Revert of cros: Test for overlapping ContinueSessionRestore calls

Revert of cros: Test for overlapping ContinueSessionRestore calls (patchset #1 id:1 of https://codereview.chromium.org/2658953002/ )

Reason for revert:
This new test fails flakily on the Linux ChromiumOS Tests (dbg)(1) bot.

See example failures:
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/22001
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/22005

Original issue's description:
> cros: Test for overlapping ContinueSessionRestore calls
> 
> OAuth2LoginManager::ContinueSessionRestore with strategy
> RESTORE_FROM_SAVED_OAUTH2_REFRESH_TOKEN would call
> TokenService::LoadCredentials that does not support
> multiple concurrent calls. Add a test to verify that it
> does not attempt to overlap LoadCredentials calls.
> 
> BUG=682695
> TEST=OAuth2Test.OverlappingContinueSessionRestore
> 
> Review-Url: https://codereview.chromium.org/2658953002
> Cr-Commit-Position: refs/heads/master@{#447020}
> Committed: https://chromium.googlesource.com/chromium/src/+/5555191b32d4d5e6b8b956e310e1eb64aa7bc188

TBR=jdufault@chromium.org,derat@chromium.org,xiyuan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=682695
Review-Url: https://codereview.chromium.org/2663063002
Cr-Commit-Position: refs/heads/master@{#447115}
Committed: https://chromium.googlesource.com/chromium/src/+/dfecbb4466fbfa9ab590b5a9917d9515ab4630c2

[tsergeant, 2017-01-30 23:56:05]

The CQ bit was checked by tsergeant@chromium.org

[tsergeant, 2017-01-30 23:56:06]

Created Revert of cros: Test for overlapping ContinueSessionRestore calls

[commit-bot: I haz the power, 2017-01-30 23:56:29]

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, 2017-01-30 23:58:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485820565746610, "parent_rev":
"a84f6044bfe3bc52dde4c2cdddbbc92be1b56ab1", "commit_rev":
"dfecbb4466fbfa9ab590b5a9917d9515ab4630c2"}

[commit-bot: I haz the power, 2017-01-30 23:58:39]

Description was changed from

==========
Revert of cros: Test for overlapping ContinueSessionRestore calls (patchset #1
id:1 of https://codereview.chromium.org/2658953002/ )

Reason for revert:
This new test fails flakily on the Linux ChromiumOS Tests (dbg)(1) bot.

See example failures:
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS...
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS...

Original issue's description:
> cros: Test for overlapping ContinueSessionRestore calls
> 
> OAuth2LoginManager::ContinueSessionRestore with strategy
> RESTORE_FROM_SAVED_OAUTH2_REFRESH_TOKEN would call
> TokenService::LoadCredentials that does not support
> multiple concurrent calls. Add a test to verify that it
> does not attempt to overlap LoadCredentials calls.
> 
> BUG=682695
> TEST=OAuth2Test.OverlappingContinueSessionRestore
> 
> Review-Url: https://codereview.chromium.org/2658953002
> Cr-Commit-Position: refs/heads/master@{#447020}
> Committed:
https://chromium.googlesource.com/chromium/src/+/5555191b32d4d5e6b8b956e310e1...

TBR=jdufault@chromium.org,derat@chromium.org,xiyuan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=682695
==========

to

==========
Revert of cros: Test for overlapping ContinueSessionRestore calls (patchset #1
id:1 of https://codereview.chromium.org/2658953002/ )

Reason for revert:
This new test fails flakily on the Linux ChromiumOS Tests (dbg)(1) bot.

See example failures:
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS...
https://luci-milo.appspot.com/buildbot/chromium.chromiumos/Linux%20ChromiumOS...

Original issue's description:
> cros: Test for overlapping ContinueSessionRestore calls
> 
> OAuth2LoginManager::ContinueSessionRestore with strategy
> RESTORE_FROM_SAVED_OAUTH2_REFRESH_TOKEN would call
> TokenService::LoadCredentials that does not support
> multiple concurrent calls. Add a test to verify that it
> does not attempt to overlap LoadCredentials calls.
> 
> BUG=682695
> TEST=OAuth2Test.OverlappingContinueSessionRestore
> 
> Review-Url: https://codereview.chromium.org/2658953002
> Cr-Commit-Position: refs/heads/master@{#447020}
> Committed:
https://chromium.googlesource.com/chromium/src/+/5555191b32d4d5e6b8b956e310e1...

TBR=jdufault@chromium.org,derat@chromium.org,xiyuan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=682695

Review-Url: https://codereview.chromium.org/2663063002
Cr-Commit-Position: refs/heads/master@{#447115}
Committed:
https://chromium.googlesource.com/chromium/src/+/dfecbb4466fbfa9ab590b5a9917d...
==========

[commit-bot: I haz the power, 2017-01-30 23:58:40]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/dfecbb4466fbfa9ab590b5a9917d...