New API for computing optimization invariants.

src/gpu/GrProcOptInfo.h

Index: src/gpu/GrProcOptInfo.h
diff --git a/src/gpu/GrProcOptInfo.h b/src/gpu/GrProcOptInfo.h
index caf53d773ace6dc919f2cdb6170ce50e349622f5..3452fb2db580c9abf6b53cc11037f9db1b4a3bf5 100644
--- a/src/gpu/GrProcOptInfo.h
+++ b/src/gpu/GrProcOptInfo.h
@@ -32,10 +32,9 @@ public:
 
     void calcWithInitialValues(const GrFragmentProcessor* const *, int cnt, GrColor startColor,
                                GrColorComponentFlags, bool areCoverageStages, bool isLCD = false);
-
-    void calcColorWithBatch(const GrDrawBatch*, const GrFragmentProcessor* const[], int cnt);
-    void calcCoverageWithBatch(const GrDrawBatch*, const GrFragmentProcessor* const[], int cnt);
-
+    void initUsingInvariantOutput(GrInitInvariantOutput invOutput);
+    void completeCalculations(const GrFragmentProcessor * const processors[], int cnt);
+    
     bool isSolidWhite() const { return fInOut.isSolidWhite(); }
     bool isOpaque() const { return fInOut.isOpaque(); }
     bool isSingleComponent() const { return fInOut.isSingleComponent(); }
@@ -89,6 +88,8 @@ private:
     bool fInputColorIsUsed;
     GrColor fInputColor;
     bool fReadsFragPosition;
+
+    friend class GrPipelineBuilder;
 };
 
 #endif