Add EME support for new VP9 codec string in WebM.

Add EME support for new VP9 codec string in WebM.

Now supporing "video/webm; codecs=vp09...." in calls to EME's
requestForMediaKeySystemAccess(). Must run with the following flag:
--enable-new-vp9-codec-string.

This CL does not modify existing support for "video/mp4". To enable
in MP4 run with --enable-vp9-in-mp4.

Runtime flags are checked in MimeUtilInternal ParseVp9CodecID().

BUG=687627
Review-Url: https://codereview.chromium.org/2793163003
Cr-Commit-Position: refs/heads/master@{#462692}
Committed: https://chromium.googlesource.com/chromium/src/+/6cfb384ad0513ed6bdf6c6a5886ef5da0411b70a

[chcunningham, 2017-04-04 00:24:26]

The CQ bit was checked by chcunningham@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-04 00:24:50]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[chcunningham, 2017-04-04 00:25:56]

chcunningham@chromium.org changed reviewers:
+ hubbe@chromium.org

[commit-bot: I haz the power, 2017-04-04 01:50:37]

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

[commit-bot: I haz the power, 2017-04-04 01:50:38]

Dry run: Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[chcunningham, 2017-04-04 20:52:56]

The CQ bit was checked by chcunningham@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-04 20:53:55]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-04 22:58:58]

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

[commit-bot: I haz the power, 2017-04-04 22:58:59]

Dry run: This issue passed the CQ dry run.

[chcunningham, 2017-04-06 16:57:24]

Friendly ping.

[hubbe, 2017-04-06 19:01:26]

Code looks reasonable to me, but I think you should have it reviewed by someone
who is more familiar with EME as well.

[chcunningham, 2017-04-06 19:29:32]

chcunningham@chromium.org changed reviewers:
+ sandersd@chromium.org

[chcunningham, 2017-04-06 19:29:33]

+ Dan for EME expertise

[sandersd (OOO until July 31), 2017-04-06 22:08:13]

lgtm

[chcunningham, 2017-04-06 22:09:56]

The CQ bit was checked by chcunningham@chromium.org

[commit-bot: I haz the power, 2017-04-06 22:11:08]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-06 23:56:58]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1491516596015140,
"parent_rev": "5e5d1c1764d4ebbad4f51ab37f1d9341e6d26efb", "commit_rev":
"6cfb384ad0513ed6bdf6c6a5886ef5da0411b70a"}

[commit-bot: I haz the power, 2017-04-06 23:57:51]

Description was changed from

==========
Add EME support for new VP9 codec string in WebM.

Now supporing "video/webm; codecs=vp09...." in calls to EME's
requestForMediaKeySystemAccess(). Must run with the following flag:
--enable-new-vp9-codec-string.

This CL does not modify existing support for "video/mp4". To enable
in MP4 run with --enable-vp9-in-mp4.

Runtime flags are checked in MimeUtilInternal ParseVp9CodecID().

BUG=687627
==========

to

==========
Add EME support for new VP9 codec string in WebM.

Now supporing "video/webm; codecs=vp09...." in calls to EME's
requestForMediaKeySystemAccess(). Must run with the following flag:
--enable-new-vp9-codec-string.

This CL does not modify existing support for "video/mp4". To enable
in MP4 run with --enable-vp9-in-mp4.

Runtime flags are checked in MimeUtilInternal ParseVp9CodecID().

BUG=687627

Review-Url: https://codereview.chromium.org/2793163003
Cr-Commit-Position: refs/heads/master@{#462692}
Committed:
https://chromium.googlesource.com/chromium/src/+/6cfb384ad0513ed6bdf6c6a5886e...
==========

[commit-bot: I haz the power, 2017-04-06 23:57:52]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/6cfb384ad0513ed6bdf6c6a5886e...