Standardize usage of virtual/override/final specifiers.

ash/wm/dock/docked_window_resizer.h

Index: ash/wm/dock/docked_window_resizer.h
diff --git a/ash/wm/dock/docked_window_resizer.h b/ash/wm/dock/docked_window_resizer.h
index 3f45d89a1258f7f6fdb340ed8dde1ed1d272e226..6b769d354470f59198b4ae77a37270991a6f3184 100644
--- a/ash/wm/dock/docked_window_resizer.h
+++ b/ash/wm/dock/docked_window_resizer.h
@@ -27,7 +27,7 @@ class DockedWindowLayoutManager;
 // moving or resizing of a window while it is docked to the side of a screen.
 class ASH_EXPORT DockedWindowResizer : public WindowResizer {
  public:
-  virtual ~DockedWindowResizer();
+  ~DockedWindowResizer() override;
 
   // Creates a new DockWindowResizer. The caller takes ownership of the
   // returned object. The ownership of |next_window_resizer| is taken by the
@@ -36,9 +36,9 @@ class ASH_EXPORT DockedWindowResizer : public WindowResizer {
                                      wm::WindowState* window_state);
 
   // WindowResizer:
-  virtual void Drag(const gfx::Point& location, int event_flags) override;
-  virtual void CompleteDrag() override;
-  virtual void RevertDrag() override;
+  void Drag(const gfx::Point& location, int event_flags) override;
+  void CompleteDrag() override;
+  void RevertDrag() override;
 
  private:
   // Creates DockWindowResizer that adds the ability to attach / detach