Initial change to create GeometryProcessor

include/gpu/GrEffectStage.h

Index: include/gpu/GrEffectStage.h
diff --git a/include/gpu/GrEffectStage.h b/include/gpu/GrEffectStage.h
index 65c7bebdc7056f7da58960ea61e489fd5c2cd73d..c8a785c12449392a91a228807f798744932d2e93 100644
--- a/include/gpu/GrEffectStage.h
+++ b/include/gpu/GrEffectStage.h
@@ -18,8 +18,10 @@
 
 #include "SkShader.h"
 
-class GrEffectStage {
+class GrEffectStage : public SkRefCnt {
 public:
+    SK_DECLARE_INST_COUNT(GrEffectStage);
+
     explicit GrEffectStage(const GrEffect* effect, int attrIndex0 = -1, int attrIndex1 = -1)
     : fEffect(SkRef(effect)) {
         fCoordChangeMatrixSet = false;
@@ -141,6 +143,8 @@ private:
     SkMatrix                            fCoordChangeMatrix;
     SkAutoTUnref<const GrEffect>        fEffect;
     int                                 fVertexAttribIndices[2];
+
+    typedef SkRefCnt INHERITED;
 };
 
 #endif