Expand viewport trigger for GPU rasterization

Expand viewport trigger for GPU rasterization

This expands the viewport trigger for GPU rasterization to
all viewport tags containing "width=device-width".

This is a generalization of the current trigger (which
additionally requires "minimum-scale=1").

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=185058

[ajuma, 2014-10-30 23:09:12]

ajuma@chromium.org changed reviewers:
+ ernstm@chromium.org

[ernstm, 2014-10-31 00:24:35]

On 2014/10/30 23:11:21, ajuma wrote:

LGTM

[ernstm, 2014-10-31 00:32:16]

The CQ bit was checked by ernstm@chromium.org

[commit-bot: I haz the power, 2014-10-31 00:32:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/696493004/1

[commit-bot: I haz the power, 2014-10-31 00:37:22]

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

[commit-bot: I haz the power, 2014-10-31 00:37:25]

Try jobs failed on following builders:
  blink_presubmit on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/1...)

[ajuma, 2014-10-31 01:16:14]

ajuma@chromium.org changed reviewers:
+ aelias@chromium.org

[ajuma, 2014-10-31 01:16:49]

+aelias for Source/web OWNERS

[aelias_OOO_until_Jul13, 2014-10-31 01:37:02]

Could we hold this off until after M40 branch point (which is just a week from
now)?  Expanded to this extent, I expect we'll feel the pain of
http://crbug.com/424440, since mobile pages can have large images too.

[ernstm, 2014-10-31 19:42:11]

On 2014/10/31 01:37:02, aelias wrote:
> Could we hold this off until after M40 branch point (which is just a week from
> now)?  Expanded to this extent, I expect we'll feel the pain of
> http://crbug.com/424440, since mobile pages can have large images too.

Vangelis also expressed this concern. Let's wait until after the branch.

[ajuma, 2014-11-10 18:33:11]

On 2014/10/31 19:42:11, ernstm wrote:
> On 2014/10/31 01:37:02, aelias wrote:
> > Could we hold this off until after M40 branch point (which is just a week
from
> > now)?  Expanded to this extent, I expect we'll feel the pain of
> > http://crbug.com/424440, since mobile pages can have large images too.
> 
> Vangelis also expressed this concern. Let's wait until after the branch.

Now that we've passed the branch point, should we try this out?

[aelias_OOO_until_Jul13, 2014-11-10 19:14:19]

OK, lgtm.

[ernstm, 2014-11-10 19:27:01]

The CQ bit was checked by ernstm@chromium.org

[commit-bot: I haz the power, 2014-11-10 19:27:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/696493004/20001

[commit-bot: I haz the power, 2014-11-10 19:52:39]

Committed patchset #2 (id:20001) as 185058