Standardize usage of virtual/override/final specifiers.

ui/app_list/views/apps_grid_view.cc

Index: ui/app_list/views/apps_grid_view.cc
diff --git a/ui/app_list/views/apps_grid_view.cc b/ui/app_list/views/apps_grid_view.cc
index 8d37d6a4397942ca9112aa9edce3f0b8f29db6cc..75f954561cc8ae402aab9085c54d6af2504b9706 100644
--- a/ui/app_list/views/apps_grid_view.cc
+++ b/ui/app_list/views/apps_grid_view.cc
@@ -134,10 +134,10 @@ class RowMoveAnimationDelegate : public gfx::AnimationDelegate {
         layer_start_(layer ? layer->bounds() : gfx::Rect()),
         layer_target_(layer_target) {
   }
-  virtual ~RowMoveAnimationDelegate() {}
+  ~RowMoveAnimationDelegate() override {}
 
   // gfx::AnimationDelegate overrides:
-  virtual void AnimationProgressed(const gfx::Animation* animation) override {
+  void AnimationProgressed(const gfx::Animation* animation) override {
     view_->layer()->SetOpacity(animation->GetCurrentValue());
     view_->layer()->ScheduleDraw();
 
@@ -148,11 +148,11 @@ class RowMoveAnimationDelegate : public gfx::AnimationDelegate {
       layer_->ScheduleDraw();
     }
   }
-  virtual void AnimationEnded(const gfx::Animation* animation) override {
+  void AnimationEnded(const gfx::Animation* animation) override {
     view_->layer()->SetOpacity(1.0f);
     view_->SchedulePaint();
   }
-  virtual void AnimationCanceled(const gfx::Animation* animation) override {
+  void AnimationCanceled(const gfx::Animation* animation) override {
     view_->layer()->SetOpacity(1.0f);
     view_->SchedulePaint();
   }
@@ -177,11 +177,10 @@ class ItemRemoveAnimationDelegate : public gfx::AnimationDelegate {
       : view_(view) {
   }
 
-  virtual ~ItemRemoveAnimationDelegate() {
-  }
+  ~ItemRemoveAnimationDelegate() override {}
 
   // gfx::AnimationDelegate overrides:
-  virtual void AnimationProgressed(const gfx::Animation* animation) override {
+  void AnimationProgressed(const gfx::Animation* animation) override {
     view_->layer()->SetOpacity(1 - animation->GetCurrentValue());
     view_->layer()->ScheduleDraw();
   }
@@ -199,10 +198,10 @@ class ItemMoveAnimationDelegate : public gfx::AnimationDelegate {
  public:
   ItemMoveAnimationDelegate(views::View* view) : view_(view) {}
 
-  virtual void AnimationEnded(const gfx::Animation* animation) override {
+  void AnimationEnded(const gfx::Animation* animation) override {
     view_->SchedulePaint();
   }
-  virtual void AnimationCanceled(const gfx::Animation* animation) override {
+  void AnimationCanceled(const gfx::Animation* animation) override {
     view_->SchedulePaint();
   }