Rename keyNeeded() to encrypted() in Chromium.

Rename keyNeeded() to encrypted() in Chromium.

BUG=224786
Committed: https://crrev.com/efbe2dfcf88daa9e92d636bdfe35f9dc3e1a8661
Cr-Commit-Position: refs/heads/master@{#299986}

[sandersd (OOO until July 31), 2014-10-14 18:05:28]

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

[jrummell, 2014-10-14 18:43:54]

lgtm

[ddorwin, 2014-10-14 18:54:39]

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

[ddorwin, 2014-10-14 18:54:40]

LGTM for the API change. Comments for potential internal changes later.

https://codereview.chromium.org/616113002/diff/1/content/renderer/media/crypt...
File content/renderer/media/crypto/encrypted_media_player_support_impl.cc
(right):

https://codereview.chromium.org/616113002/diff/1/content/renderer/media/crypt...
content/renderer/media/crypto/encrypted_media_player_support_impl.cc:375: void
EncryptedMediaPlayerSupportImpl::OnNeedKey(const std::string& type,
We should update this too sometime.
Note that we have a UMA with this name at 383, though.

https://codereview.chromium.org/616113002/diff/1/content/renderer/media/crypt...
content/renderer/media/crypto/encrypted_media_player_support_impl.cc:375: void
EncryptedMediaPlayerSupportImpl::OnNeedKey(const std::string& type,
|type| is a bit ambiguous.

[sandersd (OOO until July 31), 2014-10-16 20:25:50]

The CQ bit was checked by sandersd@chromium.org

[commit-bot: I haz the power, 2014-10-16 20:26:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/616113002/1

[commit-bot: I haz the power, 2014-10-16 22:03:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-16 22:03:48]

Patchset 1 (id:??) landed as
https://crrev.com/efbe2dfcf88daa9e92d636bdfe35f9dc3e1a8661
Cr-Commit-Position: refs/heads/master@{#299986}