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fix users of same.
BUG=none
TEST=unittests
Review URL: http://codereview.chromium.org/4517004
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65310 0039d316-1c4b-4281-b951-d872f2087c98
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Assert on non-null properties to the static members of the trace controller.
Fix usage of same.
Add a PostEventsDisabled method to trace producer to which allows for a non-racy enable/disable test.
Fix a race in the trace event unittest by normalizing the state of the singleton ETW provider to dead, dead, and stone cold dead with an at exit manager.
BUG=52388
BUG=59328
TEST=Unittests in the change.
Review URL: http://codereview.chromium.org/3777007
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@62834 0039d316-1c4b-4281-b951-d872f2087c98
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BUG=50273
TEST=everything still builds, build is 10% faster on windows, same speed on mac/linux
TBR: erg
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@53716 0039d316-1c4b-4281-b951-d872f2087c98
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to control the log level and log feature flags from outside the process, and all log messages can be transported into ETW trace sessions.As is this provides an event trace provider class thatmanages the log level on control callbacks and shunts the formatted log messages to ETW when warranted.The provider observes one feature flag, which when turned on causes it to capture and log a stack trace at the log site, which can be helpful when diagnosing errors from logs.This CL also initializes ETW logging for chrome.dll, but only if the environment variable "CHROME_ETW_LOGGING" is set. The ETW machinery may create a thread in every process registering a trace provider, and the environment variable makes this overhead optional.
TEST=Unittests in this change
BUG=none
Review URL: http://codereview.chromium.org/413006
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@33066 0039d316-1c4b-4281-b951-d872f2087c98
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