cc: Implement overdraw feedback debugging feature.

services/ui/surfaces/display_output_surface_ozone.h

 // Copyright 2016 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 SERVICES_UI_SURFACES_DISPLAY_OUTPUT_SURFACE_OZONE_H_
 #define SERVICES_UI_SURFACES_DISPLAY_OUTPUT_SURFACE_OZONE_H_
 
 #include <memory>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 40 matching lines @@
 
  private:
   // cc::OutputSurface implementation.
   void BindToClient(cc::OutputSurfaceClient* client) override;
   void EnsureBackbuffer() override;
   void DiscardBackbuffer() override;
   void BindFramebuffer() override;
   void Reshape(const gfx::Size& size,
                float device_scale_factor,
                const gfx::ColorSpace& color_space,
-               bool has_alpha) override;
+               bool has_alpha,
+               bool use_stencil) override;
   void SwapBuffers(cc::OutputSurfaceFrame frame) override;
   uint32_t GetFramebufferCopyTextureFormat() override;
   cc::OverlayCandidateValidator* GetOverlayCandidateValidator() const override;
   bool IsDisplayedAsOverlayPlane() const override;
   unsigned GetOverlayTextureId() const override;
   bool SurfaceIsSuspendForRecycle() const override;
   bool HasExternalStencilTest() const override;
   void ApplyExternalStencil() override;
 
   // Called when a swap completion is signaled from ImageTransportSurface.
@@ skipping 12 matching lines @@
 
   gfx::Size reshape_size_;
   gfx::Size swap_size_;
 
   base::WeakPtrFactory<DisplayOutputSurfaceOzone> weak_ptr_factory_;
 };
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_SURFACES_DISPLAY_OUTPUT_SURFACE_OZONE_H_