Look for GenerateMipMapEXT

Change-Id: I1ced904f0929653aa9bac09fee86607533e28be6
Reviewed-on: https://skia-review.googlesource.com/7359
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed