Standardize usage of virtual/override/final in gpu/

gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc

Index: gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc
diff --git a/gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc b/gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc
index 4b8ce1d17857e2f2bcd1a7f6e980304bc2d41348..a2fbc8e94ff09108de93706ec5436608dc80650a 100644
--- a/gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc
+++ b/gpu/command_buffer/service/async_pixel_transfer_manager_stub.cc
@@ -11,18 +11,16 @@ namespace gpu {
 class AsyncPixelTransferDelegateStub : public AsyncPixelTransferDelegate {
  public:
   AsyncPixelTransferDelegateStub();
-  virtual ~AsyncPixelTransferDelegateStub();
+  ~AsyncPixelTransferDelegateStub() override;
 
   // Implement AsyncPixelTransferDelegate:
-  virtual void AsyncTexImage2D(
-      const AsyncTexImage2DParams& tex_params,
-      const AsyncMemoryParams& mem_params,
-      const base::Closure& bind_callback) override;
-  virtual void AsyncTexSubImage2D(
-      const AsyncTexSubImage2DParams& tex_params,
-      const AsyncMemoryParams& mem_params) override;
-  virtual bool TransferIsInProgress() override;
-  virtual void WaitForTransferCompletion() override;
+  void AsyncTexImage2D(const AsyncTexImage2DParams& tex_params,
+                       const AsyncMemoryParams& mem_params,
+                       const base::Closure& bind_callback) override;
+  void AsyncTexSubImage2D(const AsyncTexSubImage2DParams& tex_params,
+                          const AsyncMemoryParams& mem_params) override;
+  bool TransferIsInProgress() override;
+  void WaitForTransferCompletion() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AsyncPixelTransferDelegateStub);