Handle multiple signin_internal_uis by using a linked_ptr

chrome/browser/ui/webui/signin_internals_ui.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 CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 13 matching lines @@
   virtual bool OverrideHandleWebUIMessage(const GURL& source_url,
                                           const std::string& name,
                                           const base::ListValue& args) OVERRIDE;
 
   // AboutSigninInternals::Observer::OnSigninStateChanged implementation.
   virtual void OnSigninStateChanged(
       scoped_ptr<base::DictionaryValue> info) OVERRIDE;
 
   // Notification that the cookie accounts are ready to be displayed.
   virtual void OnCookieAccountsFetched(
-      scoped_ptr<base::DictionaryValue> info) OVERRIDE;
+      linked_ptr<base::DictionaryValue> info) OVERRIDE;

[Roger Tawa OOO till Jul 10th, 2014/09/25 01:14:05]

Would be better to change this function and the one above to take arg:

   const base::Dictionary* info

[Mike Lerman, 2014/09/25 17:28:34]

Done.

 
  private:
   DISALLOW_COPY_AND_ASSIGN(SignInInternalsUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SIGNIN_INTERNALS_UI_H_