Standardize usage of virtual/override/final in gpu/

gpu/command_buffer/service/gl_context_virtual.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 GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 16 matching lines @@
 class GPU_EXPORT GLContextVirtual : public gfx::GLContext {
  public:
   GLContextVirtual(
       gfx::GLShareGroup* share_group,
       gfx::GLContext* shared_context,
       base::WeakPtr<gles2::GLES2Decoder> decoder);
 
   gfx::Display* display();
 
   // Implement GLContext.
-  virtual bool Initialize(
-      gfx::GLSurface* compatible_surface,
-      gfx::GpuPreference gpu_preference) override;
-  virtual void Destroy() override;
-  virtual bool MakeCurrent(gfx::GLSurface* surface) override;
-  virtual void ReleaseCurrent(gfx::GLSurface* surface) override;
-  virtual bool IsCurrent(gfx::GLSurface* surface) override;
-  virtual void* GetHandle() override;
-  virtual void SetSwapInterval(int interval) override;
-  virtual std::string GetExtensions() override;
-  virtual bool GetTotalGpuMemory(size_t* bytes) override;
-  virtual void SetSafeToForceGpuSwitch() override;
-  virtual bool WasAllocatedUsingRobustnessExtension() override;
-  virtual void SetUnbindFboOnMakeCurrent() override;
+  bool Initialize(gfx::GLSurface* compatible_surface,
+                  gfx::GpuPreference gpu_preference) override;
+  void Destroy() override;
+  bool MakeCurrent(gfx::GLSurface* surface) override;
+  void ReleaseCurrent(gfx::GLSurface* surface) override;
+  bool IsCurrent(gfx::GLSurface* surface) override;
+  void* GetHandle() override;
+  void SetSwapInterval(int interval) override;
+  std::string GetExtensions() override;
+  bool GetTotalGpuMemory(size_t* bytes) override;
+  void SetSafeToForceGpuSwitch() override;
+  bool WasAllocatedUsingRobustnessExtension() override;
+  void SetUnbindFboOnMakeCurrent() override;
 
  protected:
-  virtual ~GLContextVirtual();
+  ~GLContextVirtual() override;
 
  private:
   scoped_refptr<gfx::GLContext> shared_context_;
   gfx::Display* display_;
   base::WeakPtr<gles2::GLES2Decoder> decoder_;
 
   DISALLOW_COPY_AND_ASSIGN(GLContextVirtual);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GL_CONTEXT_VIRTUAL_H_