Merge M52: "Freeze media time and audio rendering when the system suspends."

Merge M52: "Freeze media time and audio rendering when the system suspends."

Allows us to avoid unexpected differences between what the audio
renderer and video renderer think the current time is. Causes the
wall clock time calculations to return false for "is time moving."

With this information the video renderer (and other callers) can
accurately act upon frozen moments and not expire frames due to
a difference of opinion on what the current time is (audio only
updates its base every Render() call).

BUG=620478
TEST=new unittests

Review-Url: https://codereview.chromium.org/2072843002
Cr-Commit-Position: refs/heads/master@{#400454}
(cherry picked from commit e3fb958aa538c5b146afea7f9df498a579d3e5a4)

Committed: https://chromium.googlesource.com/chromium/src/+/190fbd2f4ce6ff7617a4b60b22723dee6b5ec4ce

[DaleCurtis, 2016-06-20 23:08:38]

Description was changed from

==========
Merge M52: "Freeze media time and audio rendering when the system suspends."

Allows us to avoid unexpected differences between what the audio
renderer and video renderer think the current time is. Causes the
wall clock time calculations to return false for "is time moving."

With this information the video renderer (and other callers) can
accurately act upon frozen moments and not expire frames due to
a difference of opinion on what the current time is (audio only
updates its base every Render() call).

BUG=620478
TEST=new unittests

Review-Url: https://codereview.chromium.org/2072843002
Cr-Commit-Position: refs/heads/master@{#400454}
(cherry picked from commit e3fb958aa538c5b146afea7f9df498a579d3e5a4)
==========

to

==========
Merge M52: "Freeze media time and audio rendering when the system suspends."

Allows us to avoid unexpected differences between what the audio
renderer and video renderer think the current time is. Causes the
wall clock time calculations to return false for "is time moving."

With this information the video renderer (and other callers) can
accurately act upon frozen moments and not expire frames due to
a difference of opinion on what the current time is (audio only
updates its base every Render() call).

BUG=620478
TEST=new unittests

Review-Url: https://codereview.chromium.org/2072843002
Cr-Commit-Position: refs/heads/master@{#400454}
(cherry picked from commit e3fb958aa538c5b146afea7f9df498a579d3e5a4)

Committed:
https://chromium.googlesource.com/chromium/src/+/190fbd2f4ce6ff7617a4b60b2272...
==========

[DaleCurtis, 2016-06-20 23:08:40]

Committed patchset #1 (id:1) manually as
190fbd2f4ce6ff7617a4b60b22723dee6b5ec4ce.