Don't use request user data during one-click sign in

chrome/browser/ui/sync/one_click_signin_helper.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_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 #define CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 55 matching lines @@
   };
 
   // Argument to CanOffer().
   enum CanOfferFor {
     CAN_OFFER_FOR_ALL,
     CAN_OFFER_FOR_INTERSTITAL_ONLY
   };
 
   virtual ~OneClickSigninHelper();
 
-  // Called only by tests to associate information with a given request.
-  static void AssociateWithRequestForTesting(base::SupportsUserData* request,
-                                             const std::string& email);
-
   // Returns true if the one-click signin feature can be offered at this time.
   // If |email| is not empty, then the profile is checked to see if it's
   // already connected to a google account or if the user has already rejected
   // one-click sign-in with this email, in which cases a one click signin
   // should not be offered.
   //
   // If |can_offer_for| is |CAN_OFFER_FOR_INTERSTITAL_ONLY|, then only do the
   // checks that would affect the interstitial page.  Otherwise, do the checks
   // that would affect the interstitial and the explicit sign ins.
   //
@@ skipping 107 matching lines @@
   SyncPromoUI::Source source_;
   GURL continue_url_;
   std::string error_message_;
 
   scoped_ptr<SigninTracker> signin_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(OneClickSigninHelper);
 };
 
 #endif  // CHROME_BROWSER_UI_SYNC_ONE_CLICK_SIGNIN_HELPER_H_