Sync trace time on Chrome OS (just like Android)

Sync trace time on Chrome OS (just like Android)

Change-Id: I518e0c91a5f48ae1f5909d1e86a8fabfb97d1ec4

BUG=none
TEST=record chrome events using about:tracing simultaneous with kernel events; check the resulting kernel event log for a trace_event_clock_sync record


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=124144

[nduca, 2012-02-27 22:47:35]

LGTM with tweaked comments. @jar for official review.

https://chromiumcodereview.appspot.com/9474023/diff/1/base/debug/trace_event_...
File base/debug/trace_event_impl.cc (left):

https://chromiumcodereview.appspot.com/9474023/diff/1/base/debug/trace_event_...
base/debug/trace_event_impl.cc:687: // Since Android does not support
sched_setaffinity, we cannot establish clock
You probably want to adjust the comments here, they're a bit stale.

[jar (doing other things), 2012-02-27 22:54:09]

LGTM with nduca's suggestion.

https://chromiumcodereview.appspot.com/9474023/diff/1/base/debug/trace_event_...
File base/debug/trace_event_impl.cc (left):

https://chromiumcodereview.appspot.com/9474023/diff/1/base/debug/trace_event_...
base/debug/trace_event_impl.cc:687: // Since Android does not support
sched_setaffinity, we cannot establish clock
+1
On 2012/02/27 22:47:36, nduca wrote:
> You probably want to adjust the comments here, they're a bit stale.

[commit-bot: I haz the power, 2012-02-28 21:31:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/sleffler@chromium.org/9474023/3001

[commit-bot: I haz the power, 2012-02-28 22:46:56]

Try job failure for 9474023-3001 (retry) on linux_rel for step "browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[commit-bot: I haz the power, 2012-02-28 23:09:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/sleffler@chromium.org/9474023/3001

[commit-bot: I haz the power, 2012-02-29 07:12:04]

Change committed as 124144