Standardize usage of virtual/override/final in content/

content/common/gpu/client/gpu_memory_buffer_impl.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_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/size.h"
 
 namespace content {
 
 // Provides common implementation of a GPU memory buffer.
 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  public:
   typedef base::Callback<void(scoped_ptr<GpuMemoryBufferImpl> buffer)>
       CreationCallback;
   typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
       AllocationCallback;
   typedef base::Closure DestructionCallback;
 
-  virtual ~GpuMemoryBufferImpl();
+  ~GpuMemoryBufferImpl() override;
 
   // Creates a GPU memory buffer instance with |size| and |format| for |usage|
   // by the current process and |client_id|.
   static void Create(const gfx::Size& size,
                      Format format,
                      Usage usage,
                      int client_id,
                      const CreationCallback& callback);
 
   // Allocates a GPU memory buffer with |size| and |internalformat| for |usage|
@@ skipping 22 matching lines @@
       const DestructionCallback& callback);
 
   // Type-checking upcast routine. Returns an NULL on failure.
   static GpuMemoryBufferImpl* FromClientBuffer(ClientBuffer buffer);
 
   // Returns the number of bytes per pixel that must be used by an
   // implementation when using |format|.
   static size_t BytesPerPixel(Format format);
 
   // Overridden from gfx::GpuMemoryBuffer:
-  virtual bool IsMapped() const override;
-  virtual Format GetFormat() const override;
-  virtual ClientBuffer AsClientBuffer() override;
+  bool IsMapped() const override;
+  Format GetFormat() const override;
+  ClientBuffer AsClientBuffer() override;
 
  protected:
   GpuMemoryBufferImpl(const gfx::Size& size,
                       Format format,
                       const DestructionCallback& callback);
 
   const gfx::Size size_;
   const Format format_;
   const DestructionCallback callback_;
   bool mapped_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_