Add glTraceBeginCHROMIUM and glTraceEndCHROMIUM.
This is currently implemented as a no-op on the server side.
When implemented the glTraceBegin will issue a trace timestamp into
the GPU message stream. The glTraceEnd will issue another timestamp
into the GPU stream. Eventually, when the two timers have been
exeucted by the GPU, an event will be sent to about:tracing with the
relevant timeing information.
BUG=111509
Review URL: https://chromiumcodereview.appspot.com/11366113
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168323 0039d316-1c4b-4281-b951-d872f2087c98
21 files changed
