Re-enable GPU Rasterization for content with any author defined viewport.

Re-enable GPU Rasterization for content with any author defined viewport.

BUG=591179
Committed: https://crrev.com/a017b667a53b3ee5f8bc630be98c37ebf53a2339
Cr-Commit-Position: refs/heads/master@{#402702}

[vmiura, 2016-06-28 17:19:35]

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

[commit-bot: I haz the power, 2016-06-28 17:20:06]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[vmiura, 2016-06-28 17:21:50]

vmiura@chromium.org changed reviewers:
+ aelias@chromium.org, chrishtr@chromium.org

[vmiura, 2016-06-28 17:21:50]

PTAL.  I'd like to get this in the pipeline for 53 and get some data before we
seek approval on the WebView memory regression.

[commit-bot: I haz the power, 2016-06-28 17:24:07]

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

[commit-bot: I haz the power, 2016-06-28 17:24:09]

Dry run: This issue passed the CQ dry run.

[chrishtr, 2016-06-28 17:28:20]

lgtm

[aelias_OOO_until_Jul13, 2016-06-28 20:07:33]

lgtm

[vmiura, 2016-06-28 22:56:18]

The CQ bit was checked by vmiura@chromium.org

[commit-bot: I haz the power, 2016-06-28 22:58:25]

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, 2016-06-29 03:34:11]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-29 03:37:12]

Description was changed from

==========
Re-enable GPU Rasterization for content with any author defined viewport.

BUG=591179
==========

to

==========
Re-enable GPU Rasterization for content with any author defined viewport.

BUG=591179

Committed: https://crrev.com/a017b667a53b3ee5f8bc630be98c37ebf53a2339
Cr-Commit-Position: refs/heads/master@{#402702}
==========

[commit-bot: I haz the power, 2016-06-29 03:37:13]

Patchset 2 (id:??) landed as
https://crrev.com/a017b667a53b3ee5f8bc630be98c37ebf53a2339
Cr-Commit-Position: refs/heads/master@{#402702}

[picksi1, 2016-07-15 10:38:35]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/2156553002/ by picksi@chromium.org.

The reason for reverting is: This has caused an unexpectedly large regression in
overall PSS (about 5MB, graph here:
https://chromeperf.appspot.com/report?sid=0b072725c25637efb0d3a44383da1e24e42...).

The owners are both OOO and this is blocking Android release so I am reverting
it.

.