Standardize usage of virtual/override/final in content/renderer/

content/renderer/gpu/mailbox_output_surface.h

 // Copyright (c) 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 CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_
 #define CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_
 
 #include <queue>
 
 #include "base/memory/ref_counted.h"
@@ skipping 15 matching lines @@
 // to a fixed thread when bindToClient is called.
 class MailboxOutputSurface : public CompositorOutputSurface {
  public:
   MailboxOutputSurface(
       int32 routing_id,
       uint32 output_surface_id,
       const scoped_refptr<ContextProviderCommandBuffer>& context_provider,
       scoped_ptr<cc::SoftwareOutputDevice> software_device,
       scoped_refptr<FrameSwapMessageQueue> swap_frame_message_queue,
       cc::ResourceFormat format);
-  virtual ~MailboxOutputSurface();
+  ~MailboxOutputSurface() override;
 
   // cc::OutputSurface implementation.
-  virtual void EnsureBackbuffer() override;
-  virtual void DiscardBackbuffer() override;
-  virtual void Reshape(const gfx::Size& size, float scale_factor) override;
-  virtual void BindFramebuffer() override;
-  virtual void SwapBuffers(cc::CompositorFrame* frame) override;
+  void EnsureBackbuffer() override;
+  void DiscardBackbuffer() override;
+  void Reshape(const gfx::Size& size, float scale_factor) override;
+  void BindFramebuffer() override;
+  void SwapBuffers(cc::CompositorFrame* frame) override;
 
  private:
   // CompositorOutputSurface overrides.
-  virtual void OnSwapAck(uint32 output_surface_id,
-                         const cc::CompositorFrameAck& ack) override;
+  void OnSwapAck(uint32 output_surface_id,
+                 const cc::CompositorFrameAck& ack) override;
 
   size_t GetNumAcksPending();
 
   struct TransferableFrame {
     TransferableFrame() : texture_id(0), sync_point(0) {}
 
     TransferableFrame(uint32 texture_id,
                       const gpu::Mailbox& mailbox,
                       const gfx::Size size)
         : texture_id(texture_id), mailbox(mailbox), size(size), sync_point(0) {}
 
     uint32 texture_id;
     gpu::Mailbox mailbox;
     gfx::Size size;
     uint32 sync_point;
   };
 
   TransferableFrame current_backing_;
   std::deque<TransferableFrame> pending_textures_;
   std::queue<TransferableFrame> returned_textures_;
 
   uint32 fbo_;
   bool is_backbuffer_discarded_;
   cc::ResourceFormat format_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_MAILBOX_OUTPUT_SURFACE_H_