Remove PrepareForShutdown

apps/shell/browser/shell_browser_main_parts.cc

 // Copyright 2013 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 "apps/shell/browser/shell_browser_main_parts.h"
 
 #include "apps/browser_context_keyed_service_factories.h"
 #include "apps/shell/browser/shell_apps_client.h"
 #include "apps/shell/browser/shell_browser_context.h"
 #include "apps/shell/browser/shell_extension_system.h"
@@ skipping 176 matching lines @@
   wm_test_helper_->host()->Show();
   // Watch for the user clicking the close box.
   wm_test_helper_->host()->AddObserver(this);
 }
 
 void ShellBrowserMainParts::DestroyRootWindow() {
   // We should close widget before destroying root window.
   webview_window_.reset();
   devtools_delegate_->Stop();
   wm_test_helper_->host()->RemoveObserver(this);
-  wm_test_helper_->host()->dispatcher()->PrepareForShutdown();
   wm_test_helper_.reset();
   ui::ShutdownInputMethodForTesting();
 }
 
 void ShellBrowserMainParts::CreateViewsDelegate() {
   DCHECK(!views::ViewsDelegate::views_delegate);
   views::ViewsDelegate::views_delegate =
       new ShellViewsDelegate(wm_test_helper_->host()->window());
 }
 
 void ShellBrowserMainParts::DestroyViewsDelegate() {
   delete views::ViewsDelegate::views_delegate;
   views::ViewsDelegate::views_delegate = NULL;
 }
 
 void ShellBrowserMainParts::CreateExtensionSystem() {
   DCHECK(browser_context_);
   extension_system_ = static_cast<ShellExtensionSystem*>(
       ExtensionSystem::Get(browser_context_.get()));
   extension_system_->InitForRegularProfile(true);
 }
 
 }  // namespace apps