[Blink, Media] Added controlsList to HTMLMediaElement

[Blink, Media] Added controlsList to HTMLMediaElement

Adds a DOMTokenList backed controlsList/controlslist attribute to HTMLMediaElement with three keywords: nodownload, nofullscreen and noremoteplayback.

Spec change is discussed here: https://github.com/whatwg/html/issues/2293
Spec change PR is here: https://github.com/whatwg/html/pull/2426
WICG repo for the API is here: https://github.com/WICG/controls-list
Intent to ship is here: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/tFuQd3AcsIQ/discussion

BUG=650174, 685018
TEST=manual+layout tests

Review-Url: https://codereview.chromium.org/2657723002
Cr-Commit-Position: refs/heads/master@{#455926}
(cherry picked from commit caca06866f37c79df89cab9a634bb7497177236e)

Review-Url: https://codereview.chromium.org/2741933004 .
Cr-Commit-Position: refs/branch-heads/3029@{#132}
Cr-Branched-From: 939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed: https://chromium.googlesource.com/chromium/src/+/1f92e23e416a507c94523e120d1d4608b4ef087f

[whywhat, 2017-03-11 14:27:51]

Description was changed from

==========
[Blink, Media] Added controlsList to HTMLMediaElement

Adds a DOMTokenList backed controlsList/controlslist attribute to
HTMLMediaElement with three keywords: nodownload, nofullscreen and
noremoteplayback.

Spec change is discussed here: https://github.com/whatwg/html/issues/2293
Spec change PR is here: https://github.com/whatwg/html/pull/2426
WICG repo for the API is here: https://github.com/WICG/controls-list
Intent to ship is here:
https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/tFuQd3AcsIQ/...

BUG=650174,685018
TEST=manual+layout tests

Review-Url: https://codereview.chromium.org/2657723002
Cr-Commit-Position: refs/heads/master@{#455926}
(cherry picked from commit caca06866f37c79df89cab9a634bb7497177236e)
==========

to

==========
[Blink, Media] Added controlsList to HTMLMediaElement

Adds a DOMTokenList backed controlsList/controlslist attribute to
HTMLMediaElement with three keywords: nodownload, nofullscreen and
noremoteplayback.

Spec change is discussed here: https://github.com/whatwg/html/issues/2293
Spec change PR is here: https://github.com/whatwg/html/pull/2426
WICG repo for the API is here: https://github.com/WICG/controls-list
Intent to ship is here:
https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/tFuQd3AcsIQ/...

BUG=650174,685018
TEST=manual+layout tests

Review-Url: https://codereview.chromium.org/2657723002
Cr-Commit-Position: refs/heads/master@{#455926}
(cherry picked from commit caca06866f37c79df89cab9a634bb7497177236e)

Review-Url: https://codereview.chromium.org/2741933004 .
Cr-Commit-Position: refs/branch-heads/3029@{#132}
Cr-Branched-From:
939b32ee5ba05c396eef3fd992822fcca9a2e262-refs/heads/master@{#454471}
Committed:
https://chromium.googlesource.com/chromium/src/+/1f92e23e416a507c94523e120d1d...
==========

[whywhat, 2017-03-11 14:27:52]

Committed patchset #1 (id:1) manually as
1f92e23e416a507c94523e120d1d4608b4ef087f (tree was closed).