Update {virtual,override,final} to follow C++11 style in device.

device/vibration/vibration_manager_impl_android.h

 // Copyright 2014 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 DEVICE_VIBRATION_VIBRATION_MANAGER_IMPL_ANDROID_H_
 #define DEVICE_VIBRATION_VIBRATION_MANAGER_IMPL_ANDROID_H_
 
 #include "base/android/jni_android.h"
 #include "device/vibration/vibration_manager.mojom.h"
 
 namespace device {
 
 // TODO(timvolodine): consider implementing the VibrationManager mojo service
 // directly in java, crbug.com/439434.
 class VibrationManagerImplAndroid
     : public mojo::InterfaceImpl<VibrationManager> {
  public:
   static VibrationManagerImplAndroid* Create();
   static bool Register(JNIEnv* env);
 
   void Vibrate(int64 milliseconds) override;
   void Cancel() override;
 
  private:
   VibrationManagerImplAndroid();
-  virtual ~VibrationManagerImplAndroid();
+  ~VibrationManagerImplAndroid() override;
 
   base::android::ScopedJavaGlobalRef<jobject> j_vibration_provider_;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_VIBRATION_VIBRATION_MANAGER_IMPL_ANDROID_H_