Cleanup GrGLInterface factories in Chromium in order to remove old names and workaround code in Skia.

Skia-side change at https://codereview.chromium.org/149533002/

Review URL: https://codereview.chromium.org/143263014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254157 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254157