Turn on the fixed position stacking context flag by default

Turn on the fixed position stacking context flag by default

Because there's an expectation that this flag will need to be reverted on a
branch, add both the enable and the disable flags so that only
web_contents_impl.cc will need to be touched to change the default value.
Both can be removed later, once this setting sticks.

BUG=none
TEST=none


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=148572

[Ben Goodger (Google), 2012-07-26 00:55:44]

LGTM

[commit-bot: I haz the power, 2012-07-26 01:17:43]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/enne@chromium.org/10825027/1

[commit-bot: I haz the power, 2012-07-26 01:17:46]

Presubmit check for 10825027-1 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit ERRORS **
Missing LGTM from an OWNER for files in these directories:
    content/public

[enne (OOO), 2012-07-26 01:26:35]

+joi for OWNERS

[Jói, 2012-07-26 09:54:14]

LGTM for content/public.

On Thu, Jul 26, 2012 at 1:26 AM,  <enne@chromium.org> wrote:
> +joi for OWNERS
>
> https://chromiumcodereview.appspot.com/10825027/

[commit-bot: I haz the power, 2012-07-26 15:35:50]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/enne@chromium.org/10825027/1

[commit-bot: I haz the power, 2012-07-26 17:10:19]

Change committed as 148572