Remove GrStagedProcessor, remove the word Stage as it applies to FPs

src/gpu/GrProcessor.cpp

Index: src/gpu/GrProcessor.cpp
diff --git a/src/gpu/GrProcessor.cpp b/src/gpu/GrProcessor.cpp
index db1e2d9f6198a0103c08728a8326b6dbf9ef5df3..3cbf777253ddf4f2d543338f330647ddaedb4353 100644
--- a/src/gpu/GrProcessor.cpp
+++ b/src/gpu/GrProcessor.cpp
@@ -130,6 +130,12 @@ bool GrProcessor::hasSameTextureAccesses(const GrProcessor& that) const {
 
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
+GrFragmentProcessor::~GrFragmentProcessor() {
+    for (int i = 0; i < fChildProcessors.count(); ++i) {
+        fChildProcessors[i]->unref();
+    }
+}
+
 bool GrFragmentProcessor::isEqual(const GrFragmentProcessor& that,
                                   bool ignoreCoordTransforms) const {
     if (this->classID() != that.classID() ||
@@ -161,7 +167,7 @@ GrGLFragmentProcessor* GrFragmentProcessor::createGLInstance() const {
     GrGLFragmentProcessor* glFragProc = this->onCreateGLInstance();
     glFragProc->fChildProcessors.push_back_n(fChildProcessors.count());
     for (int i = 0; i < fChildProcessors.count(); ++i) {
-        glFragProc->fChildProcessors[i] = fChildProcessors[i].processor()->createGLInstance();
+        glFragProc->fChildProcessors[i] = fChildProcessors[i]->createGLInstance();
     }
     return glFragProc;
 }
@@ -199,7 +205,7 @@ int GrFragmentProcessor::registerChildProcessor(const GrFragmentProcessor* child
     }
 
     int index = fChildProcessors.count();
-    fChildProcessors.push_back(GrFragmentStage(child));
+    fChildProcessors.push_back(SkRef(child));
 
     if (child->willReadFragmentPosition()) {
         this->setWillReadFragmentPosition();