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

content/browser/renderer_host/software_frame_manager.h

 // Copyright 2013 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_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_
 
 #include <list>
 #include <set>
 
@@ skipping 21 matching lines @@
   // be evicted. Upon receiving this callback, the client should release any
   // references that it may hold to the current frame, to ensure that its memory
   // is freed expediently.
   virtual void ReleaseReferencesToSoftwareFrame() = 0;
 };
 
 class CONTENT_EXPORT SoftwareFrameManager : public RendererFrameManagerClient {
  public:
   explicit SoftwareFrameManager(
       base::WeakPtr<SoftwareFrameManagerClient> client);
-  virtual ~SoftwareFrameManager();
+  ~SoftwareFrameManager() override;
 
   // Swaps to a new frame from shared memory. This frame is guaranteed to
   // not be evicted until SwapToNewFrameComplete is called.
   bool SwapToNewFrame(
       uint32 output_surface_id,
       const cc::SoftwareFrameData* frame_data,
       float frame_device_scale_factor,
       base::ProcessHandle process_handle);
   void SwapToNewFrameComplete(bool visible);
   void SetVisibility(bool visible);
   bool HasCurrentFrame() const;
   void DiscardCurrentFrame();
   uint32 GetCurrentFrameOutputSurfaceId() const;
   void GetCurrentFrameMailbox(
       cc::TextureMailbox* mailbox,
       scoped_ptr<cc::SingleReleaseCallback>* callback);
   void* GetCurrentFramePixels() const;
   float GetCurrentFrameDeviceScaleFactor() const;
   gfx::Size GetCurrentFrameSizeInPixels() const;
   gfx::Size GetCurrentFrameSizeInDIP() const;
 
  private:
   // Called by SoftwareFrameMemoryManager to demand that the current frame
   // be evicted.
-  virtual void EvictCurrentFrame() override;
+  void EvictCurrentFrame() override;
 
   base::WeakPtr<SoftwareFrameManagerClient> client_;
 
   // This holds the current software framebuffer.
   scoped_refptr<SoftwareFrame> current_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(SoftwareFrameManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_SOFTWARE_FRAME_MANAGER_H_