Backout 8f213db8fe7f and 31399fd0cb5b (Bug 791432) on a CLOSED TREE on the theory that maybe WebGL changes could have changed graphics state in a way that caused the Android reftest-4 failures on SVG gradient tests.
Backout ccf23b56150e (bug 832576) on a CLOSED TREE on the theory that maybe WebGL changes could have changed graphics state in a way that caused the Android reftest-4 failures on SVG gradient tests.