Remove allow-webui-compositing switch

Remove allow-webui-compositing switch

Long ago, we used to disable compositing on chrome: and about: URLs by default
since that caused a startup performance hit. We then had an --allow-webui-compositing
switch to override this behavior when desired.  The usefulness of this behavior
has long gone and we completely ignore the behavior and the flag on aura builds. This
nukes it from the code

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=251915

[jamesr, 2014-02-14 23:29:14]

This will be a very minor behavior change for mac as the flag is ignored on all
aura and android builds.  On mac it won't have any practical difference - we can
composite everything just fine.

piman@ - content
sky@ - chrome

[piman, 2014-02-14 23:31:29]

lgtm

[sky, 2014-02-18 16:25:50]

LGTM

[jamesr, 2014-02-18 16:29:32]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-02-18 16:29:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamesr@chromium.org/167713003/1

[commit-bot: I haz the power, 2014-02-18 17:56:18]

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

[commit-bot: I haz the power, 2014-02-18 17:56:18]

Retried try job too often on win_rel for step(s) unit_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[jamesr, 2014-02-18 22:39:05]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-02-18 22:39:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamesr@chromium.org/167713003/1

[jamesr, 2014-02-18 23:32:36]

The CQ bit was unchecked by jamesr@chromium.org

[jamesr, 2014-02-18 23:32:38]

The CQ bit was checked by jamesr@chromium.org

[jamesr, 2014-02-18 23:33:10]

On 2014/02/18 23:32:38, jamesr wrote:
> The CQ bit was checked by mailto:jamesr@chromium.org

Argh, focus on the checkbox when moving through tabs with the keyboard.

[commit-bot: I haz the power, 2014-02-19 01:56:01]

Change committed as 251915