replace OVERRIDE and FINAL with override and final in ash/

ash/wm/boot_splash_screen_chromeos.cc

Index: ash/wm/boot_splash_screen_chromeos.cc
diff --git a/ash/wm/boot_splash_screen_chromeos.cc b/ash/wm/boot_splash_screen_chromeos.cc
index f13ce5ec75ba8d82385944660950ede0936b7dc4..c140acd1d19ec91108f548951ff1965471e03f90 100644
--- a/ash/wm/boot_splash_screen_chromeos.cc
+++ b/ash/wm/boot_splash_screen_chromeos.cc
@@ -26,7 +26,7 @@ class BootSplashScreen::CopyHostContentLayerDelegate
   virtual ~CopyHostContentLayerDelegate() {}
 
   // ui::LayerDelegate overrides:
-  virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE {
+  virtual void OnPaintLayer(gfx::Canvas* canvas) override {
     // It'd be safer to copy the area to a canvas in the constructor and then
     // copy from that canvas to this one here, but this appears to work (i.e. we
     // only call this before we draw our first frame) and it saves us an extra
@@ -44,11 +44,11 @@ class BootSplashScreen::CopyHostContentLayerDelegate
   }
 
   virtual void OnDelegatedFrameDamage(
-      const gfx::Rect& damage_rect_in_dip) OVERRIDE {}
+      const gfx::Rect& damage_rect_in_dip) override {}
 
-  virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE {}
+  virtual void OnDeviceScaleFactorChanged(float device_scale_factor) override {}
 
-  virtual base::Closure PrepareForLayerBoundsChange() OVERRIDE {
+  virtual base::Closure PrepareForLayerBoundsChange() override {
     return base::Closure();
   }