Fix mixed samples stencil clip

src/gpu/GrClipMaskManager.h

Index: src/gpu/GrClipMaskManager.h
diff --git a/src/gpu/GrClipMaskManager.h b/src/gpu/GrClipMaskManager.h
index 98fd3af351c355c5f0116f11790c635c7e8e11ae..a0d742769ca9a4fca81dfaaea8b3c01eb2e53106 100644
--- a/src/gpu/GrClipMaskManager.h
+++ b/src/gpu/GrClipMaskManager.h
@@ -33,13 +33,23 @@ class SkPath;
  */
 class GrAppliedClip : public SkNoncopyable {
 public:
-    GrAppliedClip() {}
+    GrAppliedClip() : fIsCoCenteredMultisampledDraw(false) {}
+
     const GrFragmentProcessor* clipCoverageFragmentProcessor() const { return fClipCoverageFP; }
     const GrScissorState& scissorState() const { return fScissorState; }
 
+    /**
+     * This is used to perform a multisampled clip test when the draw requires MSAA to be disabled.
+     * It will allow the stencil test to run multisampled by turning on hardware MSAA, but co-locate
+     * the draw's samples at pixel center so it will still feel like MSAA is disabled.
+     */
+    bool isCoCenteredMultisampledDraw() const { return fIsCoCenteredMultisampledDraw; }
+
 private:
     SkAutoTUnref<const GrFragmentProcessor> fClipCoverageFP;
     GrScissorState                          fScissorState;
+    bool                                    fIsCoCenteredMultisampledDraw;
+
     friend class GrClipMaskManager;
 
     typedef SkNoncopyable INHERITED;