change newly added OVERRIDE to override in ash/

ash/system/tray/system_tray_unittest.cc

 // Copyright (c) 2012 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 "ash/system/tray/system_tray.h"
 
 #include <vector>
 
 #include "ash/accessibility_delegate.h"
 #include "ash/root_window_controller.h"
@@ skipping 149 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(ModalWidgetDelegate);
 };
 
 }  // namespace
 
 class SystemTrayTest : public AshTestBase {
  public:
   SystemTrayTest() {}
   virtual ~SystemTrayTest() {}
 
-  virtual void SetUp() OVERRIDE {
+  virtual void SetUp() override {
     CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kEnableTouchFeedback);
     test::AshTestBase::SetUp();
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SystemTrayTest);
 };
 
 TEST_F(SystemTrayTest, SystemTrayDefaultView) {
@@ skipping 390 matching lines @@
 
   generator.set_current_location(move_point);
   generator.ReleaseTouch();
   RunAllPendingInMessageLoop();
   EXPECT_FALSE(view->active());
 }
 #endif  // OS_CHROMEOS
 
 }  // namespace test
 }  // namespace ash