Add browser test for vp9 subsample encrypted content

Add browser test for vp9 subsample encrypted content (http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block-format)

Bug=630344
Committed: https://crrev.com/2cf59b5b692ff2496e03baba36349c5a4f920344
Cr-Commit-Position: refs/heads/master@{#424261}

[kqyang, 2016-09-15 01:19:45]

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

[commit-bot: I haz the power, 2016-09-15 01:20:25]

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

[kqyang, 2016-09-15 01:24:14]

Description was changed from

==========
Add browser test for vp9 subsample encrypted content

BUG=
==========

to

==========
Add browser test for vp9 subsample encrypted content
==========

[kqyang, 2016-09-15 02:10:26]

Description was changed from

==========
Add browser test for vp9 subsample encrypted content
==========

to

==========
Add browser test for vp9 subsample encrypted content

Bug=630344
==========

[kqyang, 2016-09-15 02:10:26]

kqyang@chromium.org changed reviewers:
+ ddorwin@chromium.org

[kqyang, 2016-09-15 02:11:29]

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

[commit-bot: I haz the power, 2016-09-15 02:11:45]

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, 2016-09-15 03:49:29]

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

[commit-bot: I haz the power, 2016-09-15 03:49:30]

Dry run: This issue passed the CQ dry run.

[kqyang, 2016-10-06 19:09:51]

kqyang@chromium.org changed reviewers:
+ xhwang@chromium.org

[kqyang, 2016-10-06 19:09:52]

+xhwang to review the code. Thanks.

[xhwang, 2016-10-07 19:23:43]

Thanks and sorry for the delay. LGTM % nit

Also, could you please provide a link to the spec in the CL description?

https://chromiumcodereview.appspot.com/2345463004/diff/20001/media/test/data/...
File media/test/data/README (right):

https://chromiumcodereview.appspot.com/2345463004/diff/20001/media/test/data/...
media/test/data/README:73: bear-320x240-v-vp9_subsample_enc-v.webm -
bear-vp9.webm VP9 video only encrypted using key ID [1] and key [2] with
subsample encryption.
Do you have any detail about what kind of subsample pattern is used etc?

[kqyang, 2016-10-07 20:56:07]

Description was changed from

==========
Add browser test for vp9 subsample encrypted content

Bug=630344
==========

to

==========
Add browser test for vp9 subsample encrypted content
(http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block...)

Bug=630344
==========

[kqyang, 2016-10-07 20:57:40]

Thanks for reviewing.

On 2016/10/07 19:23:43, xhwang wrote:
> Thanks and sorry for the delay. LGTM % nit
> 
> Also, could you please provide a link to the spec in the CL description?
> 
>
https://chromiumcodereview.appspot.com/2345463004/diff/20001/media/test/data/...
> File media/test/data/README (right):
> 
>
https://chromiumcodereview.appspot.com/2345463004/diff/20001/media/test/data/...
> media/test/data/README:73: bear-320x240-v-vp9_subsample_enc-v.webm -
> bear-vp9.webm VP9 video only encrypted using key ID [1] and key [2] with
> subsample encryption.
> Do you have any detail about what kind of subsample pattern is used etc?

How the subsamples are generated are defined in the spec and varies from sample
to sample. Added a link to the spec in README file.

[xhwang, 2016-10-07 21:51:44]

lgtm

[kqyang, 2016-10-10 20:19:40]

The CQ bit was checked by kqyang@chromium.org

[commit-bot: I haz the power, 2016-10-10 20:20:12]

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, 2016-10-10 22:17:02]

Description was changed from

==========
Add browser test for vp9 subsample encrypted content
(http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block...)

Bug=630344
==========

to

==========
Add browser test for vp9 subsample encrypted content
(http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block...)

Bug=630344
==========

[commit-bot: I haz the power, 2016-10-10 22:17:03]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-10-10 22:20:50]

Description was changed from

==========
Add browser test for vp9 subsample encrypted content
(http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block...)

Bug=630344
==========

to

==========
Add browser test for vp9 subsample encrypted content
(http://www.webmproject.org/docs/webm-encryption/#46-subsample-encrypted-block...)

Bug=630344

Committed: https://crrev.com/2cf59b5b692ff2496e03baba36349c5a4f920344
Cr-Commit-Position: refs/heads/master@{#424261}
==========

[commit-bot: I haz the power, 2016-10-10 22:20:51]

Patchset 3 (id:??) landed as
https://crrev.com/2cf59b5b692ff2496e03baba36349c5a4f920344
Cr-Commit-Position: refs/heads/master@{#424261}