mac: Update relauncher to not use deprecated APIs.

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'variables': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 316 matching lines @@
       'browser/mac/keystone_glue.h',
       'browser/mac/keystone_glue.mm',
       'browser/mac/keystone_registration.h',
       'browser/mac/keystone_registration.mm',
       'browser/mac/mac_startup_profiler.cc',
       'browser/mac/mac_startup_profiler.h',
       'browser/mac/master_prefs.h',
       'browser/mac/master_prefs.mm',
       'browser/mac/nsprocessinfo_additions.h',
       'browser/mac/nsprocessinfo_additions.mm',
-      'browser/mac/relauncher.cc',
+      'browser/mac/relauncher.mm',
       'browser/mac/relauncher.h',
       'browser/mac/security_wrappers.cc',
       'browser/mac/security_wrappers.h',
       'browser/manifest/manifest_icon_downloader.cc',
       'browser/manifest/manifest_icon_downloader.h',
       'browser/manifest/manifest_icon_selector.cc',
       'browser/manifest/manifest_icon_selector.h',
       'browser/media/combined_desktop_media_list.cc',
       'browser/media/combined_desktop_media_list.h',
       'browser/media/desktop_media_list.h',
@@ skipping 3999 matching lines @@
             '../components/components.gyp:rlz',
             '../components/components.gyp:search_engines',
             '../rlz/rlz.gyp:rlz_lib',
             'common',
           ],
         },
       ],
     }],
   ],
 }