Disable pausing background video-only players on desktop.

Disable pausing background video-only players on desktop.

The intent is to merge this to M58 to launch the background video
optimizations that do both pausing for video-only and disabling the
video track for audible videos.

BUG=699106
TEST=existing tests

Review-Url: https://codereview.chromium.org/2734963003
Cr-Commit-Position: refs/heads/master@{#455187}
(cherry picked from commit 60588ea13e075f43e47cd97d6911b8c50ce5d579)

Review-Url: https://codereview.chromium.org/2741083002 .
Cr-Commit-Position: refs/branch-heads/3029@{#93}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/c784820b54f8eeda51d9f02de7d2b9792894f34b

[whywhat, 2017-03-09 21:47:23]

Description was changed from

==========
Disable pausing background video-only players on desktop.

The intent is to merge this to M58 to launch the background video
optimizations that do both pausing for video-only and disabling the
video track for audible videos.

BUG=699106
TEST=existing tests

Review-Url: https://codereview.chromium.org/2734963003
Cr-Commit-Position: refs/heads/master@{#455187}
(cherry picked from commit 60588ea13e075f43e47cd97d6911b8c50ce5d579)
==========

to

==========
Disable pausing background video-only players on desktop.

The intent is to merge this to M58 to launch the background video
optimizations that do both pausing for video-only and disabling the
video track for audible videos.

BUG=699106
TEST=existing tests

Review-Url: https://codereview.chromium.org/2734963003
Cr-Commit-Position: refs/heads/master@{#455187}
(cherry picked from commit 60588ea13e075f43e47cd97d6911b8c50ce5d579)

Review-Url: https://codereview.chromium.org/2741083002 .
Cr-Commit-Position: refs/branch-heads/3029@{#93}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/c784820b54f8eeda51d9f02de7d2...
==========

[whywhat, 2017-03-09 21:47:24]

Committed patchset #1 (id:1) manually as
c784820b54f8eeda51d9f02de7d2b9792894f34b.