Add logic to GLRenderer to support RenderPassDrawQuad copying.

cc/output/direct_renderer.h

 // 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.
 
 #ifndef CC_OUTPUT_DIRECT_RENDERER_H_
 #define CC_OUTPUT_DIRECT_RENDERER_H_
 
 #include <unordered_map>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "cc/base/cc_export.h"
 #include "cc/output/ca_layer_overlay.h"
 #include "cc/output/overlay_processor.h"
 #include "cc/output/renderer.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/raster/task_graph_runner.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/scoped_resource.h"
 #include "gpu/command_buffer/common/texture_in_use_response.h"
 #include "ui/gfx/geometry/quad_f.h"
 
 namespace cc {
 class DrawPolygon;
 class ResourceProvider;
 
 // This is the base class for code shared between the GL and software
 // renderer implementations.  "Direct" refers to the fact that it does not
 // delegate rendering to another compositor.
-class CC_EXPORT DirectRenderer : public Renderer {
+class CC_EXPORT DirectRenderer : public Renderer,
+                                 public RenderPassDrawQuadCopier {
  public:
   ~DirectRenderer() override;
 
   void DecideRenderPassAllocationsForFrame(
       const RenderPassList& render_passes_in_draw_order) override;
   bool HasAllocatedResourcesForTesting(RenderPassId id) const override;
   void DrawFrame(RenderPassList* render_passes_in_draw_order,
                  float device_scale_factor,
                  const gfx::ColorSpace& device_color_space,
                  const gfx::Rect& device_viewport_rect,
@@ skipping 136 matching lines @@
 
  private:
   gfx::Size enlarge_pass_texture_amount_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectRenderer);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_DIRECT_RENDERER_H_