Implemented system tray UI for new account management.

ash/shell_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_SHELL_DELEGATE_H_
 #define ASH_SHELL_DELEGATE_H_
 
 #include <string>
 
 #include "ash/ash_export.h"
@@ skipping 63 matching lines @@
   // Returns true if multi-profiles feature is enabled.
   virtual bool IsMultiProfilesEnabled() const = 0;
 
   // Returns true if incognito mode is allowed for the user.
   // Incognito windows are restricted for supervised users.
   virtual bool IsIncognitoAllowed() const = 0;
 
   // Returns true if we're running in forced app mode.
   virtual bool IsRunningInForcedAppMode() const = 0;
 
+  // Returns true if multi account is enabled.
+  virtual bool IsMultiAccountEnabled() const = 0;
+
   // Called before processing |Shell::Init()| so that the delegate
   // can perform tasks necessary before the shell is initialized.
   virtual void PreInit() = 0;
 
   // Called at the beginninig of Shell destructor so that
   // delegate can use Shell instance to perform cleanup tasks.
   virtual void PreShutdown() = 0;
 
   // Invoked when the user uses Ctrl-Shift-Q to close chrome.
   virtual void Exit() = 0;
@@ skipping 56 matching lines @@
   // Creates a GPU support object. Shell takes ownership of the object.
   virtual GPUSupport* CreateGPUSupport() = 0;
 
   // Get the product name.
   virtual base::string16 GetProductName() const = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_