Added some tracing to VrShell

Added some tracing to VrShell

Should help identify how long we're spending in the frame rendering portion
of VrShell

BUG=389343
Committed: https://crrev.com/8a2846f5e75fb555fc8b943485ade6415c405ca3
Cr-Commit-Position: refs/heads/master@{#433032}

[bajones, 2016-11-17 22:27:44]

bajones@chromium.org changed reviewers:
+ bshe@chromium.org, mthiesse@chromium.org

[bajones, 2016-11-17 22:27:44]

PTAL!

[mthiesse, 2016-11-17 22:28:41]

lgtm

[bajones, 2016-11-17 22:29:26]

The CQ bit was checked by bajones@chromium.org

[commit-bot: I haz the power, 2016-11-17 22:30:48]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-17 23:58:09]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-17 23:58:11]

Failed to apply the patch.

[bajones, 2016-11-18 00:36:25]

The CQ bit was checked by bajones@chromium.org

[commit-bot: I haz the power, 2016-11-18 00:38:50]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-18 02:55:44]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-18 03:00:50]

Description was changed from

==========
Added some tracing to VrShell

Should help identify how long we're spending in the frame rendering portion
of VrShell

BUG=389343
==========

to

==========
Added some tracing to VrShell

Should help identify how long we're spending in the frame rendering portion
of VrShell

BUG=389343

Committed: https://crrev.com/8a2846f5e75fb555fc8b943485ade6415c405ca3
Cr-Commit-Position: refs/heads/master@{#433032}
==========

[commit-bot: I haz the power, 2016-11-18 03:00:51]

Patchset 1 (id:??) landed as
https://crrev.com/8a2846f5e75fb555fc8b943485ade6415c405ca3
Cr-Commit-Position: refs/heads/master@{#433032}