Add channel and gl_vendor to GpuBlacklist.

BUG=91874
TEST=unittest
Review URL: http://codereview.chromium.org/7826019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99589 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed