Add DCLayerOverlayProcessor and supporting DCLayer structures.

cc/output/direct_renderer.cc

 // Copyright 2012 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.
 
 #include "cc/output/direct_renderer.h"
 
 #include <stddef.h>
 
 #include <unordered_map>
 #include <utility>
@@ skipping 293 matching lines @@
     output_surface_plane.overlay_handled = true;
     current_frame()->overlay_list.push_back(output_surface_plane);
   }
 
   // Attempt to replace some or all of the quads of the root render pass with
   // overlays.
   overlay_processor_->ProcessForOverlays(
       resource_provider_, root_render_pass, render_pass_filters_,
       render_pass_background_filters_, &current_frame()->overlay_list,
       &current_frame()->ca_layer_overlay_list,
+      &current_frame()->dc_layer_overlay_list,
       &current_frame()->root_damage_rect,
       &current_frame()->root_content_bounds);
 
   // We can skip all drawing if the damage rect is now empty.
   bool skip_drawing_root_render_pass =
       current_frame()->root_damage_rect.IsEmpty() && allow_empty_swap_;
 
   // If we have to draw but don't support partial swap, the whole output should
   // be considered damaged.
   if (!skip_drawing_root_render_pass && !use_partial_swap_)
@@ skipping 312 matching lines @@
 gfx::Size DirectRenderer::RenderPassTextureSize(const RenderPass* render_pass) {
   return render_pass->output_rect.size();
 }
 
 void DirectRenderer::SetCurrentFrameForTesting(const DrawingFrame& frame) {
   current_frame_valid_ = true;
   current_frame_ = frame;
 }
 
 }  // namespace cc