Rename cast_receiver_impl to cast_receiver

Renaming gyp target to match with cast_sender.

TBR=hubbe@chromium.org

Review URL: https://codereview.chromium.org/27783002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229643 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229643
Fix a typo of condition check.

In CL https://codereview.chromium.org/26538011, it uses "if (!!default_provider)" to check whether default_provider is NULL, which is wrong.
Also add a check after getting TemplateURLService.

BUG=308397
TEST=None

Review URL: https://codereview.chromium.org/27790002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229644 0039d316-1c4b-4281-b951-d872f2087c98
Whitelist an additional app id for mediaGalleriesPrivate/musicManagerPrivate APIs.

BUG=308749

Review URL: https://codereview.chromium.org/28033002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229645 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229645