Standardize usage of virtual/override/final specifiers.

ash/wm/window_state.cc

Index: ash/wm/window_state.cc
diff --git a/ash/wm/window_state.cc b/ash/wm/window_state.cc
index 1b962d1c010efc173d6c8a342ea039a74c7682a0..ffe25f3c7f1e88e65572243c0aa14143aa89495d 100644
--- a/ash/wm/window_state.cc
+++ b/ash/wm/window_state.cc
@@ -38,17 +38,17 @@ namespace {
 class BoundsSetter : public aura::LayoutManager {
  public:
   BoundsSetter() {}
-  virtual ~BoundsSetter() {}
+  ~BoundsSetter() override {}
 
   // aura::LayoutManager overrides:
-  virtual void OnWindowResized() override {}
-  virtual void OnWindowAddedToLayout(aura::Window* child) override {}
-  virtual void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
-  virtual void OnWindowRemovedFromLayout(aura::Window* child) override {}
-  virtual void OnChildWindowVisibilityChanged(
-      aura::Window* child, bool visible) override {}
-  virtual void SetChildBounds(
-      aura::Window* child, const gfx::Rect& requested_bounds) override {}
+  void OnWindowResized() override {}
+  void OnWindowAddedToLayout(aura::Window* child) override {}
+  void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
+  void OnWindowRemovedFromLayout(aura::Window* child) override {}
+  void OnChildWindowVisibilityChanged(aura::Window* child,
+                                      bool visible) override {}
+  void SetChildBounds(aura::Window* child,
+                      const gfx::Rect& requested_bounds) override {}
 
   void SetBounds(aura::Window* window, const gfx::Rect& bounds) {
     SetChildBoundsDirect(window, bounds);