Adding test to verify that Canvas2DLayerBridge flushes only when required

Adding test to verify that Canvas2DLayerBridge flushes only when required

This is a follow-up to CL:
https://codereview.chromium.org/2637553002/
It adds a unit test to validate the functionality of the new
optimization that prevents redundant flushing.

BUG=681200
Review-Url: https://codereview.chromium.org/2636973002
Cr-Commit-Position: refs/heads/master@{#443955}
Committed: https://chromium.googlesource.com/chromium/src/+/a4eab9aa9b5cbeb5e9dde2ce1eb0ecd6313c8f6c

[Justin Novosad, 2017-01-16 20:39:44]

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

[commit-bot: I haz the power, 2017-01-16 20:40:02]

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

[Justin Novosad, 2017-01-16 20:40:21]

junov@chromium.org changed reviewers:
+ xlai@chromium.org

[Justin Novosad, 2017-01-16 20:40:22]

PTAL

[xlai (Olivia), 2017-01-16 21:52:11]

lgtm

[commit-bot: I haz the power, 2017-01-16 22:06:31]

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

[commit-bot: I haz the power, 2017-01-16 22:06:32]

Dry run: This issue passed the CQ dry run.

[Justin Novosad, 2017-01-16 22:22:48]

The CQ bit was checked by junov@chromium.org

[commit-bot: I haz the power, 2017-01-16 22:23:11]

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, 2017-01-16 22:28:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484605368862720, "parent_rev":
"f884cfbdb43016fb8a736f06de160f2ae754daab", "commit_rev":
"a4eab9aa9b5cbeb5e9dde2ce1eb0ecd6313c8f6c"}

[commit-bot: I haz the power, 2017-01-16 22:29:27]

Description was changed from

==========
Adding test to verify that Canvas2DLayerBridge flushes only when required

This is a follow-up to CL:
https://codereview.chromium.org/2637553002/
It adds a unit test to validate the functionality of the new
optimization that prevents redundant flushing.

BUG=681200
==========

to

==========
Adding test to verify that Canvas2DLayerBridge flushes only when required

This is a follow-up to CL:
https://codereview.chromium.org/2637553002/
It adds a unit test to validate the functionality of the new
optimization that prevents redundant flushing.

BUG=681200

Review-Url: https://codereview.chromium.org/2636973002
Cr-Commit-Position: refs/heads/master@{#443955}
Committed:
https://chromium.googlesource.com/chromium/src/+/a4eab9aa9b5cbeb5e9dde2ce1eb0...
==========

[commit-bot: I haz the power, 2017-01-16 22:29:28]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a4eab9aa9b5cbeb5e9dde2ce1eb0...