_NormalLoad"/>
</fieldtrial>

<fieldtrial name="ConnnectBackupJobs">
  <group name="ConnectBackupJobsEnabled"/>
  <group name="ConnectBackupJobsDisabled"/>
  <affected-histogram name="Net.PreconnectUtilization"/>
  <affected-histogram name="Net.PreconnectUtilization2"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
  <affected-histogram name="PLT.LoadType"/>
</fieldtrial>

<fieldtrial name="DnsImpact2">
  <group name="disabled_prefetch"
      label="DNS pre-resolving is disabled in these clients"/>
  <group name="disabled_prefetch_4_connections"
      label="DNS pre-resolving is disabled in these clients, and a maximum of
             4 connections per host was allowed"/>
  <group name="enabled_prefetch_4_connections"
      label="a maximum of 4 connections per host was allowed in these clients"/>
  <group name="parallel_4_prefetch"
      label="DNS pre-resolving was only doing 4 concurrent speculative
             resolutions in this test"/>
  <affected-histogram name="Net.Dns_Resolution_And_TCP_Connection_Latency"/>
  <affected-histogram name="Net.TCP_Connection_Idle_Sockets">
    <with-group name="disabled_prefetch"/>
    <with-group name="disabled_prefetch_4_connections"/>
    <with-group name="enabled_prefetch_4_connections"/>
  </affected-histogram>
  <affected-histogram name="Net.TCP_Connection_Latency"/>
  <affected-histogram name="Net.Transaction_Connected"/>
  <affected-histogram name="Net.Transaction_Connected_New"/>
  <affected-histogram name="Net.Transaction_Connected_New_b"/>
  <affected-histogram name="Net.Transaction_Connected_Under_10"/>
  <affected-histogram name="Net.Transaction_Latency"/>
  <affected-histogram name="Net.Transaction_Latency_b"/>
  <affected-histogram name="Net.Transaction_Latency_Total"/>
  <affected-histogram name="Net.Transaction_Latency_Total_New_Connection"/>
  <affected-histogram
      name="Net.Transaction_Latency_Total_New_Connection_Under_10"/>
  <affected-histogram name="Net.Transaction_Latency_Total_Under_10"/>
  <affected-histogram name="Net.Transaction_Latency_Under_10"/>
  <affected-histogram name="PLT.RequestToFinish">
    <with-group name="parallel_4_prefetch"/>
  </affected-histogram>
</fieldtrial>

<fieldtrial name="DnsImpact3">
  <group name="disabled_prefetch" label="with DNS pre-resolving disabled"/>
  <group name="parallel_4_prefetch"
      label="with only 4 concurrent speculative resolutions done in parallel"/>
  <affected-histogram name="Net.Transaction_Connected_New">
    <with-group name="disabled_prefetch"/>
  </affected-histogram>
  <affected-histogram name="Renderer2.FinishDocToFinish"/>
  <affected-histogram name="Renderer2.RequestToFinish"/>
  <affected-histogram name="Renderer2.RequestToFinish_L">
    <with-group name="disabled_prefetch"/>
  </affected-histogram>
  <affected-histogram name="Renderer2.RequestToFirstLayout"/>
  <affected-histogram name="Renderer2.RequestToStart"/>
  <affected-histogram name="Renderer2.StartToFinish"/>
  <affected-histogram name="Renderer2.StartToFinishDoc"/>
  <affected-histogram name="Renderer2.StartToFirstLayout"/>
  <affected-histogram name="Renderer4.RequestToFinish">
    <with-group name="parallel_4_prefetch"/>
  </affected-histogram>
  <affected-histogram name="Renderer4.StartToFinish">
    <with-group name="parallel_4_prefetch"/>
  </affected-histogram>
</fieldtrial>

<fieldtrial name="LateBindingExperiment">
  <group name="disable_late_binding" label="socket late binding is disabled"/>
  <group name="enable_late_binding" label="socket late binding is enabled"/>
  <affected-histogram name="Net.SocketIdleTimeBeforeNextUse_ReusedSocket"/>
  <affected-histogram name="Net.SocketIdleTimeBeforeNextUse_UnusedSocket"/>
  <affected-histogram name="Net.SocketIdleTimeOnIOError2_ReusedSocket"/>
  <affected-histogram name="Net.SocketIdleTimeOnIOError2_UnusedSocket"/>
  <affected-histogram name="Net.TCPSocketType"/>
  <affected-histogram name="Net.Transaction_Connected"/>
  <affected-histogram name="Net.Transaction_Connected_Under_10"/>
  <affected-histogram name="Net.TransportSocketRequestTime"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoad"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="Renderer4.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="Renderer4.BeginToFinish_NormalLoad"/>
  <affected-histogram name="Renderer4.BeginToFinishDoc_LinkLoad"/>
  <affected-histogram name="Renderer4.BeginToFinishDoc_LinkLoadNormal"/>
  <affected-histogram name="Renderer4.BeginToFinishDoc_LinkLoadReload"/>
  <affected-histogram name="Renderer4.BeginToFinishDoc_NormalLoad"/>
  <affected-histogram name="Renderer4.RequestToFinish"/>
  <affected-histogram name="Renderer4.StartToFinish"/>
</fieldtrial>

<fieldtrial name="LevelDBEnvPlatformFileErrors" separator="">
  <group name="NewRandomAccessFile" label="NewRandomAccessFile"/>
  <group name="LockFile" label="LockFile"/>
  <affected-histogram name="LevelDBEnv.IDB.IOError."/>
  <affected-histogram name="LevelDBEnv.IOError."/>
</fieldtrial>

<fieldtrial name="LevelDBEnvRetryTimes" separator="">
  <group name="Rename" label="RenameFile"/>
  <group name="LockFile" label="LockFile"/>
  <affected-histogram name="LevelDBEnv.IDB.TimeTo"/>
  <affected-histogram name="LevelDBEnv.TimeTo"/>
</fieldtrial>

<fieldtrial name="OverlappedReadImpact">
  <group name="OverlappedReadDisabled" label="Non-blocking reads"/>
  <group name="OverlappedReadEnabled" label="Default, async reads"/>
  <affected-histogram name="Net.HttpJob.TotalTime"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeCancel"/>
  <affected-histogram name="Net.HttpJob.TotalTimeNotCached"/>
  <affected-histogram name="Net.HttpJob.TotalTimeSuccess"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadStaleOk"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
  <affected-histogram name="PLT.LoadType"/>
</fieldtrial>

<fieldtrial name="PageLoadType">
  <group name="HistoryLoad" label="but only for user pressing back or forward"/>
  <group name="LinkLoad"
      label="deprecated - see LinkLoadReload, LinkLoadNormal,
             LinkLoadStaleOk, LinkLoadCacheOnly; content initiated, commonly
             back to a posted page"/>
  <group name="LinkLoadCacheOnly"
      label="content initiated, commonly back to a posted page, where browser
             must ONLY use cache"/>
  <group name="LinkLoadNormal"
      label="content initiated, ordinary link traversal or post"/>
  <group name="LinkLoadReload" label="content initiated, calling reload()"/>
  <group name="LinkLoadStaleOk"
      label="content initiated, commonly forward or back where stale cached
             data is very acceptable"/>
  <group name="NormalLoad"
      label="but only for user entered URL or omnibox search"/>
  <group name="Reload" label="but only for user pressed reload"/>
  <group name="UndefLoad"
      label="should never happen... as it is only for an client-code error
             case which should not exist"/>
  <affected-histogram name="PLT.BeginToFinish"/>
  <affected-histogram name="PLT.BeginToFinishDoc"/>
  <affected-histogram name="PLT.StartToCommit">
    <with-group name="LinkLoadNormal"/>
    <with-group name="NormalLoad"/>
  </affected-histogram>
  <affected-histogram name="PLT.StartToFinish">
    <with-group name="LinkLoadNormal"/>
    <with-group name="NormalLoad"/>
  </affected-histogram>
  <affected-histogram name="Renderer4.BeginToFinish"/>
  <affected-histogram name="Renderer4.BeginToFinishDoc"/>
</fieldtrial>

<fieldtrial name="Prefetch">
  <group name="ContentPrefetchPrefetchOff"
      label="Prefetch is completely disabled."/>
  <group name="ContentPrefetchPrefetchOn"
      label="prefetch is enabled but prerender is disabled."/>
  <affected-histogram name="HttpCache.EntryLockWait"/>
  <affected-histogram name="Net.HttpTimeToFirstByte"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish"/>
  <affected-histogram name="PLT.BeginToFinish_ContentPrefetcher"/>
  <affected-histogram name="PLT.BeginToFinish_ContentPrefetcherReferrer"/>
  <affected-histogram name="PLT.BeginToFinishDoc"/>
  <affected-histogram name="PLT.BeginToFinishDoc_ContentPrefetcher"/>
  <affected-histogram name="PLT.BeginToFinishDoc_ContentPrefetcherReferrer"/>
  <affected-histogram name="PLT.PerceivedLoadTime"/>
  <affected-histogram name="PLT.PerceivedLoadTime_PrerenderLoad"/>
</fieldtrial>

<fieldtrial name="Prerender">
  <group name="PrerenderEnabled" label="prerender is enabled."/>
  <group name="PrerenderControl" label="prerender is disabled."/>
  <group name="PrerenderNoUse"
      label="prerender is enabled, but pages are not swapped in."/>
  <group name="PrerenderMulti"
      label="prerender is enabled with multiple simultanious prerenders."/>
  <group name="Prerender5minTTL"
      label="prerender is enabled, and the TTL is extended to 5 minutes."/>
  <affected-histogram name="HttpCache.EntryLockWait"/>
  <affected-histogram name="Net.HttpTimeToFirstByte"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish"/>
  <affected-histogram name="PLT.BeginToFinish_ContentPrefetcher"/>
  <affected-histogram name="PLT.BeginToFinish_ContentPrefetcherReferrer"/>
  <affected-histogram name="PLT.BeginToFinishDoc"/>
  <affected-histogram name="PLT.BeginToFinishDoc_ContentPrefetcher"/>
  <affected-histogram name="PLT.BeginToFinishDoc_ContentPrefetcherReferrer"/>
  <affected-histogram name="PLT.PerceivedLoadTime"/>
  <affected-histogram name="PLT.PerceivedLoadTime_PrerenderLoad"/>
  <affected-histogram name="Prerender.FinalStatus"/>
  <affected-histogram name="Prerender.FinalStatusMatchComplete"/>
  <affected-histogram name="Prerender.FractionPixelsFinalAtSwapin"/>
  <affected-histogram name="Prerender.LocalPredictorEvent"/>
  <affected-histogram name="Prerender.PerceivedPLT"/>
  <affected-histogram name="Prerender.PerceivedPLTFirstAfterMiss"/>
  <affected-histogram name="Prerender.PerceivedPLTFirstAfterMissAnyOnly"/>
  <affected-histogram name="Prerender.PerceivedPLTFirstAfterMissBoth"/>
  <affected-histogram
      name="Prerender.PerceivedPLTFirstAfterMissNonOverlapping"/>
  <affected-histogram
      name="Prerender.PerceivedPLTFirstAfterMissNonOverlappingOnly"/>
  <affected-histogram name="Prerender.PerceivedPLTMatched"/>
  <affected-histogram name="Prerender.PerceivedPLTMatchedComplete"/>
  <affected-histogram name="Prerender.PerceivedPLTWindowed"/>
  <affected-histogram name="Prerender.PerceivedPLTWindowNotMatched"/>
  <affected-histogram name="Prerender.PercentLoadDoneAtSwapin"/>
  <affected-histogram name="Prerender.PrerenderNotSwappedInPLT"/>
  <affected-histogram name="Prerender.RendererIdleTime"/>
  <affected-histogram name="Prerender.RendererPerceivedPLT"/>
  <affected-histogram name="Prerender.RendererPerceivedPLTMatched"/>
  <affected-histogram name="Prerender.RendererTimeUntilDisplay"/>
  <affected-histogram name="Prerender.SimulatedLocalBrowsingBaselinePLT"/>
  <affected-histogram name="Prerender.SimulatedLocalBrowsingPLT"/>
</fieldtrial>

<fieldtrial name="ProxyConnectionImpact">
  <group name="proxy_connections_16"
      label="with 16 connections per proxy server"/>
  <group name="proxy_connections_32"
      label="with 32 connections per proxy server"/>
  <group name="proxy_connections_64"
      label="with 64 connections per proxy server"/>
  <group name="proxy_connections_8"
      label="with 8 connections per proxy server"/>
  <affected-histogram name="Net.HttpProxySocketRequestTime"/>
  <affected-histogram name="Net.SocksSocketRequestTime"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadReload"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadStaleOk"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
</fieldtrial>

<fieldtrial name="QueryTimeSuffix" separator=".">
  <group name="0" label="N = 0"/>
  <group name="1" label="N = 1"/>
  <group name="2" label="N = 2"/>
  <group name="3" label="N = 3"/>
  <group name="4" label="N = 4"/>
  <group name="5" label="N = 5"/>
  <affected-histogram name="Omnibox.QueryTime"/>
</fieldtrial>

<fieldtrial name="SocketType">
  <group name="HTTPProxy" label="HTTP proxy socket"/>
  <group name="SOCK" label="SOCKS socket"/>
  <group name="SSL" label="(Obsolete, SSL socket)"/>
  <group name="SSL2" label="SSL2 socket"/>
  <group name="SSLForProxies"
      label="SSLClientSocket wrapping the TCPClient socket eventually used
             for connection to a proxy"/>
  <group name="SSLforHTTPSProxy"
      label="SSLClientSocket wrapping the TCPClient socket eventually used
             for connection to an HTTPS proxy"/>
  <group name="TCP" label="plain, no proxy, no SSL socket"/>
  <group name="TCPforHTTPProxy"
      label="TCPClientSocket eventually used for connection to an HTTP proxy"/>
  <group name="TCPforHTTPSProxy"
      label="TCPClientSocket eventually used for connection to an HTTPS proxy"/>
  <group name="TCPforSOCKS"
      label="TCPClientSocket eventually used for connection to a SOCKS proxy"/>
  <affected-histogram name="Net.SocketIdleTimeBeforeNextUse_ReusedSocket"/>
  <affected-histogram name="Net.SocketIdleTimeBeforeNextUse_UnusedSocket"/>
  <affected-histogram name="Net.SocketInitErrorCodes"/>
  <affected-histogram name="Net.SocketRequestTime"/>
  <affected-histogram name="Net.SocketType"/>
</fieldtrial>

<fieldtrial name="SpdyImpact">
  <group name="npn_with_http"
      label="with NPN negotiated but using HTTP instead of SPDY"/>
  <group name="npn_with_spdy" label="with NPN negotiated and using SPDY"/>
  <affected-histogram name="Net.Transaction_Connected"/>
  <affected-histogram name="Net.Transaction_Connected_New"/>
  <affected-histogram name="Net.Transaction_Connected_New_b"/>
  <affected-histogram name="Net.Transaction_Connected_Under_10"/>
  <affected-histogram name="PLT.Abandoned"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
  <affected-histogram name="PLT.StartToCommit_LinkLoadNormal"/>
  <affected-histogram name="PLT.StartToCommit_NormalLoad"/>
  <affected-histogram name="PLT.StartToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.StartToFinish_NormalLoad"/>
</fieldtrial>

<fieldtrial name="SpdySettingsCwnd" separator="">
  <group name="10K" label="where at least 10KB was transferred."/>
  <group name="25K" label="where at least 25KB was transferred."/>
  <group name="50K" label="where at least 50KB was transferred."/>
  <group name="100K" label="where at least 100KB was transferred."/>
  <affected-histogram name="Net.SpdySettingsCwnd"/>
</fieldtrial>

<fieldtrial name="SSLFalseStart">
  <group name="FalseStart_enabled"/>
  <group name="FalseStart_disabled"/>
  <affected-histogram name="Net.SSL_Connection_Latency"/>
  <affected-histogram name="PLT.BeginToFinish_LinkLoadNormal"/>
  <affected-histogram name="PLT.BeginToFinish_NormalLoad"/>
</fieldtrial>

<fieldtrial name="SSLResumption">
  <group name="Resume_Handshake" label="Session Resumption"/>
  <group name="Full_Handshake" label="Full"/>
  <affected-histogram name="Net.SSL_Connection_Latency"/>
  <affected-histogram name="Net.SSL_Connection_Latency_Google"/>
</fieldtrial>

</fieldtrials>

</histogram-configuration>