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

src/gpu/GrOvalRenderer.cpp

Index: src/gpu/GrOvalRenderer.cpp
diff --git a/src/gpu/GrOvalRenderer.cpp b/src/gpu/GrOvalRenderer.cpp
index f4dca8bf2169ce62a49dc67ecd805c9e7cda7bee..2ad7e72067d1a32d2eb6834c496dd8eaf03a93fb 100644
--- a/src/gpu/GrOvalRenderer.cpp
+++ b/src/gpu/GrOvalRenderer.cpp
@@ -1423,7 +1423,7 @@
             return false;
         }
         arfps.set(&pipelineBuilder);
-        arfps.addCoverageFragmentProcessor(fp)->unref();
+        arfps.addCoverageProcessor(fp)->unref();
     }
 
     SkStrokeRec fillRec(SkStrokeRec::kFill_InitStyle);
@@ -1453,7 +1453,7 @@
         return false;
     }
 
-    arfps.addCoverageFragmentProcessor(effect)->unref();
+    arfps.addCoverageProcessor(effect)->unref();
     SkRect bounds = outer->getBounds();
     if (applyAA) {
         bounds.outset(SK_ScalarHalf, SK_ScalarHalf);