Improve data sanitization of initialization data

Improve data sanitization of initialization data

Data sanitization of the initialization data now verifies data is
provided and for WebM, that the size is not larger than a single
key ID.

BUG=622840
TEST=EME tests pass

checks for empty initData or WebM length

Committed: https://crrev.com/16f875e5e84f9e1c084d5ca0eecb3ba606be8861
Cr-Commit-Position: refs/heads/master@{#403053}

[jrummell, 2016-06-27 17:14:15]

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

[jrummell, 2016-06-27 17:14:16]

PTAL.

[ddorwin, 2016-06-27 17:23:11]

lgtm

[jrummell, 2016-06-28 22:08:54]

The CQ bit was checked by jrummell@chromium.org

[commit-bot: I haz the power, 2016-06-28 22:11:16]

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, 2016-06-28 23:20:05]

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

[commit-bot: I haz the power, 2016-06-28 23:20:06]

Try jobs failed on following builders:
  mac_chromium_rel_ng on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[jrummell, 2016-06-29 20:51:52]

The CQ bit was checked by jrummell@chromium.org

[commit-bot: I haz the power, 2016-06-29 20:52:29]

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, 2016-06-30 01:19:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-30 01:19:24]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-06-30 01:22:09]

Description was changed from

==========
Improve data sanitization of initialization data

Data sanitization of the initialization data now verifies data is
provided and for WebM, that the size is not larger than a single
key ID.

BUG=622840
TEST=EME tests pass

checks for empty initData or WebM length
==========

to

==========
Improve data sanitization of initialization data

Data sanitization of the initialization data now verifies data is
provided and for WebM, that the size is not larger than a single
key ID.

BUG=622840
TEST=EME tests pass

checks for empty initData or WebM length

Committed: https://crrev.com/16f875e5e84f9e1c084d5ca0eecb3ba606be8861
Cr-Commit-Position: refs/heads/master@{#403053}
==========

[commit-bot: I haz the power, 2016-06-30 01:22:10]

Patchset 1 (id:??) landed as
https://crrev.com/16f875e5e84f9e1c084d5ca0eecb3ba606be8861
Cr-Commit-Position: refs/heads/master@{#403053}