GitLab

A lot of GCM tests are flaky. Disabling the worst offenders.

Tests disabled:
GCMChannelStatusSyncerTest.DisableRestartAndEnable
CMDriverFunctionalTest.MessageReceived
GCMDriverFunctionalTest.MessageWithCollapseKeyReceived
GCMDriverInstanceIDTest.GCMClientNotReadyBeforeInstanceIDData
CMDriverFunctionalTest.RegisterAgainWithDifferentSenderIDs
GCMDriverFunctionalTest.RegisterAgainWithSameSenderIDs
GCMDriverFunctionalTest.RegisterError
GCMStatsRecorderImplTest.CheckinTest
GCMDriverFunctionalTest.RegisterAfterUnfinishedUnregister

TBR=peter

Bug: 1010462
Change-Id: Ibb6f80366d356cbd28fffb567095f282fbca12c8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1852445Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#704598}