Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrBicubicEffect.h

Index: src/gpu/effects/GrBicubicEffect.h
diff --git a/src/gpu/effects/GrBicubicEffect.h b/src/gpu/effects/GrBicubicEffect.h
index 03476da38fb88e7b0eef9fc062e994eaeaacc0ed..4691f12e48dd572bd6f4826891fcceb429e69d72 100644
--- a/src/gpu/effects/GrBicubicEffect.h
+++ b/src/gpu/effects/GrBicubicEffect.h
@@ -29,7 +29,6 @@ public:
     typedef GrGLBicubicEffect GLProcessor;
 
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
 
     const GrTextureDomain& domain() const { return fDomain; }
 
@@ -93,6 +92,9 @@ private:
                     const SkMatrix &matrix, const SkRect& domain);
     virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE;
 
+    virtual void onGetConstantColorComponents(GrColor* color, uint32_t* validFlags,
+                                              bool* isSingleComponent) const SK_OVERRIDE;
+
     float           fCoefficients[16];
     GrTextureDomain fDomain;