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

gm/rrects.cpp

Index: gm/rrects.cpp
diff --git a/gm/rrects.cpp b/gm/rrects.cpp
index 62ad48f243d3c8cc990cd9c07b7da552bb284141..f9a21db0f2ef8fea5026990de2a319105213af87 100644
--- a/gm/rrects.cpp
+++ b/gm/rrects.cpp
@@ -114,7 +114,7 @@ protected:
                         SkAutoTUnref<GrFragmentProcessor> fp(GrRRectEffect::Create(edgeType,
                                                                                    rrect));
                         if (fp) {
-                            pipelineBuilder.addCoverageProcessor(fp);
+                            pipelineBuilder.addCoverageFragmentProcessor(fp);
                             pipelineBuilder.setRenderTarget(rt);
 
                             SkRect bounds = rrect.getBounds();