Standardize usage of virtual/override/final in gpu/

gpu/command_buffer/service/async_pixel_transfer_manager_stub.h

Index: gpu/command_buffer/service/async_pixel_transfer_manager_stub.h
diff --git a/gpu/command_buffer/service/async_pixel_transfer_manager_stub.h b/gpu/command_buffer/service/async_pixel_transfer_manager_stub.h
index c2fa3ebe55736d314b30b079be7338eb3d7c6f12..f8ced577ed32b613045fddc383507f9e89dfceb5 100644
--- a/gpu/command_buffer/service/async_pixel_transfer_manager_stub.h
+++ b/gpu/command_buffer/service/async_pixel_transfer_manager_stub.h
@@ -12,22 +12,22 @@ namespace gpu {
 class AsyncPixelTransferManagerStub : public AsyncPixelTransferManager {
  public:
   AsyncPixelTransferManagerStub();
-  virtual ~AsyncPixelTransferManagerStub();
+  ~AsyncPixelTransferManagerStub() override;
 
   // AsyncPixelTransferManager implementation:
-  virtual void BindCompletedAsyncTransfers() override;
-  virtual void AsyncNotifyCompletion(
+  void BindCompletedAsyncTransfers() override;
+  void AsyncNotifyCompletion(
       const AsyncMemoryParams& mem_params,
       AsyncPixelTransferCompletionObserver* observer) override;
-  virtual uint32 GetTextureUploadCount() override;
-  virtual base::TimeDelta GetTotalTextureUploadTime() override;
-  virtual void ProcessMorePendingTransfers() override;
-  virtual bool NeedsProcessMorePendingTransfers() override;
-  virtual void WaitAllAsyncTexImage2D() override;
+  uint32 GetTextureUploadCount() override;
+  base::TimeDelta GetTotalTextureUploadTime() override;
+  void ProcessMorePendingTransfers() override;
+  bool NeedsProcessMorePendingTransfers() override;
+  void WaitAllAsyncTexImage2D() override;
 
  private:
   // AsyncPixelTransferManager implementation:
-  virtual AsyncPixelTransferDelegate* CreatePixelTransferDelegateImpl(
+  AsyncPixelTransferDelegate* CreatePixelTransferDelegateImpl(
       gles2::TextureRef* ref,
       const AsyncTexImage2DParams& define_params) override;