Add isSingleComponent bool to getConstantColorComponent

src/gpu/effects/GrConvexPolyEffect.cpp

Index: src/gpu/effects/GrConvexPolyEffect.cpp
diff --git a/src/gpu/effects/GrConvexPolyEffect.cpp b/src/gpu/effects/GrConvexPolyEffect.cpp
index 4857a9e96d6231b5b75d91736f6cf11316a2a9a9..d63eee267846cca827484bbedca3a95df89bcc0e 100644
--- a/src/gpu/effects/GrConvexPolyEffect.cpp
+++ b/src/gpu/effects/GrConvexPolyEffect.cpp
@@ -29,17 +29,6 @@ public:
         return SkNEW_ARGS(AARectEffect, (edgeType, rect));
     }
 
-    virtual void getConstantColorComponents(GrColor* color,
-                                            uint32_t* validFlags) const SK_OVERRIDE {
-        if (fRect.isEmpty()) {
-            // An empty rect will have no coverage anywhere.
-            *color = 0x00000000;
-            *validFlags = kRGBA_GrColorComponentFlags;
-        } else {
-            *validFlags = 0;
-        }
-    }
-
     GrPrimitiveEdgeType getEdgeType() const { return fEdgeType; }
 
     virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
@@ -54,6 +43,17 @@ private:
         return fRect == aare.fRect;
     }
 
+    virtual void onComputeInvarientOutput(InvarientOutput* invarientOutput) const SK_OVERRIDE {
+        if (fRect.isEmpty()) {
+            // An empty rect will have no coverage anywhere.
+            invarientOutput->color = 0x00000000;
+            invarientOutput->validFlags = kRGBA_GrColorComponentFlags;
+        } else {
+            invarientOutput->validFlags = 0;
+        }
+        invarientOutput->isSingleComponent = false;
+    }
+
     SkRect              fRect;
     GrPrimitiveEdgeType fEdgeType;
 
@@ -328,8 +328,9 @@ GrFragmentProcessor* GrConvexPolyEffect::Create(GrPrimitiveEdgeType edgeType, co
 
 GrConvexPolyEffect::~GrConvexPolyEffect() {}
 
-void GrConvexPolyEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
-    *validFlags = 0;
+void GrConvexPolyEffect::onComputeInvarientOutput(InvarientOutput* invarientOutput) const {
+    invarientOutput->validFlags = 0;
+    invarientOutput->isSingleComponent = false;
 }
 
 const GrBackendFragmentProcessorFactory& GrConvexPolyEffect::getFactory() const {