move full libvpx tree into deps to include license and gyp
BUG=55165
TEST=tools/licenses.py

Review URL: http://codereview.chromium.org/4341005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@64996 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed