Adds Layer as a class between View and the Texture.

BUG=none
TEST=none
[email protected],[email protected]

Review URL: http://codereview.chromium.org/7189067

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@89880 0039d316-1c4b-4281-b951-d872f2087c98
13 files changed