Skip non-AA intersect rects in GrReducedClip

src/gpu/GrReducedClip.h

Index: src/gpu/GrReducedClip.h
diff --git a/src/gpu/GrReducedClip.h b/src/gpu/GrReducedClip.h
index a867483de80c66d3259a91ca52b8b82bac06cd63..c3f94a0dff5103ac8cb61a6bd22247f3ce790cf7 100644
--- a/src/gpu/GrReducedClip.h
+++ b/src/gpu/GrReducedClip.h
@@ -61,6 +61,9 @@ public:
     InitialState initialState() const { return fInitialState; }
 
 private:
+    void walkStack(const SkClipStack&, const SkRect& queryBounds);
+    bool intersectIBounds(const SkIRect&);
+
     SkIRect        fIBounds;
     bool           fHasIBounds;
     ElementList    fElements;