GraphicsContext3D.h contains some code that is enabled for platforms that use OpenGL ES 2, but Windows is currently not in the list. It should be.
Created attachment 205838 [details] Patch
Comment on attachment 205838 [details] Patch Clearing flags on attachment: 205838 Committed r152276: <http://trac.webkit.org/changeset/152276>
All reviewed patches have been landed. Closing bug.