Cleanup of shader building system

src/gpu/GrOptDrawState.cpp

Index: src/gpu/GrOptDrawState.cpp
diff --git a/src/gpu/GrOptDrawState.cpp b/src/gpu/GrOptDrawState.cpp
index 6a79203d1a0bcaded4bb6b0fd83387341f391e80..40d3e8bc418a756af67d1b22fb1785664a6ab1c8 100644
--- a/src/gpu/GrOptDrawState.cpp
+++ b/src/gpu/GrOptDrawState.cpp
@@ -187,7 +187,7 @@ void GrOptDrawState::copyEffectiveColorStages(const GrDrawState& ds) {
     }
 
     for (int i = 0; i < ds.numColorStages(); ++i) {
-        const GrFragmentProcessor* fp = ds.getColorStage(i).getFragmentProcessor();
+        const GrFragmentProcessor* fp = ds.getColorStage(i).getProcessor();
         if (!fp->willUseInputColor()) {
             firstColorStage = i;
             fInputColorIsUsed = false;
@@ -235,10 +235,10 @@ void GrOptDrawState::copyEffectiveCoverageStages(const GrDrawState& ds) {
 }
 
 static void get_stage_stats(const GrFragmentStage& stage, bool* readsDst, bool* readsFragPosition) {
-    if (stage.getFragmentProcessor()->willReadDstColor()) {
+    if (stage.getProcessor()->willReadDstColor()) {
         *readsDst = true;
     }
-    if (stage.getFragmentProcessor()->willReadFragmentPosition()) {
+    if (stage.getProcessor()->willReadFragmentPosition()) {
         *readsFragPosition = true;
     }
 }