Standardize usage of virtual/override/final in ui/

ui/gfx/animation/animation_unittest.cc

 // Copyright (c) 2011 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.
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/animation/linear_animation.h"
 #include "ui/gfx/animation/test_animation_delegate.h"
 
 #if defined(OS_WIN)
@@ skipping 11 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 // RunAnimation
 
 class RunAnimation : public LinearAnimation {
  public:
   RunAnimation(int frame_rate, AnimationDelegate* delegate)
       : LinearAnimation(frame_rate, delegate) {
   }
 
-  virtual void AnimateToState(double state) override {
+  void AnimateToState(double state) override {
     EXPECT_LE(0.0, state);
     EXPECT_GE(1.0, state);
   }
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 // CancelAnimation
 
 class CancelAnimation : public LinearAnimation {
  public:
   CancelAnimation(int duration, int frame_rate, AnimationDelegate* delegate)
       : LinearAnimation(duration, frame_rate, delegate) {
   }
 
-  virtual void AnimateToState(double state) override {
+  void AnimateToState(double state) override {
     if (state >= 0.5)
       Stop();
   }
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 // EndAnimation
 
 class EndAnimation : public LinearAnimation {
  public:
   EndAnimation(int duration, int frame_rate, AnimationDelegate* delegate)
       : LinearAnimation(duration, frame_rate, delegate) {
   }
 
-  virtual void AnimateToState(double state) override {
+  void AnimateToState(double state) override {
     if (state >= 0.5)
       End();
   }
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 // DeletingAnimationDelegate
 
 // AnimationDelegate implementation that deletes the animation in ended.
 class DeletingAnimationDelegate : public AnimationDelegate {
  public:
-  virtual void AnimationEnded(const Animation* animation) override {
+  void AnimationEnded(const Animation* animation) override {
     delete animation;
     base::MessageLoop::current()->Quit();
   }
 };
 
 }  // namespace
 
 ///////////////////////////////////////////////////////////////////////////////
 // LinearCase
 
@@ skipping 64 matching lines @@
   EXPECT_EQ(0.0, animation.GetCurrentValue());
   animation.Start();
   EXPECT_EQ(0.0, animation.GetCurrentValue());
   animation.End();
   EXPECT_EQ(1.0, animation.GetCurrentValue());
   animation.Start();
   EXPECT_EQ(0.0, animation.GetCurrentValue());
 }
 
 }  // namespace gfx