Stop exposing --disable-gpu-compositing as a Blink RuntimeEnabledFeature

Stop exposing --disable-gpu-compositing as a Blink RuntimeEnabledFeature

My previous CL makes this flag as a RuntimeEnabledFeature under Blink
which can be query anywhere in Blink. This CL move it to
public/platform/Platform.h. We put an extra note in there saying that
this function should never be called from core/ and modules/, should only
be called from platform/graphics.

BUG=650795
Committed: https://crrev.com/570d8768c9645b4c9936461087174241df70fdeb
Cr-Commit-Position: refs/heads/master@{#423353}

[xidachen, 2016-10-05 12:36:16]

xidachen@chromium.org changed reviewers:
+ danakj@chromium.org, esprehn@chromium.org

[xidachen, 2016-10-05 12:36:17]

PTAL

I took Dana's advice and put this in public/platform/Platform.h with an extra
note that this should never be called in core/ and modules/.

[esprehn, 2016-10-05 19:49:14]

esprehn@chromium.org changed reviewers:
+ vollick@chromium.org

[esprehn, 2016-10-05 19:49:15]

Okay, though I still think this maybe belongs as part of cc, isn't this more a
question of the graphics stack like cc::DisplaySurface::SupportsGpuTextures() =>
bool or something?

lgtm

[xidachen, 2016-10-05 19:53:41]

The CQ bit was checked by xidachen@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-10-05 19:54:26]

Dry run: 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, 2016-10-05 20:52:37]

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

[commit-bot: I haz the power, 2016-10-05 20:52:38]

Dry run: This issue passed the CQ dry run.

[xidachen, 2016-10-06 00:16:34]

The CQ bit was checked by xidachen@chromium.org

[commit-bot: I haz the power, 2016-10-06 00:17:36]

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, 2016-10-06 00:25:13]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-10-06 00:27:34]

Description was changed from

==========
Stop exposing --disable-gpu-compositing as a Blink RuntimeEnabledFeature

My previous CL makes this flag as a RuntimeEnabledFeature under Blink
which can be query anywhere in Blink. This CL move it to
public/platform/Platform.h. We put an extra note in there saying that
this function should never be called from core/ and modules/, should only
be called from platform/graphics.

BUG=650795
==========

to

==========
Stop exposing --disable-gpu-compositing as a Blink RuntimeEnabledFeature

My previous CL makes this flag as a RuntimeEnabledFeature under Blink
which can be query anywhere in Blink. This CL move it to
public/platform/Platform.h. We put an extra note in there saying that
this function should never be called from core/ and modules/, should only
be called from platform/graphics.

BUG=650795

Committed: https://crrev.com/570d8768c9645b4c9936461087174241df70fdeb
Cr-Commit-Position: refs/heads/master@{#423353}
==========

[commit-bot: I haz the power, 2016-10-06 00:27:35]

Patchset 3 (id:??) landed as
https://crrev.com/570d8768c9645b4c9936461087174241df70fdeb
Cr-Commit-Position: refs/heads/master@{#423353}