Adding new user menu section to the SystemTrayMenu & refactoring of user access

ash/system/tray/system_tray_delegate.h

 // 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.
 
 #ifndef ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 92 matching lines @@
   std::string id;
   base::string16 name;
   base::string16 medium_name;
   base::string16 short_name;
 };
 
 typedef std::vector<IMEInfo> IMEInfoList;
 
 class VolumeControlDelegate;
 
-typedef std::vector<std::string> UserEmailList;
-
 class SystemTrayDelegate {
  public:
   virtual ~SystemTrayDelegate() {}
 
   // Called after SystemTray has been instantiated.
   virtual void Initialize() = 0;
 
   // Called before SystemTray is destroyed.
   virtual void Shutdown() = 0;
 
   // Returns true if system tray should be visible on startup.
   virtual bool GetTrayVisibilityOnStartup() = 0;
 
   // Gets information about the active user.
-  virtual const base::string16 GetUserDisplayName() const = 0;
-  virtual const std::string GetUserEmail() const = 0;
-  virtual const gfx::ImageSkia& GetUserImage() const = 0;
   virtual user::LoginStatus GetUserLoginStatus() const = 0;
   virtual bool IsOobeCompleted() const = 0;
 
-  // Returns a list of all logged in users.
-  virtual void GetLoggedInUsers(UserEmailList* users) = 0;
-
-  // Switches to another active user (if that user has already signed in).
-  virtual void SwitchActiveUser(const std::string& email) = 0;
-
   // Shows UI for changing user's profile picture.
   virtual void ChangeProfilePicture() = 0;
 
   // Returns the domain that manages the device, if it is enterprise-enrolled.
   virtual const std::string GetEnterpriseDomain() const = 0;
 
   // Returns notification for enterprise enrolled devices.
   virtual const base::string16 GetEnterpriseMessage() const = 0;
 
   // Returns the email of user that manages current locally managed user.
@@ skipping 217 matching lines @@
   // Speaks the given text if spoken feedback is enabled.
   virtual void MaybeSpeak(const std::string& utterance) const = 0;
 
   // Creates a dummy delegate for testing.
   static SystemTrayDelegate* CreateDummyDelegate();
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_