Access MediaKeyErrorCode from WebMediaPlayerEncryptedMediaClient

Access MediaKeyErrorCode from WebMediaPlayerEncryptedMediaClient

EncryptedMedia functionality has been moved from WebMediaPlayerClient
to WebMediaPlayerEncryptedMediaClient, so access the MediaKeyErrorCode
using WebMediaPlayerEncryptedMediaClient

BUG=350571, 310466
Committed: https://crrev.com/04343bd4f9862530e0df7ecc86ef1249fa9c4c9e
Cr-Commit-Position: refs/heads/master@{#338850}

[Srirama, 2015-07-15 11:32:19]

srirama.m@samsung.com changed reviewers:
+ ddorwin@chromium.org, philipj@opera.com

[Srirama, 2015-07-15 11:32:19]

PTAL.
This is required to fix android build issue in
https://codereview.chromium.org/1055503002/

[philipj_slow, 2015-07-15 13:10:03]

philipj@opera.com changed reviewers:
+ qinmin@chromium.org

[philipj_slow, 2015-07-15 13:10:04]

Non-owner LGTM, adding qinmin@ for owners review.

[qinmin, 2015-07-15 14:02:40]

lgtm

[Srirama, 2015-07-15 14:03:18]

The CQ bit was checked by srirama.m@samsung.com

[commit-bot: I haz the power, 2015-07-15 14:03:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1231273005/1

[commit-bot: I haz the power, 2015-07-15 14:07:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-15 14:08:35]

Patchset 1 (id:??) landed as
https://crrev.com/04343bd4f9862530e0df7ecc86ef1249fa9c4c9e
Cr-Commit-Position: refs/heads/master@{#338850}