Fixing flaky SignalThread tests.

Fixing flaky SignalThread tests.

Using an "EXPECT_WAIT" pattern with a long timeout rather than calling
"SleepMs" with a margin of 250ms.

BUG=webrtc:5953
Committed: https://crrev.com/d50f4f331e8cc2a88f51db083975fceb76448e83
Cr-Commit-Position: refs/heads/master@{#13040}

[Taylor Brandstetter, 2016-06-01 23:10:07]

deadbeef@webrtc.org changed reviewers:
+ pthatcher@webrtc.org

[pthatcher1, 2016-06-03 00:30:45]

lgtm

[Taylor Brandstetter, 2016-06-03 15:43:40]

The CQ bit was checked by deadbeef@webrtc.org

[Taylor Brandstetter, 2016-06-03 15:43:40]

The patchset sent to the CQ was uploaded after l-g-t-m from pthatcher@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2029853002/#ps20001 (title:
"Merge with master, un-disable flaky tests.")

[commit-bot: I haz the power, 2016-06-03 15:43:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2029853002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2029853002/20001

[commit-bot: I haz the power, 2016-06-03 17:31:03]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-03 17:31:11]

Description was changed from

==========
Fixing flaky SignalThread tests.

Using an "EXPECT_WAIT" pattern with a long timeout rather than calling
"SleepMs" with a margin of 250ms.

BUG=webrtc:5953
==========

to

==========
Fixing flaky SignalThread tests.

Using an "EXPECT_WAIT" pattern with a long timeout rather than calling
"SleepMs" with a margin of 250ms.

BUG=webrtc:5953

Committed: https://crrev.com/d50f4f331e8cc2a88f51db083975fceb76448e83
Cr-Commit-Position: refs/heads/master@{#13040}
==========

[commit-bot: I haz the power, 2016-06-03 17:31:12]

Patchset 2 (id:??) landed as
https://crrev.com/d50f4f331e8cc2a88f51db083975fceb76448e83
Cr-Commit-Position: refs/heads/master@{#13040}