Merge 153342 - Print preview: Use an ID instead of memory pointer string in WebUI.

chrome/browser/printing/printing_message_filter.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_PRINTING_PRINTING_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 89 matching lines @@
   // handled by the print worker thread and the UI thread. The reply occurs on
   // the IO thread.
   void OnUpdatePrintSettings(int document_cookie,
                              const base::DictionaryValue& job_settings,
                              IPC::Message* reply_msg);
   void OnUpdatePrintSettingsReply(
       scoped_refptr<printing::PrinterQuery> printer_query,
       IPC::Message* reply_msg);
 
   // Check to see if print preview has been cancelled.
-  void OnCheckForCancel(const std::string& preview_ui_addr,
+  void OnCheckForCancel(int32 preview_ui_id,
                         int preview_request_id,
                         bool* cancel);
 
   printing::PrintJobManager* print_job_manager_;
 
   ProfileIOData* profile_io_data_;
 
   int render_process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingMessageFilter);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINTING_MESSAGE_FILTER_H_