Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrSimpleTextureEffect.h

Index: src/gpu/effects/GrSimpleTextureEffect.h
diff --git a/src/gpu/effects/GrSimpleTextureEffect.h b/src/gpu/effects/GrSimpleTextureEffect.h
index dc9cf85e0fc17d6c38bd283a7c89b9d9919ebadf..88c5ca21a17e865123f70f0b7a21c418c2c194ee 100644
--- a/src/gpu/effects/GrSimpleTextureEffect.h
+++ b/src/gpu/effects/GrSimpleTextureEffect.h
@@ -49,8 +49,6 @@ public:
 
     static const char* Name() { return "Texture"; }
 
-    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
-
     typedef GrGLSimpleTextureEffect GLProcessor;
 
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
@@ -75,6 +73,8 @@ private:
         return this->hasSameTextureParamsMatrixAndSourceCoords(ste);
     }
 
+    virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE;
+
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;