Add missing CdmKeyInformation enum values

Add missing CdmKeyInformation enum values

Latest EME spec has added new values to MediaKeyStatus
(https://w3c.github.io/encrypted-media/#idl-def-MediaKeyStatus),
so pass these though Pepper. Changes to the CDM interface will
come later.

BUG=465592
TEST=none, as the new values not currently used

Committed: https://crrev.com/7c9fe86c47dd929b4c78ecf9a6492a243739cc99
Cr-Commit-Position: refs/heads/master@{#320982}

[jrummell, 2015-03-13 21:56:55]

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

[jrummell, 2015-03-13 21:56:56]

PTAL.

[sandersd (OOO until July 31), 2015-03-13 22:15:09]

lgtm

[jrummell, 2015-03-13 23:04:58]

jrummell@chromium.org changed reviewers:
+ dcheng@chromium.org, dmichael@chromium.org

[jrummell, 2015-03-13 23:04:58]

+dcheng@, +dmichael@ for OWNERS review.

Just adding values to an enum passed through Pepper.

[dcheng, 2015-03-13 23:25:47]

rs lgtm

[jrummell, 2015-03-16 20:45:19]

ping dmichael@ for OWNERS review. Just adding values to an enum passed through
Pepper.

[dmichael (off chromium), 2015-03-16 21:59:16]

lgtm

[jrummell, 2015-03-16 22:04:06]

The CQ bit was checked by jrummell@chromium.org

[commit-bot: I haz the power, 2015-03-16 22:04:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1005213002/1

[commit-bot: I haz the power, 2015-03-17 02:41:31]

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

[commit-bot: I haz the power, 2015-03-17 02:41:32]

Try jobs failed on following builders:
  win_chromium_rel_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_...)

[jrummell, 2015-03-17 20:15:44]

The CQ bit was checked by jrummell@chromium.org

[jrummell, 2015-03-17 20:15:44]

The patchset sent to the CQ was uploaded after l-g-t-m from
dmichael@chromium.org, dcheng@chromium.org, sandersd@chromium.org
Link to the patchset: https://codereview.chromium.org/1005213002/#ps20001
(title: "Rename enum for Windows")

[commit-bot: I haz the power, 2015-03-17 20:16:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1005213002/20001

[commit-bot: I haz the power, 2015-03-17 21:47:05]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-17 21:47:43]

Patchset 2 (id:??) landed as
https://crrev.com/7c9fe86c47dd929b4c78ecf9a6492a243739cc99
Cr-Commit-Position: refs/heads/master@{#320982}