Repeat window snapshot copy request on failure

Repeat window snapshot copy request on failure

We're hitting a bug where copy requests sporadically fail. The complete
fix is pretty involved (see https://crbug.com/644992 ), but just
repeating the copy request a few times should greatly reduce the
frequency of the problem and should be mergeable to M54.

BUG=644569
Review-Url: https://codereview.chromium.org/2349973009
Cr-Commit-Position: refs/heads/master@{#422012}
(cherry picked from commit cebea890c1e2a49072e0e5ec2bd8823ae2bb2a86)

Committed: https://chromium.googlesource.com/chromium/src/+/e8ee8cdd0aa79f732553ec7562ce245f1a16f40d

[jbauman, 2016-10-03 21:40:32]

Description was changed from

==========
Repeat window snapshot copy request on failure

We're hitting a bug where copy requests sporadically fail. The complete
fix is pretty involved (see https://crbug.com/644992 ), but just
repeating the copy request a few times should greatly reduce the
frequency of the problem and should be mergeable to M54.

BUG=644569

Review-Url: https://codereview.chromium.org/2349973009
Cr-Commit-Position: refs/heads/master@{#422012}
(cherry picked from commit cebea890c1e2a49072e0e5ec2bd8823ae2bb2a86)
==========

to

==========
Repeat window snapshot copy request on failure

We're hitting a bug where copy requests sporadically fail. The complete
fix is pretty involved (see https://crbug.com/644992 ), but just
repeating the copy request a few times should greatly reduce the
frequency of the problem and should be mergeable to M54.

BUG=644569

Review-Url: https://codereview.chromium.org/2349973009
Cr-Commit-Position: refs/heads/master@{#422012}
(cherry picked from commit cebea890c1e2a49072e0e5ec2bd8823ae2bb2a86)

Committed:
https://chromium.googlesource.com/chromium/src/+/e8ee8cdd0aa79f732553ec7562ce...
==========

[jbauman, 2016-10-03 21:40:34]

Committed patchset #1 (id:1) manually as
e8ee8cdd0aa79f732553ec7562ce245f1a16f40d.