Created a new BrowserMessageFilter to handle print related IPC messages.

chrome/chrome_browser.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 1692 matching lines @@
         'browser/printing/print_job_worker.h',
         'browser/printing/print_job_worker_owner.h',
         'browser/printing/print_preview_message_handler.cc',
         'browser/printing/print_preview_message_handler.h',
         'browser/printing/print_preview_tab_controller.cc',
         'browser/printing/print_preview_tab_controller.h',
         'browser/printing/print_view_manager.cc',
         'browser/printing/print_view_manager.h',
         'browser/printing/printer_query.cc',
         'browser/printing/printer_query.h',
+        'browser/printing/printing_message_filter.cc',
+        'browser/printing/printing_message_filter.h',
         'browser/process_info_snapshot.h',
         'browser/process_info_snapshot_mac.cc',
         'browser/process_singleton.h',
         'browser/process_singleton_linux.cc',
         'browser/process_singleton_mac.cc',
         'browser/process_singleton_win.cc',
         'browser/profile_import_process_host.cc',
         'browser/profile_import_process_host.h',
         'browser/profiles/off_the_record_profile_io_data.cc',
         'browser/profiles/off_the_record_profile_io_data.h',
@@ skipping 2792 matching lines @@
       ],
     },
   ],
 }
 
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