C++11 override style change for athena

athena/util/drag_handle_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "athena/util/drag_handle.h"
 
 #include "ui/aura/test/aura_test_base.h"
 #include "ui/aura/window.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 
 namespace athena {
 
 class DragHandleDelegateTest : public DragHandleScrollDelegate {
  public:
   explicit DragHandleDelegateTest()
       : begin_delta_(0),
         scroll_end_velocity_(0),
         got_scroll_end_(false),
         update_delta_(0) {}
 
-  virtual ~DragHandleDelegateTest() {}
+  ~DragHandleDelegateTest() override {}
 
   void Reset() {
     begin_delta_ = 0;
     scroll_end_velocity_ = 0;
     got_scroll_end_ = false;
     update_delta_ = 0;
   }
 
   float begin_delta() { return begin_delta_; }
   float scroll_end_velocity() { return scroll_end_velocity_; }
@@ skipping 106 matching lines @@
   widget.OnGestureEvent(&e);
   EXPECT_TRUE(delegate.got_scroll_end());
   EXPECT_EQ(fling_velocity, delegate.scroll_end_velocity());
 
   delegate.Reset();
 
   drag_handle.reset();
 }
 
 }  // namespace athena