Add lighter weight lock guards.

Add lighter weight lock guards.

BUG=skia:

Committed: https://skia.googlesource.com/skia/+/12449a9614f6c1becdb464b39c6a11a79feb0589

[herb_g, 2015-10-21 20:25:15]

Description was changed from

==========
Add lighter weight lock guards.

BUG=skia:
==========

to

==========
Add lighter weight lock guards.

BUG=skia:
==========

[herb_g, 2015-10-21 20:25:15]

herb@google.com changed reviewers:
+ bungeman@google.com

[bungeman-skia, 2015-10-21 21:19:09]

lgtm

https://codereview.chromium.org/1417583005/diff/1/src/core/SkSharedMutex.h
File src/core/SkSharedMutex.h (right):

https://codereview.chromium.org/1417583005/diff/1/src/core/SkSharedMutex.h#ne...
src/core/SkSharedMutex.h:72: class SkAutoSharedMutexShared {
After some thinking about it I do get the name, but it doesn't seem that
obvious. On the other hand, I'm not sure I have a better suggestion.

[herb_g, 2015-10-21 21:44:33]

The CQ bit was checked by herb@google.com to run a CQ dry run

[commit-bot: I haz the power, 2015-10-21 21:44:44]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1417583005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1417583005/1

[commit-bot: I haz the power, 2015-10-21 21:53:44]

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

[commit-bot: I haz the power, 2015-10-21 21:53:44]

Dry run: This issue passed the CQ dry run.

[herb_g, 2015-10-22 02:10:34]

The CQ bit was checked by herb@google.com

[commit-bot: I haz the power, 2015-10-22 02:10:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1417583005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1417583005/1

[commit-bot: I haz the power, 2015-10-22 02:11:49]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/12449a9614f6c1becdb464b39c6a11a79feb0589