replace OVERRIDE and FINAL with override and final in chrome/browser/chromeos/

chrome/browser/chromeos/system/pointer_device_observer.h

Index: chrome/browser/chromeos/system/pointer_device_observer.h
diff --git a/chrome/browser/chromeos/system/pointer_device_observer.h b/chrome/browser/chromeos/system/pointer_device_observer.h
index 5ea62b988db4e78eeccab05c710972643cba3da7..2e919033497c4d7690b24ffb50f21c7f8152969d 100644
--- a/chrome/browser/chromeos/system/pointer_device_observer.h
+++ b/chrome/browser/chromeos/system/pointer_device_observer.h
@@ -37,9 +37,9 @@ class PointerDeviceObserver : public DeviceHierarchyObserver {
 
  private:
   // DeviceHierarchyObserver implementation.
-  virtual void DeviceHierarchyChanged() OVERRIDE;
-  virtual void DeviceAdded(int device_id) OVERRIDE {}
-  virtual void DeviceRemoved(int device_id) OVERRIDE {}
+  virtual void DeviceHierarchyChanged() override;
+  virtual void DeviceAdded(int device_id) override {}
+  virtual void DeviceRemoved(int device_id) override {}
 
   // Check for pointer devices.
   void CheckTouchpadExists();