Add PrintedPage::GetCenteredPageContentRect so Mac and Win can share code.

printing/printing.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 79 matching lines @@
       ],
       'sources': [
         'emf_win_unittest.cc',
         'printing_test.h',
         'page_number_unittest.cc',
         'page_overlays_unittest.cc',
         'page_range_unittest.cc',
         'page_setup_unittest.cc',
         'pdf_metafile_mac_unittest.cc',
         'pdf_ps_metafile_cairo_unittest.cc',
+        'printed_page_unittest.cc',
         'printing_context_win_unittest.cc',
         'run_all_unittests.cc',
         'units_unittest.cc',
       ],
       'conditions': [
         ['OS!="linux"', {'sources/': [['exclude', '_cairo_unittest\\.cc$']]}],
         ['OS!="mac"', {'sources/': [['exclude', '_mac_unittest\\.(cc|mm?)$']]}],
         ['OS!="win"', {'sources/': [['exclude', '_win_unittest\\.cc$']]
           }, {  # else: OS=="win"
             'sources/': [['exclude', '_cairo_unittest\\.cc$']]
@@ skipping 16 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: