Add isSingleComponent bool to getConstantColorComponent

src/effects/SkBlurMaskFilter.cpp

Index: src/effects/SkBlurMaskFilter.cpp
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index 123b9d28e5cce98c688775626a38609bde1e617c..3784cf2e3f4450ad32ed54fbb36fc5972435da22 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -563,8 +563,6 @@ public:
     typedef GrGLRectBlurEffect GLProcessor;
 
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
-
     /**
      * Create a simple filter effect with custom bicubic coefficients.
      */
@@ -594,6 +592,8 @@ private:
     GrRectBlurEffect(const SkRect& rect, float sigma, GrTexture *blur_profile);
     virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE;
 
+    virtual void onComputeInvarientOutput(InvarientOutput* invarientOutput) const SK_OVERRIDE;
+
     static bool CreateBlurProfileTexture(GrContext *context, float sigma,
                                        GrTexture **blurProfileTexture);
 
@@ -765,9 +765,9 @@ bool GrRectBlurEffect::onIsEqual(const GrProcessor& sBase) const {
     return this->getSigma() == s.getSigma() && this->getRect() == s.getRect();
 }
 
-void GrRectBlurEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
-    *validFlags = 0;
-    return;
+void GrRectBlurEffect::onComputeInvarientOutput(InvarientOutput* invarientOutput) const {
+    invarientOutput->validFlags = 0;
+    invarientOutput->isSingleComponent = false;
 }
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRectBlurEffect);
@@ -837,8 +837,6 @@ public:
 
     typedef GrGLRRectBlurEffect GLProcessor;
 
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
-
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
 
 private:
@@ -846,6 +844,8 @@ private:
 
     virtual bool onIsEqual(const GrProcessor& other) const SK_OVERRIDE;
 
+    virtual void onComputeInvarientOutput(InvarientOutput* invarientOutput) const SK_OVERRIDE;
+
     SkRRect             fRRect;
     float               fSigma;
     GrTextureAccess     fNinePatchAccess;
@@ -929,8 +929,9 @@ GrFragmentProcessor* GrRRectBlurEffect::Create(GrContext* context, float sigma,
     return SkNEW_ARGS(GrRRectBlurEffect, (sigma, rrect, blurNinePatchTexture));
 }
 
-void GrRRectBlurEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
-    *validFlags = 0;
+void GrRRectBlurEffect::onComputeInvarientOutput(InvarientOutput* invarientOutput) const {
+    invarientOutput->validFlags = 0;
+    invarientOutput->isSingleComponent = false;
 }
 
 const GrBackendFragmentProcessorFactory& GrRRectBlurEffect::getFactory() const {