Fix crash when locking a profile.

chrome/browser/profiles/avatar_menu_actions.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_PROFILES_AVATAR_MENU_ACTIONS_H_
 #define CHROME_BROWSER_PROFILES_AVATAR_MENU_ACTIONS_H_
 
 #include <string>
 
 #include "chrome/browser/profiles/avatar_menu.h"
@@ skipping 14 matching lines @@
   // Allows the user to edit the profile at the given index in the cache.
   virtual void EditProfile(Profile* profile, size_t index) = 0;
 
   // Returns true if the add profile link should be shown.
   virtual bool ShouldShowAddNewProfileLink() const = 0;
 
   // Returns true if the edit profile link should be shown.
   virtual bool ShouldShowEditProfileLink() const = 0;
 
   // Starts the sign-out process for this profile.
-  virtual content::WebContents* BeginSignOut() = 0;
-
-  // Sets a different URL to use for logout (for testing only).
-  virtual void SetLogoutURL(const std::string& logout_url) = 0;
+  virtual void BeginSignOut() = 0;
 
   // Updates the browser.
   // TODO: Delegate browser actions to remove dependency on Browser class.
   virtual void ActiveBrowserChanged(Browser* browser) = 0;
 };
 
 #endif  // CHROME_BROWSER_PROFILES_AVATAR_MENU_ACTIONS_H_