Revert of Do compositing update when switching from software to accelerated canvas

Revert of Do compositing update when switching from software to accelerated canvas (patchset #1 id:1 of https://codereview.chromium.org/2799033002/ )

Reason for revert:
Suspect this caused linux_optional_gpu_tests_rel tryserver to break in http://crbug.com/709342 .


Original issue's description:
> Do compositing update when switching from software to accelerated canvas
> 
> Also, re-enables switching from sw to accelerated canvas.
> 
> BUG=704571
> 
> Review-Url: https://codereview.chromium.org/2799033002
> Cr-Commit-Position: refs/heads/master@{#462706}
> Committed: https://chromium.googlesource.com/chromium/src/+/2f0fa56eb8fc2eee27d437e7b6c8038ba5a52d87

TBR=junov@chromium.org,fserb@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=704571
Review-Url: https://codereview.chromium.org/2799133004
Cr-Commit-Position: refs/heads/master@{#462783}
Committed: https://chromium.googlesource.com/chromium/src/+/9c1cc6a2801bf174202550d981303837277f058d

[Ken Russell (switch to Gerrit), 2017-04-07 05:42:02]

The CQ bit was checked by kbr@chromium.org

[Ken Russell (switch to Gerrit), 2017-04-07 05:42:02]

Created Revert of Do compositing update when switching from software to
accelerated canvas

[commit-bot: I haz the power, 2017-04-07 05:42:17]

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, 2017-04-07 05:55:02]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491543722545300, "parent_rev":
"9049bebd837e0af0c1e9cba1669779c14978ccf4", "commit_rev":
"9c1cc6a2801bf174202550d981303837277f058d"}

[commit-bot: I haz the power, 2017-04-07 05:55:48]

Description was changed from

==========
Revert of Do compositing update when switching from software to accelerated
canvas (patchset #1 id:1 of https://codereview.chromium.org/2799033002/ )

Reason for revert:
Suspect this caused linux_optional_gpu_tests_rel tryserver to break in
http://crbug.com/709342 .


Original issue's description:
> Do compositing update when switching from software to accelerated canvas
> 
> Also, re-enables switching from sw to accelerated canvas.
> 
> BUG=704571
> 
> Review-Url: https://codereview.chromium.org/2799033002
> Cr-Commit-Position: refs/heads/master@{#462706}
> Committed:
https://chromium.googlesource.com/chromium/src/+/2f0fa56eb8fc2eee27d437e7b6c8...

TBR=junov@chromium.org,fserb@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=704571
==========

to

==========
Revert of Do compositing update when switching from software to accelerated
canvas (patchset #1 id:1 of https://codereview.chromium.org/2799033002/ )

Reason for revert:
Suspect this caused linux_optional_gpu_tests_rel tryserver to break in
http://crbug.com/709342 .


Original issue's description:
> Do compositing update when switching from software to accelerated canvas
> 
> Also, re-enables switching from sw to accelerated canvas.
> 
> BUG=704571
> 
> Review-Url: https://codereview.chromium.org/2799033002
> Cr-Commit-Position: refs/heads/master@{#462706}
> Committed:
https://chromium.googlesource.com/chromium/src/+/2f0fa56eb8fc2eee27d437e7b6c8...

TBR=junov@chromium.org,fserb@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=704571

Review-Url: https://codereview.chromium.org/2799133004
Cr-Commit-Position: refs/heads/master@{#462783}
Committed:
https://chromium.googlesource.com/chromium/src/+/9c1cc6a2801bf174202550d98130...
==========

[commit-bot: I haz the power, 2017-04-07 05:55:49]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/9c1cc6a2801bf174202550d98130...