WebGL doesn't work on Windows with accelerated compositing. GRAPHICS_SURFACE is not necessary except for this compile error, and I'm pretty sure I shouldn't be using it at all. I'm not sure why, and this does not make it draw to the screen, but this fixes a compile error. The notImplemented in createOffScreenSurface is not hit. Also, ENABLE_GLIB_SUPPORT was removed in https://bugs.webkit.org/show_bug.cgi?id=104266 so as long as we're touching WTF, let's clean that up.
Created attachment 219442 [details] Patch
Comment on attachment 219442 [details] Patch Clearing flags on attachment: 219442 Committed r160725: <http://trac.webkit.org/changeset/160725>
All reviewed patches have been landed. Closing bug.