1 files changed, 0 insertions, 540 deletions
diff --git a/chrome/browser/net/passive_log_collector.h b/chrome/browser/net/passive_log_collector.h
deleted file mode 100644
index 701c5c3..0000000
--- a/chrome/browser/net/passive_log_collector.h
+++ /dev/null
@@ -1,540 +0,0 @@
-// Copyright (c) 2012 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.
-
-#ifndef CHROME_BROWSER_NET_PASSIVE_LOG_COLLECTOR_H_
-#define CHROME_BROWSER_NET_PASSIVE_LOG_COLLECTOR_H_
-#pragma once
-
-#include <deque>
-#include <string>
-#include <vector>
-
-#include "base/gtest_prod_util.h"
-#include "base/hash_tables.h"
-#include "base/memory/ref_counted.h"
-#include "base/time.h"
-#include "chrome/browser/net/chrome_net_log.h"
-#include "net/base/net_log.h"
-
-// PassiveLogCollector watches the NetLog event stream, and saves the network
-// events for recent requests, in a circular buffer.
-//
-// This is done so that when a network problem is encountered (performance
-// problem, or error), about:net-internals can be opened shortly after the
-// problem and it will contain a trace for the problem request.
-//
-// (This is in contrast to the "active logging" which captures every single
-// network event, but requires capturing to have been enabled *prior* to
-// encountering the problem. Active capturing is enabled as long as
-// about:net-internals is open).
-//
-// The data captured by PassiveLogCollector is grouped by NetLog::Source, into
-// a SourceInfo structure. These in turn are grouped by NetLog::SourceType, and
-// owned by a SourceTracker instance for the specific source type.
-//
-// The PassiveLogCollector is owned by the ChromeNetLog itself, and is not
-// thread safe.  The ChromeNetLog is responsible for calling it in a thread safe
-// manner.
-class PassiveLogCollector : public ChromeNetLog::ThreadSafeObserverImpl {
- public:
-  typedef std::vector<net::NetLog::Source> SourceDependencyList;
-
-  struct SourceInfo {
-    SourceInfo();
-    ~SourceInfo();
-
-    // Returns the URL that corresponds with this source. This is
-    // only meaningful for certain source types (URL_REQUEST, SOCKET_STREAM).
-    // For the rest, it will return an empty string.
-    std::string GetURL() const;
-
-    uint32 source_id;
-    ChromeNetLog::EntryList entries;
-    size_t num_entries_truncated;
-
-    // List of other sources which contain information relevant to this
-    // source (for example, a url request might depend on the log items
-    // for a connect job and for a socket that were bound to it.)
-    SourceDependencyList dependencies;
-
-    // Holds the count of how many other sources have added this as a
-    // dependent source. When it is 0, it means noone has referenced it so it
-    // can be deleted normally.
-    int reference_count;
-
-    // |is_alive| is set to false once the source has been added to the
-    // tracker's graveyard (it may still be kept around due to a non-zero
-    // reference_count, but it is still considered "dead").
-    bool is_alive;
-  };
-
-  typedef std::vector<SourceInfo> SourceInfoList;
-
-  // Interface for consuming a NetLog entry.
-  class SourceTrackerInterface {
-   public:
-    virtual ~SourceTrackerInterface() {}
-
-    virtual void OnAddEntry(const ChromeNetLog::Entry& entry) = 0;
-
-    // Clears all the passively logged data from this tracker.
-    virtual void Clear() = 0;
-
-    // Appends all the captured entries to |out|. The ordering is undefined.
-    virtual void AppendAllEntries(ChromeNetLog::EntryList* out) const = 0;
-  };
-
-  // This source tracker is intended for TYPE_NONE. All entries go into a
-  // circular buffer, and there is no concept of live/dead requests.
-  class GlobalSourceTracker : public SourceTrackerInterface {
-   public:
-    GlobalSourceTracker();
-    virtual ~GlobalSourceTracker();
-
-    // SourceTrackerInterface implementation:
-    virtual void OnAddEntry(const ChromeNetLog::Entry& entry) OVERRIDE;
-    virtual void Clear() OVERRIDE;
-    virtual void AppendAllEntries(ChromeNetLog::EntryList* out) const OVERRIDE;
-
-   private:
-    typedef std::deque<ChromeNetLog::Entry> CircularEntryList;
-    CircularEntryList entries_;
-    DISALLOW_COPY_AND_ASSIGN(GlobalSourceTracker);
-  };
-
-  // This class stores and manages the passively logged information for
-  // URLRequests/SocketStreams/ConnectJobs.
-  class SourceTracker : public SourceTrackerInterface {
-   public:
-    // Creates a SourceTracker that will track at most |max_num_sources|.
-    // Up to |max_graveyard_size| unreferenced sources will be kept around
-    // before deleting them for good. |parent| may be NULL, and points to
-    // the owning PassiveLogCollector (it is used when adding references
-    // to other sources).
-    SourceTracker(size_t max_num_sources,
-                  size_t max_graveyard_size,
-                  PassiveLogCollector* parent);
-
-    virtual ~SourceTracker();
-
-    // SourceTrackerInterface implementation:
-    virtual void OnAddEntry(const ChromeNetLog::Entry& entry) OVERRIDE;
-    virtual void Clear() OVERRIDE;
-    virtual void AppendAllEntries(ChromeNetLog::EntryList* out) const OVERRIDE;
-
-#ifdef UNIT_TEST
-    // Helper used to inspect the current state by unit-tests.
-    // Retuns a copy of the source infos held by the tracker.
-    SourceInfoList GetAllDeadOrAliveSources(bool is_alive) const {
-      SourceInfoList result;
-      for (SourceIDToInfoMap::const_iterator it = sources_.begin();
-           it != sources_.end(); ++it) {
-        if (it->second.is_alive == is_alive)
-          result.push_back(it->second);
-      }
-      return result;
-    }
-#endif
-
-   protected:
-    enum Action {
-      ACTION_NONE,
-      ACTION_DELETE,
-      ACTION_MOVE_TO_GRAVEYARD,
-    };
-
-    // Makes |info| hold a reference to |source|. This way |source| will be
-    // kept alive at least as long as |info|.
-    void AddReferenceToSourceDependency(const net::NetLog::Source& source,
-                                        SourceInfo* info);
-
-   private:
-    typedef base::hash_map<uint32, SourceInfo> SourceIDToInfoMap;
-    typedef std::deque<uint32> DeletionQueue;
-
-    // Updates |out_info| with the information from |entry|. Returns an action
-    // to perform for this map entry on completion.
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) = 0;
-
-    // Removes |source_id| from |sources_|. This also releases any references
-    // to dependencies held by this source.
-    void DeleteSourceInfo(uint32 source_id);
-
-    // Adds |source_id| to the FIFO queue (graveyard) for deletion.
-    void AddToDeletionQueue(uint32 source_id);
-
-    // Removes |source_id| from the |deletion_queue_| container.
-    void EraseFromDeletionQueue(uint32 source_id);
-
-    // Adds/Releases a reference from the source with ID |source_id|.
-    // Use |offset=-1| to do a release, and |offset=1| for an addref.
-    void AdjustReferenceCountForSource(int offset, uint32 source_id);
-
-    // Releases all the references to sources held by |info|.
-    void ReleaseAllReferencesToDependencies(SourceInfo* info);
-
-    // This map contains all of the sources being tracked by this tracker.
-    // (It includes both the "live" sources, and the "dead" ones.)
-    SourceIDToInfoMap sources_;
-
-    size_t max_num_sources_;
-    size_t max_graveyard_size_;
-
-    // FIFO queue for entries in |sources_| that are no longer alive, and
-    // can be deleted. This buffer is also called "graveyard" elsewhere. We
-    // queue sources for deletion so they can persist a bit longer.
-    DeletionQueue deletion_queue_;
-
-    PassiveLogCollector* parent_;
-
-    DISALLOW_COPY_AND_ASSIGN(SourceTracker);
-  };
-
-  // Specialization of SourceTracker for handling ConnectJobs.
-  class ConnectJobTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    explicit ConnectJobTracker(PassiveLogCollector* parent);
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-    DISALLOW_COPY_AND_ASSIGN(ConnectJobTracker);
-  };
-
-  // Specialization of SourceTracker for handling Sockets.
-  class SocketTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    SocketTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(SocketTracker);
-  };
-
-  // Specialization of SourceTracker for handling net::URLRequest/SocketStream.
-  class RequestTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    explicit RequestTracker(PassiveLogCollector* parent);
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(RequestTracker);
-  };
-
-  // Specialization of SourceTracker for handling
-  // SOURCE_PROXY_SCRIPT_DECIDER.
-  class ProxyScriptDeciderTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    ProxyScriptDeciderTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(ProxyScriptDeciderTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_SPDY_SESSION.
-  class SpdySessionTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    SpdySessionTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(SpdySessionTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_HOST_RESOLVER_IMPL_REQUEST.
-  class HostResolverRequestTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    HostResolverRequestTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(HostResolverRequestTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_HOST_RESOLVER_IMPL_JOB.
-  class HostResolverJobTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    HostResolverJobTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(HostResolverJobTracker);
-  };
-
-  // Tracks the log entries for the last seen
-  // SOURCE_HOST_RESOLVER_IMPL_PROC_TASK.
-  class HostResolverProcTaskTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    HostResolverProcTaskTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(HostResolverProcTaskTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_DISK_CACHE_ENTRY.
-  class DiskCacheEntryTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    DiskCacheEntryTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(DiskCacheEntryTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_DISK_CACHE_ENTRY.
-  class MemCacheEntryTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    MemCacheEntryTracker();
-
-   protected:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-   private:
-    DISALLOW_COPY_AND_ASSIGN(MemCacheEntryTracker);
-  };
-
-  class HttpStreamJobTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    explicit HttpStreamJobTracker(PassiveLogCollector* parent);
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-    DISALLOW_COPY_AND_ASSIGN(HttpStreamJobTracker);
-  };
-
-  class ExponentialBackoffThrottlingTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    explicit ExponentialBackoffThrottlingTracker(PassiveLogCollector* parent);
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-    DISALLOW_COPY_AND_ASSIGN(ExponentialBackoffThrottlingTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_DNS_TRANSACTION.
-  class DnsTransactionTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    DnsTransactionTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(DnsTransactionTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_ASYNC_HOST_RESOLVER_REQUEST
-  class AsyncHostResolverRequestTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    AsyncHostResolverRequestTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(AsyncHostResolverRequestTracker);
-  };
-
-
-  // Tracks the log entries for the last seen SOURCE_UDP_SOCKET.
-  class UDPSocketTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    UDPSocketTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(UDPSocketTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_CERT_VERIFIER_JOB.
-  class CertVerifierJobTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    CertVerifierJobTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(CertVerifierJobTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_HTTP_PIPELINED_CONNECTION.
-  class HttpPipelinedConnectionTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    HttpPipelinedConnectionTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(HttpPipelinedConnectionTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_DOWNLOAD.
-  class DownloadTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    DownloadTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(DownloadTracker);
-  };
-
-  // Tracks the log entries for the last seen SOURCE_FILESTREAM.
-  class FileStreamTracker : public SourceTracker {
-   public:
-    static const size_t kMaxNumSources;
-    static const size_t kMaxGraveyardSize;
-
-    FileStreamTracker();
-
-   private:
-    virtual Action DoAddEntry(const ChromeNetLog::Entry& entry,
-                              SourceInfo* out_info) OVERRIDE;
-
-    DISALLOW_COPY_AND_ASSIGN(FileStreamTracker);
-  };
-
-  PassiveLogCollector();
-  virtual ~PassiveLogCollector();
-
-  // ThreadSafeObserver implementation:
-  virtual void OnAddEntry(net::NetLog::EventType type,
-                          const base::TimeTicks& time,
-                          const net::NetLog::Source& source,
-                          net::NetLog::EventPhase phase,
-                          net::NetLog::EventParameters* params) OVERRIDE;
-
-  // Clears all of the passively logged data.
-  void Clear();
-
-  // Fills |out| with the full list of events that have been passively
-  // captured. The list is ordered by capture time.
-  void GetAllCapturedEvents(ChromeNetLog::EntryList* out) const;
-
- private:
-  // Returns the tracker to use for sources of type |source_type|, or NULL.
-  SourceTrackerInterface* GetTrackerForSourceType(
-      net::NetLog::SourceType source_type);
-
-  FRIEND_TEST_ALL_PREFIXES(PassiveLogCollectorTest,
-                           HoldReferenceToDependentSource);
-  FRIEND_TEST_ALL_PREFIXES(PassiveLogCollectorTest,
-                           HoldReferenceToDeletedSource);
-
-  GlobalSourceTracker global_source_tracker_;
-  ConnectJobTracker connect_job_tracker_;
-  SocketTracker socket_tracker_;
-  RequestTracker url_request_tracker_;
-  RequestTracker socket_stream_tracker_;
-  ProxyScriptDeciderTracker proxy_script_decider_tracker_;
-  SpdySessionTracker spdy_session_tracker_;
-  HostResolverRequestTracker dns_request_tracker_;
-  HostResolverJobTracker dns_job_tracker_;
-  HostResolverProcTaskTracker dns_proc_task_tracker_;
-  DiskCacheEntryTracker disk_cache_entry_tracker_;
-  MemCacheEntryTracker mem_cache_entry_tracker_;
-  HttpStreamJobTracker http_stream_job_tracker_;
-  ExponentialBackoffThrottlingTracker exponential_backoff_throttling_tracker_;
-  DnsTransactionTracker dns_transaction_tracker_;
-  AsyncHostResolverRequestTracker async_host_resolver_request_tracker_;
-  UDPSocketTracker udp_socket_tracker_;
-  CertVerifierJobTracker cert_verifier_job_tracker_;
-  HttpPipelinedConnectionTracker http_pipelined_connection_tracker_;
-  DownloadTracker download_tracker_;
-  FileStreamTracker file_stream_tracker_;
-
-  // This array maps each NetLog::SourceType to one of the tracker instances
-  // defined above. Use of this array avoid duplicating the list of trackers
-  // elsewhere.
-  SourceTrackerInterface* trackers_[net::NetLog::SOURCE_COUNT];
-
-  // The count of how many events have flowed through this log. Used to set the
-  // "order" field on captured events.
-  uint32 num_events_seen_;
-
-  DISALLOW_COPY_AND_ASSIGN(PassiveLogCollector);
-};
-
-#endif  // CHROME_BROWSER_NET_PASSIVE_LOG_COLLECTOR_H_