Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrConvexPolyEffect.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrConvexPolyEffect_DEFINED
 #define GrConvexPolyEffect_DEFINED
 
@@ skipping 52 matching lines @@
     static const char* Name() { return "ConvexPoly"; }
 
     GrPrimitiveEdgeType getEdgeType() const { return fEdgeType; }
 
     int getEdgeCount() const { return fEdgeCount; }
 
     const SkScalar* getEdges() const { return fEdges; }
 
     typedef GrGLConvexPolyEffect GLProcessor;
 
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
-
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
 
 private:
     GrConvexPolyEffect(GrPrimitiveEdgeType edgeType, int n, const SkScalar edges[]);
 
     virtual bool onIsEqual(const GrProcessor& other) const SK_OVERRIDE;
 
+    virtual void onGetConstantColorComponents(GrColor* color, uint32_t* validFlags,
+                                              bool* isSingleComponent) const SK_OVERRIDE;
+
     GrPrimitiveEdgeType    fEdgeType;
     int                    fEdgeCount;
     SkScalar               fEdges[3 * kMaxEdges];
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrFragmentProcessor INHERITED;
 };
 
 
 #endif