Make using WebContentsUserData simpler.

chrome/browser/ssl/ssl_tab_helper.cc

 // 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.
 
 #include "chrome/browser/ssl/ssl_tab_helper.h"
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 163 matching lines @@
   if (infobar_delegate_ ==
       ((type == chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED) ?
           content::Details<InfoBarRemovedDetails>(details)->first :
           content::Details<InfoBarReplacedDetails>(details)->first))
     infobar_delegate_ = NULL;
 }
 
 
 // SSLTabHelper ----------------------------------------------------------------
 
-int SSLTabHelper::kUserDataKey;
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(SSLTabHelper)
 
 SSLTabHelper::SSLTabHelper(content::WebContents* contents)
     : web_contents_(contents) {
 }
 
 SSLTabHelper::~SSLTabHelper() {
 }
 
 void SSLTabHelper::ShowClientCertificateRequestDialog(
     const net::HttpNetworkSession* network_session,
@@ skipping 48 matching lines @@
 SSLTabHelper::SSLAddCertData*
 SSLTabHelper::GetAddCertData(SSLAddCertHandler* handler) {
   // Find/create the slot.
   linked_ptr<SSLAddCertData>& ptr_ref =
       request_id_to_add_cert_data_[handler->network_request_id()];
   // Fill it if necessary.
   if (!ptr_ref.get())
     ptr_ref.reset(new SSLAddCertData(web_contents_));
   return ptr_ref.get();
 }