Add a timeout on the EG DrainUntilIdle

Add a timeout on the EG DrainUntilIdle

This CL adds a timeout of the cleanup functions of the ChromeTestCase.
The cleanup functions wait for the UI thread and waits for both the UI
and idling resources to idle.
Without a timeout, this function hangs the application forever.

BUG=686069
Review-Url: https://codereview.chromium.org/2652343005
Cr-Commit-Position: refs/heads/master@{#446663}
Committed: https://chromium.googlesource.com/chromium/src/+/b3fe115b5f89f0ef92ae9b544db8294ebb5411e4

[gambard, 2017-01-27 14:00:59]

gambard@chromium.org changed reviewers:
+ baxley@chromium.org, rohitrao@chromium.org

[gambard, 2017-01-27 14:01:00]

baxley: TBR
rohitrao: PTAL

[rohitrao (ping after 24h), 2017-01-27 14:04:39]

lgtm

[gambard, 2017-01-27 14:05:02]

The CQ bit was checked by gambard@chromium.org

[commit-bot: I haz the power, 2017-01-27 14:05:22]

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, 2017-01-27 14:15:09]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485525902681720, "parent_rev":
"d485f3fa2f0063640ca4acdcad20ac1c13ee8115", "commit_rev":
"b3fe115b5f89f0ef92ae9b544db8294ebb5411e4"}

[commit-bot: I haz the power, 2017-01-27 14:15:46]

Description was changed from

==========
Add a timeout on the EG DrainUntilIdle

This CL adds a timeout of the cleanup functions of the ChromeTestCase.
The cleanup functions wait for the UI thread and waits for both the UI
and idling resources to idle.
Without a timeout, this function hangs the application forever.

BUG=686069
==========

to

==========
Add a timeout on the EG DrainUntilIdle

This CL adds a timeout of the cleanup functions of the ChromeTestCase.
The cleanup functions wait for the UI thread and waits for both the UI
and idling resources to idle.
Without a timeout, this function hangs the application forever.

BUG=686069

Review-Url: https://codereview.chromium.org/2652343005
Cr-Commit-Position: refs/heads/master@{#446663}
Committed:
https://chromium.googlesource.com/chromium/src/+/b3fe115b5f89f0ef92ae9b544db8...
==========

[commit-bot: I haz the power, 2017-01-27 14:15:47]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/b3fe115b5f89f0ef92ae9b544db8...