Implement OnLegacySessionError() in CdmAdapter.

Implement OnLegacySessionError() in CdmAdapter.

This is the same as OnSessionError() in CDM_6 implementation. It's needed to
properly support prefixed EME API.

Also roll src/media/cdm/ppapi/api 09203a7:4aca594 (svn 293431:293568)
Summary of changes available at:
https://chromium.googlesource.com/chromium/cdm/+log/09203a7..4aca594

BUG=428384
Committed: https://crrev.com/902ff561fa17e181811392a222b0ecf0c8d53cdc
Cr-Commit-Position: refs/heads/master@{#310636}

[xhwang, 2015-01-08 06:18:23]

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

[xhwang, 2015-01-08 06:18:24]

This CL is based on jrummell's CL: https://codereview.chromium.org/811923002/

PTAL

[ddorwin, 2015-01-08 17:21:33]

LGTM. Thanks!

[jrummell, 2015-01-08 17:46:04]

Other than the typo, lgtm.

https://codereview.chromium.org/820133003/diff/1/media/cdm/ppapi/cdm_adapter.cc
File media/cdm/ppapi/cdm_adapter.cc (right):

https://codereview.chromium.org/820133003/diff/1/media/cdm/ppapi/cdm_adapter....
media/cdm/ppapi/cdm_adapter.cc:822: OnSessionEror(session_id, session_id_size,
error, system_code, error_message,
Eror? Have we had this spelling error in the code all along?

[xhwang, 2015-01-08 17:49:23]

comments addressed

[xhwang1, 2015-01-08 17:49:29]

xhwang@google.com changed reviewers:
+ xhwang@google.com

[xhwang1, 2015-01-08 17:49:29]

https://codereview.chromium.org/820133003/diff/1/media/cdm/ppapi/cdm_adapter.cc
File media/cdm/ppapi/cdm_adapter.cc (right):

https://codereview.chromium.org/820133003/diff/1/media/cdm/ppapi/cdm_adapter....
media/cdm/ppapi/cdm_adapter.cc:822: OnSessionEror(session_id, session_id_size,
error, system_code, error_message,
On 2015/01/08 17:46:03, jrummell wrote:
> Eror? Have we had this spelling error in the code all along?

Good catch. Fixed.

[xhwang, 2015-01-08 22:38:35]

The CQ bit was checked by xhwang@chromium.org

[commit-bot: I haz the power, 2015-01-08 22:38:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/820133003/20001

[commit-bot: I haz the power, 2015-01-09 00:11:42]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-01-09 00:13:08]

Patchset 2 (id:??) landed as
https://crrev.com/902ff561fa17e181811392a222b0ecf0c8d53cdc
Cr-Commit-Position: refs/heads/master@{#310636}