Skip non-AA intersect rects in GrReducedClip

src/gpu/GrReducedClip.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrReducedClip_DEFINED
 #define GrReducedClip_DEFINED
 
@@ skipping 43 matching lines @@
     bool requiresAA() const { return fRequiresAA; }
 
     enum class InitialState : bool {
         kAllIn,
         kAllOut
     };
 
     InitialState initialState() const { return fInitialState; }
 
 private:
+    void walkStack(const SkClipStack&, const SkRect& queryBounds);
+    bool intersectIBounds(const SkIRect&);
+
     SkIRect        fIBounds;
     bool           fHasIBounds;
     ElementList    fElements;
     int32_t        fElementsGenID;
     bool           fRequiresAA;
     InitialState   fInitialState;
 };
 
 #endif