Fix wrong inclusion of .cc file in ash/

ash/accelerators/accelerator_controller_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/accelerators/accelerator_controller.h"
 
 #include "ash/accelerators/accelerator_table.h"
 #include "ash/accessibility_delegate.h"
 #include "ash/accessibility_types.h"
 #include "ash/ash_switches.h"
@@ skipping 13 matching lines @@
 #include "ash/test/test_shelf_delegate.h"
 #include "ash/wm/lock_state_controller.h"
 #include "ash/wm/panels/panel_layout_manager.h"
 #include "ash/wm/window_positioning_utils.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_state_aura.h"
 #include "ash/wm/window_util.h"
 #include "ash/wm/wm_event.h"
 #include "ash/wm_window.h"
 #include "base/command_line.h"
-#include "base/test/user_action_tester.cc"
+#include "base/test/user_action_tester.h"
 #include "services/ui/public/interfaces/window_manager_constants.mojom.h"
 #include "ui/app_list/presenter/app_list.h"
 #include "ui/app_list/presenter/test/test_app_list_presenter.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/test/test_windows.h"
 #include "ui/aura/window.h"
 #include "ui/base/ime/chromeos/fake_ime_keyboard.h"
 #include "ui/base/ime/chromeos/ime_keyboard.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
@@ skipping 1326 matching lines @@
     // Expect no notifications from the new accelerators.
     EXPECT_TRUE(IsMessageCenterEmpty());
 
     // If the action is LOCK_SCREEN, we must reset the state by unlocking the
     // screen before we proceed testing the rest of accelerators.
     ResetStateIfNeeded();
   }
 }
 
 }  // namespace ash