Standardize usage of virtual/override/final in cc/

cc/animation/scrollbar_animation_controller_linear_fade_unittest.cc

 // Copyright 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.
 
 #include "cc/animation/scrollbar_animation_controller_linear_fade.h"
 
 #include "cc/layers/solid_color_scrollbar_layer_impl.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 class ScrollbarAnimationControllerLinearFadeTest
     : public testing::Test,
       public ScrollbarAnimationControllerClient {
  public:
   ScrollbarAnimationControllerLinearFadeTest()
       : host_impl_(&proxy_, &shared_bitmap_manager_), needs_frame_count_(0) {}
 
-  virtual void PostDelayedScrollbarFade(const base::Closure& start_fade,
-                                        base::TimeDelta delay) override {
+  void PostDelayedScrollbarFade(const base::Closure& start_fade,
+                                base::TimeDelta delay) override {
     start_fade_ = start_fade;
     delay_ = delay;
   }
-  virtual void SetNeedsScrollbarAnimationFrame() override {
-    needs_frame_count_++;
-  }
+  void SetNeedsScrollbarAnimationFrame() override { needs_frame_count_++; }
 
  protected:
   virtual void SetUp() {
     const int kThumbThickness = 10;
     const int kTrackStart = 0;
     const bool kIsLeftSideVerticalScrollbar = false;
     const bool kIsOverlayScrollbar = true;  // Allow opacity animations.
 
     scoped_ptr<LayerImpl> scroll_layer =
         LayerImpl::Create(host_impl_.active_tree(), 1);
@@ skipping 33 matching lines @@
   scoped_ptr<SolidColorScrollbarLayerImpl> scrollbar_layer_;
 
   base::Closure start_fade_;
   base::TimeDelta delay_;
   int needs_frame_count_;
 };
 
 class VerticalScrollbarAnimationControllerLinearFadeTest
     : public ScrollbarAnimationControllerLinearFadeTest {
  protected:
-  virtual ScrollbarOrientation orientation() const override { return VERTICAL; }
+  ScrollbarOrientation orientation() const override { return VERTICAL; }
 };
 
 TEST_F(ScrollbarAnimationControllerLinearFadeTest, DelayAnimationOnResize) {
   scrollbar_layer_->SetOpacity(0.0f);
   scrollbar_controller_->DidScrollBegin();
   scrollbar_controller_->DidScrollUpdate(true);
   scrollbar_controller_->DidScrollEnd();
   // Normal Animation delay of 2 seconds.
   EXPECT_FLOAT_EQ(1.0f, scrollbar_layer_->opacity());
   EXPECT_EQ(delay_, base::TimeDelta::FromSeconds(2));
@@ skipping 315 matching lines @@
   scrollbar_controller_->DidScrollUpdate(false);
   EXPECT_FLOAT_EQ(1, scrollbar_layer_->opacity());
 
   time += base::TimeDelta::FromSeconds(1);
   scrollbar_controller_->DidScrollEnd();
   EXPECT_FLOAT_EQ(1, scrollbar_layer_->opacity());
 }
 
 }  // namespace
 }  // namespace cc