Revert of Make disabling 2d canvas GPU acceleration for getImageData less aggressive.

Revert of Make disabling 2d canvas GPU acceleration for getImageData less aggressive. (patchset #4 id:60001 of https://codereview.chromium.org/2687073003/ )

Reason for revert:
Caused http://crbug.com/695471 -- regressions of 2D/WebGL canvas test on Linux AMD.


Original issue's description:
> Make disabling 2d canvas GPU acceleration for getImageData less aggressive.
> 
> Make canvas switch out of gpu acceleration only when getImageData is
> called in successive frames. This will avoid disabling gpu acceleration
> when getImageData is only called once or is called very rarely.
> 
> BUG=690122
> 
> Review-Url: https://codereview.chromium.org/2687073003
> Cr-Commit-Position: refs/heads/master@{#451998}
> Committed: https://chromium.googlesource.com/chromium/src/+/c36340833135933c5934ece592fb41b82743e2d8

TBR=junov@chromium.org,xiangze.zhang@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=690122
Review-Url: https://codereview.chromium.org/2714103002
Cr-Commit-Position: refs/heads/master@{#452968}
Committed: https://chromium.googlesource.com/chromium/src/+/c9b8e77314a6de607cddd12813265638d13b5355

[Ken Russell (switch to Gerrit), 2017-02-24 07:01:44]

The CQ bit was checked by kbr@chromium.org

[Ken Russell (switch to Gerrit), 2017-02-24 07:01:44]

Created Revert of Make disabling 2d canvas GPU acceleration for getImageData
less aggressive.

[commit-bot: I haz the power, 2017-02-24 07:01:54]

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, 2017-02-24 07:29:35]

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

[commit-bot: I haz the power, 2017-02-24 07:29:35]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[Ken Russell (switch to Gerrit), 2017-02-24 21:22:01]

The CQ bit was checked by kbr@chromium.org

[commit-bot: I haz the power, 2017-02-24 21:22:39]

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, 2017-02-24 22:47:34]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487971321655490, "parent_rev":
"f97f7538cc5be6da3145a830ff1a786f6c0bbf78", "commit_rev":
"c9b8e77314a6de607cddd12813265638d13b5355"}

[commit-bot: I haz the power, 2017-02-24 22:48:14]

Description was changed from

==========
Revert of Make disabling 2d canvas GPU acceleration for getImageData less
aggressive. (patchset #4 id:60001 of https://codereview.chromium.org/2687073003/
)

Reason for revert:
Caused http://crbug.com/695471 -- regressions of 2D/WebGL canvas test on Linux
AMD.


Original issue's description:
> Make disabling 2d canvas GPU acceleration for getImageData less aggressive.
> 
> Make canvas switch out of gpu acceleration only when getImageData is
> called in successive frames. This will avoid disabling gpu acceleration
> when getImageData is only called once or is called very rarely.
> 
> BUG=690122
> 
> Review-Url: https://codereview.chromium.org/2687073003
> Cr-Commit-Position: refs/heads/master@{#451998}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c36340833135933c5934ece592fb...

TBR=junov@chromium.org,xiangze.zhang@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=690122
==========

to

==========
Revert of Make disabling 2d canvas GPU acceleration for getImageData less
aggressive. (patchset #4 id:60001 of https://codereview.chromium.org/2687073003/
)

Reason for revert:
Caused http://crbug.com/695471 -- regressions of 2D/WebGL canvas test on Linux
AMD.


Original issue's description:
> Make disabling 2d canvas GPU acceleration for getImageData less aggressive.
> 
> Make canvas switch out of gpu acceleration only when getImageData is
> called in successive frames. This will avoid disabling gpu acceleration
> when getImageData is only called once or is called very rarely.
> 
> BUG=690122
> 
> Review-Url: https://codereview.chromium.org/2687073003
> Cr-Commit-Position: refs/heads/master@{#451998}
> Committed:
https://chromium.googlesource.com/chromium/src/+/c36340833135933c5934ece592fb...

TBR=junov@chromium.org,xiangze.zhang@intel.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=690122

Review-Url: https://codereview.chromium.org/2714103002
Cr-Commit-Position: refs/heads/master@{#452968}
Committed:
https://chromium.googlesource.com/chromium/src/+/c9b8e77314a6de607cddd1281326...
==========

[commit-bot: I haz the power, 2017-02-24 22:48:17]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/c9b8e77314a6de607cddd1281326...