Gamepad API support for chrome on android

content/content.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,  # Use higher warning level.
     'chromium_enable_vtune_jit_for_v8%': 0,  # enable the vtune support for V8 engine.
     'directxsdk_exists': '<!pymod_do_main(dir_exists ../third_party/directxsdk)',
   },
@@ skipping 403 matching lines @@
         {
           'target_name': 'content_java',
           'type': 'none',
           'dependencies': [
             '../base/base.gyp:base',
             '../media/media.gyp:media_java',
             '../net/net.gyp:net',
             '../ui/android/ui_android.gyp:ui_java',
             'common_aidl',
             'content_common',
+            'content_gamepad_mapping',
             'gesture_event_type_java',
             'page_transition_types_java',
             'popup_item_type_java',
             'result_codes_java',
             'speech_recognition_error_java',
             'top_controls_state_java',
             'screen_orientation_values_java',
           ],
           'variables': {
             'java_in_dir': '../content/public/android/java',
@@ skipping 133 matching lines @@
                 {
                   'destination': '<(PRODUCT_DIR)/content_shell/assets',
                   'files': [
                     '<(PRODUCT_DIR)/icudtl.dat',
                   ],
                 },
               ],
             }],
           ],
         },
+        {
+          'target_name': 'content_gamepad_mapping',
+          'type': 'none',
+          'sources': [
+            'public/android/java/src/org/chromium/content/browser/input/CanonicalButtonIndex.template',
+            'public/android/java/src/org/chromium/content/browser/input/CanonicalAxisIndex.template',
+          ],
+          'variables': {
+            'package_name': 'org/chromium/content/browser/input',
+            'template_deps': [
+              'browser/gamepad/canonical_axis_index_list.h',
+              'browser/gamepad/canonical_button_index_list.h',
+            ],
+          },
+          'includes': [ '../build/android/java_cpp_template.gypi' ],
+        },
       ],
     }],  # OS == "android"
   ],
 }