aura-mus: Remove dead code.

chrome/browser/ui/views/frame/immersive_mode_controller_ash.cc

 // Copyright 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 "chrome/browser/ui/views/frame/immersive_mode_controller_ash.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/shared/immersive_revealed_lock.h"
 #include "ash/shell.h"
 #include "ash/wm/window_state_aura.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/ui/ash/ash_util.h"
 #include "chrome/browser/ui/exclusive_access/exclusive_access_manager.h"
 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/frame/top_container_view.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "services/ui/public/cpp/property_type_converters.h"
 #include "services/ui/public/interfaces/window_manager.mojom.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/mus/mus_types.h"
-#include "ui/aura/mus/mus_util.h"
 #include "ui/aura/mus/property_converter.h"
 #include "ui/aura/mus/window_port_mus.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/paint_context.h"
 #include "ui/compositor/paint_recorder.h"
 #include "ui/views/background.h"
 #include "ui/views/mus/mus_client.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/native_widget_aura.h"
@@ skipping 318 matching lines @@
                                                          const void* key,
                                                          intptr_t old) {
   // In mash the window manager may move us out of immersive mode by changing
   // the show state. When this happens notify the controller.
   DCHECK(chrome::IsRunningInMash());
   if (key == aura::client::kShowStateKey &&
       !browser_view_->GetWidget()->IsFullscreen()) {
     SetEnabled(false);
   }
 }