Add dual source blending support for proper blending with coverage.

Review URL: http://codereview.appspot.com/4535088/



git-svn-id: http://skia.googlecode.com/svn/trunk/gyp@1390 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed
tree: 8b7c699df72d2126ab763e820317ab7350b4c06a
  1. common.gypi
  2. gyp_skia
  3. skia.gyp