[Merge M59] arg: Implement retry logic for transient errors

[Merge M59] arg: Implement retry logic for transient errors

BUG=723835
TEST=Manually, emulated different errors and confirmed that opt in
     flow worked as expected.
TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2887093003
Cr-Original-Commit-Position: refs/heads/master@{#472606}
Review-Url: https://codereview.chromium.org/2896513002
Cr-Commit-Position: refs/branch-heads/3071@{#624}
Cr-Branched-From: a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed: https://chromium.googlesource.com/chromium/src/+/62a8cc8f4b943991e8365424d415ffe64a530220

[khmel, 2017-05-19 00:05:29]

Description was changed from

==========
[Merge M59] arg: Implement retry logic for transient errors

BUG=723835
TEST=Manually, emulated different errors and confirmed that opt in
     flow worked as expected.
TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2887093003
Cr-Commit-Position: refs/heads/master@{#472606}
(cherry picked from commit 6f3598e45c88e71ece4efc04e044aa1759c82cf9)
==========

to

==========
[Merge M59] arg: Implement retry logic for transient errors

BUG=723835
TEST=Manually, emulated different errors and confirmed that opt in
     flow worked as expected.
TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2887093003
Cr-Commit-Position: refs/heads/master@{#472606}
(cherry picked from commit 6f3598e45c88e71ece4efc04e044aa1759c82cf9)
==========

[khmel, 2017-05-19 00:05:29]

khmel@chromium.org changed reviewers:
- xiyuan@chromium.org

[khmel, 2017-05-19 00:05:40]

The CQ bit was checked by khmel@chromium.org

[commit-bot: I haz the power, 2017-05-19 00:06:56]

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, 2017-05-19 00:10:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495152340371230, "parent_rev":
"0fa9cda3c18d314dab4b971123f26cb5b9480344", "commit_rev":
"62a8cc8f4b943991e8365424d415ffe64a530220"}

[commit-bot: I haz the power, 2017-05-19 00:11:12]

Description was changed from

==========
[Merge M59] arg: Implement retry logic for transient errors

BUG=723835
TEST=Manually, emulated different errors and confirmed that opt in
     flow worked as expected.
TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2887093003
Cr-Commit-Position: refs/heads/master@{#472606}
(cherry picked from commit 6f3598e45c88e71ece4efc04e044aa1759c82cf9)
==========

to

==========
[Merge M59] arg: Implement retry logic for transient errors

BUG=723835
TEST=Manually, emulated different errors and confirmed that opt in
     flow worked as expected.
TBR=xiyuan@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review-Url: https://codereview.chromium.org/2887093003
Cr-Original-Commit-Position: refs/heads/master@{#472606}
Review-Url: https://codereview.chromium.org/2896513002
Cr-Commit-Position: refs/branch-heads/3071@{#624}
Cr-Branched-From:
a106f0abbf69dad349d4aaf4bcc4f5d376dd2377-refs/heads/master@{#464641}
Committed:
https://chromium.googlesource.com/chromium/src/+/62a8cc8f4b943991e8365424d415...
==========

[commit-bot: I haz the power, 2017-05-19 00:11:13]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/62a8cc8f4b943991e8365424d415...