Makes construction of (ash)RemoteWindowTreeHostWin explicit

ash/shell/content_client/shell_browser_main_parts.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/shell/content_client/shell_browser_main_parts.h"
 
 #include "ash/ash_switches.h"
 #include "ash/desktop_background/desktop_background_controller.h"
 #include "ash/shell.h"
 #include "ash/shell/shell_delegate_impl.h"
 #include "ash/shell/window_watcher.h"
+#include "ash/shell_init_params.h"
 #include "ash/system/user/login_status.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/i18n/icu_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/public/common/content_switches.h"
 #include "content/shell/browser/shell_browser_context.h"
@@ skipping 92 matching lines @@
   // The global message center state must be initialized absent
   // g_browser_process.
   message_center::MessageCenter::Initialize();
 
 #if defined(OS_CHROMEOS)
   // Create CrasAudioHandler for testing since g_browser_process
   // is absent.
   chromeos::CrasAudioHandler::InitializeForTesting();
 #endif
 
-  ash::Shell::CreateInstance(delegate_);
+  ash::ShellInitParams init_params;
+  init_params.delegate = delegate_;
+  ash::Shell::CreateInstance(init_params);
   delegate_->set_browser_context(browser_context_.get());
   ash::Shell::GetInstance()->CreateShelf();
   ash::Shell::GetInstance()->UpdateAfterLoginStatusChange(
       user::LOGGED_IN_USER);
 
   window_watcher_.reset(new ash::shell::WindowWatcher);
   gfx::Screen* screen = Shell::GetInstance()->GetScreen();
   screen->AddObserver(window_watcher_.get());
   delegate_->SetWatcher(window_watcher_.get());
 
@@ skipping 27 matching lines @@
   browser_context_.reset();
 }
 
 bool ShellBrowserMainParts::MainMessageLoopRun(int* result_code) {
   base::MessageLoopForUI::current()->Run();
   return true;
 }
 
 }  // namespace shell
 }  // namespace ash