Implement support for USB Xbox360 controllers without a driver on Mac.

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     'browser/speech/proto/speech_proto.gyp:speech_proto',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 427 matching lines @@
     'browser/gamepad/gamepad_platform_data_fetcher_win.cc',
     'browser/gamepad/gamepad_platform_data_fetcher_win.h',
     'browser/gamepad/gamepad_provider.cc',
     'browser/gamepad/gamepad_provider.h',
     'browser/gamepad/gamepad_service.cc',
     'browser/gamepad/gamepad_service.h',
     'browser/gamepad/gamepad_standard_mappings.h',
     'browser/gamepad/gamepad_standard_mappings_linux.cc',
     'browser/gamepad/gamepad_standard_mappings_mac.mm',
     'browser/gamepad/gamepad_standard_mappings_win.cc',
+    'browser/gamepad/xbox_data_fetcher_mac.cc',
+    'browser/gamepad/xbox_data_fetcher_mac.h',
     'browser/geolocation/core_location_data_provider_mac.h',
     'browser/geolocation/core_location_data_provider_mac.mm',
     'browser/geolocation/core_location_provider_mac.h',
     'browser/geolocation/core_location_provider_mac.mm',
     'browser/geolocation/device_data_provider.cc',
     'browser/geolocation/device_data_provider.h',
     'browser/geolocation/empty_device_data_provider.cc',
     'browser/geolocation/empty_device_data_provider.h',
     'browser/geolocation/geolocation.cc',
     'browser/geolocation/geolocation_dispatcher_host.cc',
@@ skipping 861 matching lines @@
         '../third_party/speex/speex.gyp:libspeex',
       ],
     }],
     ['linux_use_libgps==1', {
       'dependencies': [
         '../build/linux/system.gyp:libgps',
       ],
     }],
   ],
 }