Revert of Add isSingleComponent bool to getConstantColorComponent

src/gpu/GrAARectRenderer.cpp

Index: src/gpu/GrAARectRenderer.cpp
diff --git a/src/gpu/GrAARectRenderer.cpp b/src/gpu/GrAARectRenderer.cpp
index 0b895d1d335f76c48041853332a7ed5b206b23f1..572098249ef6d277c3178f6903ae3588e044b543 100644
--- a/src/gpu/GrAARectRenderer.cpp
+++ b/src/gpu/GrAARectRenderer.cpp
@@ -29,6 +29,11 @@
     virtual ~GrAlignedRectEffect() {}
 
     static const char* Name() { return "AlignedRectEdge"; }
+
+    virtual void getConstantColorComponents(GrColor* color,
+                                            uint32_t* validFlags) const SK_OVERRIDE {
+        *validFlags = 0;
+    }
 
     const GrShaderVar& inRect() const { return fInRect; }
 
@@ -107,11 +112,6 @@
 
     virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE { return true; }
 
-    virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE {
-        inout->fValidFlags = 0;
-        inout->fIsSingleComponent = false;
-    }
-
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
@@ -154,6 +154,11 @@
     virtual ~GrRectEffect() {}
 
     static const char* Name() { return "RectEdge"; }
+
+    virtual void getConstantColorComponents(GrColor* color,
+                                            uint32_t* validFlags) const SK_OVERRIDE {
+        *validFlags = 0;
+    }
 
     const GrShaderVar& inRectEdge() const { return fInRectEdge; }
     const GrShaderVar& inWidthHeight() const { return fInWidthHeight; }
@@ -251,11 +256,6 @@
     }
 
     virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE { return true; }
-
-    virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE {
-        inout->fValidFlags = 0;
-        inout->fIsSingleComponent = false;
-    }
 
     const GrShaderVar& fInRectEdge;
     const GrShaderVar& fInWidthHeight;