Merge "cros: Fix race on feedback extension loading"

Merge "cros: Fix race on feedback extension loading"

> - Move ExtensionHost check before loading feedback extension to fix the
>   race that ExtensionHost check could run after the loading makes
>   feedback background page up and running;
> - Handle the case where feedkback background host already exists,
>   just in case.
> - Add a retry in EnsureFeedbackUI to be sure the UI will be created;
>
> BUG=711123
>
> Review-Url: https://codereview.chromium.org/2837613002
> Cr-Commit-Position: refs/heads/master@{#466395}
> (cherry picked from commit 24d15b15c85b8d3a60c6985add50824fa6602467)

Review-Url: https://codereview.chromium.org/2836063002 .
Cr-Commit-Position: refs/branch-heads/3071@{#163}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/0afa4047734595061336ff666da0ed39ce9e5894

[xiyuan, 2017-04-24 15:55:21]

Description was changed from

==========
Merge "cros: Fix race on feedback extension loading"

> - Move ExtensionHost check before loading feedback extension to fix the
>   race that ExtensionHost check could run after the loading makes
>   feedback background page up and running;
> - Handle the case where feedkback background host already exists,
>   just in case.
> - Add a retry in EnsureFeedbackUI to be sure the UI will be created;
>
> BUG=711123
>
> Review-Url: https://codereview.chromium.org/2837613002
> Cr-Commit-Position: refs/heads/master@{#466395}
> (cherry picked from commit 24d15b15c85b8d3a60c6985add50824fa6602467)
==========

to

==========
Merge "cros: Fix race on feedback extension loading"

> - Move ExtensionHost check before loading feedback extension to fix the
>   race that ExtensionHost check could run after the loading makes
>   feedback background page up and running;
> - Handle the case where feedkback background host already exists,
>   just in case.
> - Add a retry in EnsureFeedbackUI to be sure the UI will be created;
>
> BUG=711123
>
> Review-Url: https://codereview.chromium.org/2837613002
> Cr-Commit-Position: refs/heads/master@{#466395}
> (cherry picked from commit 24d15b15c85b8d3a60c6985add50824fa6602467)

Review-Url: https://codereview.chromium.org/2836063002 .
Cr-Commit-Position: refs/branch-heads/3071@{#163}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/0afa4047734595061336ff666da0...
==========

[xiyuan, 2017-04-24 15:55:22]

Committed patchset #1 (id:1) manually as
0afa4047734595061336ff666da0ed39ce9e5894.