Fix flaky toBlob tests

Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.

TBR=haraken@chromium.org
BUG=628308
Committed: https://crrev.com/20989491201825820c93697de6d92d3b148b10b5
Cr-Commit-Position: refs/heads/master@{#405622}

[xlai (Olivia), 2016-07-14 22:03:59]

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

[xlai (Olivia), 2016-07-14 22:04:00]

Fixing leak on WebKit Linux Leak bot due to
https://codereview.chromium.org/2143353002.

[xlai (Olivia), 2016-07-14 22:06:25]

Description was changed from

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.

BUG=628308
==========

to

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.


TBR=haraken@chromium.org
BUG=628308
==========

[xlai (Olivia), 2016-07-14 22:06:39]

The CQ bit was checked by xlai@chromium.org

[commit-bot: I haz the power, 2016-07-14 22:07:44]

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, 2016-07-14 23:23:17]

Description was changed from

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.


TBR=haraken@chromium.org
BUG=628308
==========

to

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.


TBR=haraken@chromium.org
BUG=628308
==========

[commit-bot: I haz the power, 2016-07-14 23:23:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-14 23:23:23]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-14 23:24:56]

Description was changed from

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.


TBR=haraken@chromium.org
BUG=628308
==========

to

==========
Fix flaky toBlob tests

Some layout tests are flaky on WebKit Leak bot due to m_document introduced to
CanvasAsyncBlobCreator in https://codereview.chromium.org/2143353002.

TBR=haraken@chromium.org
BUG=628308

Committed: https://crrev.com/20989491201825820c93697de6d92d3b148b10b5
Cr-Commit-Position: refs/heads/master@{#405622}
==========

[commit-bot: I haz the power, 2016-07-14 23:24:57]

Patchset 1 (id:??) landed as
https://crrev.com/20989491201825820c93697de6d92d3b148b10b5
Cr-Commit-Position: refs/heads/master@{#405622}

[haraken, 2016-07-15 00:06:06]

Thanks for the fix, LGTM!