Revert of Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrTextureDomain.h

Index: src/gpu/effects/GrTextureDomain.h
diff --git a/src/gpu/effects/GrTextureDomain.h b/src/gpu/effects/GrTextureDomain.h
index ec8684792516277eceecd24d65047de88c192346..5751bad0f719656ff79392dc61a2c08b20a29020 100644
--- a/src/gpu/effects/GrTextureDomain.h
+++ b/src/gpu/effects/GrTextureDomain.h
@@ -159,6 +159,7 @@
     typedef GrGLTextureDomainEffect GLProcessor;
 
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
+    virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags) const SK_OVERRIDE;
 
     const GrTextureDomain& textureDomain() const { return fTextureDomain; }
 
@@ -175,8 +176,6 @@
 
     virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE;
 
-    virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE;
-
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;