Updating Gamepad API to match latest spec

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': [
     '../third_party/re2/re2.gyp:re2',
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
@@ skipping 542 matching lines @@
     'browser/gamepad/gamepad_platform_data_fetcher_linux.cc',
     'browser/gamepad/gamepad_platform_data_fetcher_linux.h',
     'browser/gamepad/gamepad_platform_data_fetcher_mac.h',
     'browser/gamepad/gamepad_platform_data_fetcher_mac.mm',
     '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.cc',
     '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/raw_input_data_fetcher_win.cc',
     'browser/gamepad/raw_input_data_fetcher_win.h',
     'browser/gamepad/xbox_data_fetcher_mac.cc',
     'browser/gamepad/xbox_data_fetcher_mac.h',
     'browser/geolocation/empty_wifi_data_provider.cc',
     'browser/geolocation/empty_wifi_data_provider.h',
@@ skipping 1085 matching lines @@
         '../build/linux/system.gyp:dbus',
         '../dbus/dbus.gyp:dbus',
       ],
     }, {  # OS != "linux" or use_dbus==0
       'sources!': [
         'browser/geolocation/wifi_data_provider_linux.cc',
       ],
     }],
   ],
 }