Add DCLayerOverlayProcessor and supporting DCLayer structures.

cc/output/overlay_processor.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_OUTPUT_OVERLAY_PROCESSOR_H_
 #define CC_OUTPUT_OVERLAY_PROCESSOR_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/output/ca_layer_overlay.h"
+#include "cc/output/dc_layer_overlay.h"
 #include "cc/output/overlay_candidate.h"
 #include "cc/quads/render_pass.h"
 
 namespace cc {
 class OutputSurface;
 class ResourceProvider;
 
 class CC_EXPORT OverlayProcessor {
  public:
   class CC_EXPORT Strategy {
@@ skipping 37 matching lines @@
 
  private:
   bool ProcessForCALayers(
       ResourceProvider* resource_provider,
       RenderPass* render_pass,
       const RenderPassFilterList& render_pass_filters,
       const RenderPassFilterList& render_pass_background_filters,
       OverlayCandidateList* overlay_candidates,
       CALayerOverlayList* ca_layer_overlays,
       gfx::Rect* damage_rect);
+  bool ProcessForDCLayers(
+      ResourceProvider* resource_provider,
+      RenderPass* render_pass,
+      const RenderPassFilterList& render_pass_filters,
+      const RenderPassFilterList& render_pass_background_filters,
+      OverlayCandidateList* overlay_candidates,
+      CALayerOverlayList* ca_layer_overlays,
+      gfx::Rect* damage_rect);
   // Update |damage_rect| by removing damage casued by |candidates|.
   void UpdateDamageRect(OverlayCandidateList* candidates,
                         gfx::Rect* damage_rect);
 
+  DCLayerOverlayProcessor dc_processor_;
+
   DISALLOW_COPY_AND_ASSIGN(OverlayProcessor);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_OVERLAY_PROCESSOR_H_