Move root_window.* to window_event_dispatcher.*

ash/wm/drag_window_resizer_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/wm/drag_window_resizer.h"
 
 #include "ash/display/mouse_cursor_event_filter.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/cursor_manager_test_api.h"
 #include "ash/wm/drag_window_controller.h"
 #include "ash/wm/window_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "ui/aura/client/aura_constants.h"
-#include "ui/aura/root_window.h"
 #include "ui/aura/test/test_window_delegate.h"
+#include "ui/aura/window_event_dispatcher.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/corewm/window_util.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/user/tray_user.h"
@@ skipping 690 matching lines @@
     resizer->CompleteDrag();
     EXPECT_EQ(1, session_delegate->num_transfer_to_desktop_of_user_calls());
     EXPECT_NE(initial_bounds.ToString(), window->bounds().ToString());
   }
 }
 #endif
 
 
 }  // namespace internal
 }  // namespace ash