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

src/gpu/GrPendingFragmentStage.h

+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrPendingFragmentStage_DEFINED
+#define GrPendingFragmentStage_DEFINED
+
+#include "GrStagedProcessor.h"
+#include "GrPendingProgramElement.h"
+
+/**
+ * This a baked variant of GrFragmentStage, as recorded in GrPipeline
+ */
+class GrPendingFragmentStage : public GrStagedProcessor<GrPendingProgramElement> {
+public:
+    GrPendingFragmentStage(const GrFragmentStage& stage) {
+        INHERITED::fProc.reset(stage.processor());
+    }
+
+private:
+    typedef GrStagedProcessor<GrPendingProgramElement> INHERITED;
+};
+
+#endif