Introduce WebMediaSession

Introduce WebMediaSession

WebMediaSession is the API enabling web exposed MediaSession objects
to control platform implementations of media session related
functionality.

Implementation will begin with Android and other platforms will be
added later.

Re-land of https://codereview.chromium.org/1370453002/ with
https://code.google.com/p/chromium/issues/detail?id=546394 fixed.

BUG=497735, 546394
Review URL: https://codereview.chromium.org/1370453002

Cr-Commit-Position: refs/heads/master@{#355058}

Committed: https://crrev.com/50137b694146202f274c2d0f74d3c9ab4d228979
Cr-Commit-Position: refs/heads/master@{#355766}

[davve, 2015-10-22 13:33:53]

The CQ bit was checked by davve@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2015-10-22 13:34:20]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415923003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415923003/1

[davve, 2015-10-22 15:11:59]

Description was changed from

==========
Introduce WebMediaSession

WebMediaSession is the API enabling web exposed MediaSession objects
to control platform implementations of media session related
functionality.

Implementation will begin with Android and other platforms will be
added later.

BUG=497735

Review URL: https://codereview.chromium.org/1370453002

Cr-Commit-Position: refs/heads/master@{#355058}
==========

to

==========
Introduce WebMediaSession

WebMediaSession is the API enabling web exposed MediaSession objects
to control platform implementations of media session related
functionality.

Implementation will begin with Android and other platforms will be
added later.

Re-land of https://codereview.chromium.org/1370453002/ with
https://code.google.com/p/chromium/issues/detail?id=546394 fixed.

BUG=497735

Review URL: https://codereview.chromium.org/1370453002

Cr-Commit-Position: refs/heads/master@{#355058}
==========

[davve, 2015-10-22 15:12:19]

Description was changed from

==========
Introduce WebMediaSession

WebMediaSession is the API enabling web exposed MediaSession objects
to control platform implementations of media session related
functionality.

Implementation will begin with Android and other platforms will be
added later.

Re-land of https://codereview.chromium.org/1370453002/ with
https://code.google.com/p/chromium/issues/detail?id=546394 fixed.

BUG=497735

Review URL: https://codereview.chromium.org/1370453002

Cr-Commit-Position: refs/heads/master@{#355058}
==========

to

==========
Introduce WebMediaSession

WebMediaSession is the API enabling web exposed MediaSession objects
to control platform implementations of media session related
functionality.

Implementation will begin with Android and other platforms will be
added later.

Re-land of https://codereview.chromium.org/1370453002/ with
https://code.google.com/p/chromium/issues/detail?id=546394 fixed.

BUG=497735, 546394

Review URL: https://codereview.chromium.org/1370453002

Cr-Commit-Position: refs/heads/master@{#355058}
==========

[davve, 2015-10-22 15:23:53]

davve@opera.com changed reviewers:
+ avayvod@chromium.org, jochen@chromium.org, mlamouri@chromium.org,
philipj@opera.com

[davve, 2015-10-22 15:23:54]

As written in the description, this is a re-upload of

https://codereview.chromium.org/1370453002/

which was reverted because of memory leaks in tests, fixed in
this CL.

There are two changes compared to the previous CL:

One is in
third_party/WebKit/Source/modules/mediasession/MediaSessionTest.cpp
and fixes the leak.

The other one is in
third_party/WebKit/LayoutTests/platform/android/virtual/mediasession/media/mediasession/
expected files. The whitespace now match what actually is
outputted on Android. I've actually managed to run layout tests
on Android since the last CL was committed.

(And yes, I missed passing --no-find-copies to git cl upload. I don't think it
matters, but I'll gladly re-upload if any of you want to.)

[whywhat, 2015-10-22 15:29:29]

lgtm

[commit-bot: I haz the power, 2015-10-22 15:41:39]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-10-22 15:41:40]

Dry run: This issue passed the CQ dry run.

[philipj_slow, 2015-10-23 08:35:12]

lgtm

[mlamouri (slow - plz ping), 2015-10-23 09:56:54]

still lgtm

[jochen (gone - plz use gerrit), 2015-10-23 12:07:02]

lgtm

[davve, 2015-10-23 12:08:22]

The CQ bit was checked by davve@opera.com

[commit-bot: I haz the power, 2015-10-23 12:08:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1415923003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1415923003/1

[commit-bot: I haz the power, 2015-10-23 12:15:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-23 12:16:28]

Patchset 1 (id:??) landed as
https://crrev.com/50137b694146202f274c2d0f74d3c9ab4d228979
Cr-Commit-Position: refs/heads/master@{#355766}