Make GrFragmentProcessor auto-compare coord xforms.

src/gpu/effects/GrSingleTextureEffect.h

Index: src/gpu/effects/GrSingleTextureEffect.h
diff --git a/src/gpu/effects/GrSingleTextureEffect.h b/src/gpu/effects/GrSingleTextureEffect.h
index ad13c2edeb93e86617f1f14a2a66f8908de82c89..c16c088a1824b020e15656f01792aaf16025cc9d 100644
--- a/src/gpu/effects/GrSingleTextureEffect.h
+++ b/src/gpu/effects/GrSingleTextureEffect.h
@@ -38,9 +38,7 @@ protected:
      */
     bool hasSameTextureParamsMatrixAndSourceCoords(const GrSingleTextureEffect& other) const {
         // We don't have to check the accesses' swizzles because they are inferred from the texture.
-        return fTextureAccess == other.fTextureAccess &&
-               fCoordTransform.getMatrix().cheapEqualTo(other.fCoordTransform.getMatrix()) &&
-               fCoordTransform.sourceCoords() == other.fCoordTransform.sourceCoords();
+        return fTextureAccess == other.fTextureAccess;
     }
 
     /**