Remove unused video decode acceleration headers.

We don't need them anymore after the video decode acceleration warmup cleanup.

BUG=321209
TEST=compiles.

Review URL: https://codereview.chromium.org/82993004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236901 0039d316-1c4b-4281-b951-d872f2087c98
Cleanup: Do not use wstrings in the cloud print dialog.

BUG=23581

Review URL: https://codereview.chromium.org/83203004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236902 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236902