Consollidate tests for SequenceManagerImpl.

Basically enable all tests for MessageLoop too. So we now run most of
the tests with MessageLoop, MessagePump and a MockTaskRunner.

Also add some pretty print methods to make the test names look nicer.

Bug: 891670
Change-Id: I3ace4d674b4343a6ed441ed77e21fe9d00f589d1
Reviewed-on: https://chromium-review.googlesource.com/c/1473273
Commit-Queue: Carlos Caballero <carlscab@google.com>
Reviewed-by: Alexander Timin <altimin@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Cr-Commit-Position: refs/heads/master@{#632594}
1 file changed