cc: Implement overdraw feedback debugging feature.

content/browser/compositor/software_browser_compositor_output_surface.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 CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "build/build_config.h"
@@ skipping 17 matching lines @@
   ~SoftwareBrowserCompositorOutputSurface() override;
 
   // 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;
   bool IsDisplayedAsOverlayPlane() const override;
   unsigned GetOverlayTextureId() const override;
   bool SurfaceIsSuspendForRecycle() const override;
   uint32_t GetFramebufferCopyTextureFormat() override;
 
  private:
   // BrowserCompositorOutputSurface implementation.
 #if defined(OS_MACOSX)
   void SetSurfaceSuspendedForRecycle(bool suspended) override;
 #endif
 
   void SwapBuffersCallback();
 
   cc::OutputSurfaceClient* client_ = nullptr;
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   base::WeakPtrFactory<SoftwareBrowserCompositorOutputSurface> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SoftwareBrowserCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_SOFTWARE_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_