cros: Init SystemTrayDelegate earlier to break bluetooth init dependency

chrome/browser/ui/ash/system_tray_delegate_chromeos.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ASH_SYSTEM_TRAY_DELEGATE_CHROMEOS_H_
 #define CHROME_BROWSER_UI_ASH_SYSTEM_TRAY_DELEGATE_CHROMEOS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 44 matching lines @@
       public input_method::InputMethodManager::Observer,
       public policy::CloudPolicyStore::Observer,
       public chrome::BrowserListObserver,
       public extensions::AppWindowRegistry::Observer,
       public user_manager::UserManager::Observer,
       public user_manager::UserManager::UserSessionStateObserver,
       public SupervisedUserServiceObserver,
       public input_method::InputMethodManager::ImeMenuObserver {
  public:
   SystemTrayDelegateChromeOS();
-
   ~SystemTrayDelegateChromeOS() override;
 
-  // Completes initialization after the Bluetooth adapter is ready.
-  // TODO(jamescook): Eliminate this and just use Initialize().
-  // http://crbug.com/660043
-  void InitializeOnAdapterReady();
-
   // Overridden from ash::SystemTrayDelegate:
   void Initialize() override;
   ash::LoginStatus GetUserLoginStatus() const override;
   std::string GetEnterpriseDomain() const override;
   base::string16 GetEnterpriseMessage() const override;
   std::string GetSupervisedUserManager() const override;
   base::string16 GetSupervisedUserManagerName() const override;
   base::string16 GetSupervisedUserMessage() const override;
   bool IsUserSupervised() const override;
   bool IsUserChild() const override;
@@ skipping 140 matching lines @@
       custodian_info_changed_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegateChromeOS);
 };
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate();
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_ASH_SYSTEM_TRAY_DELEGATE_CHROMEOS_H_