Reland of Implement basic USB device enumeration 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 411 matching lines @@
           ],
           'includes': [ '../build/java_aidl.gypi' ],
         },
         {
           'target_name': 'content_java',
           'type': 'none',
           'dependencies': [
             '../base/base.gyp:base',
             '../device/battery/battery.gyp:device_battery_java',
             '../device/bluetooth/bluetooth.gyp:device_bluetooth_java',
+            '../device/usb/usb.gyp:device_usb_java',
             '../device/vibration/vibration.gyp:device_vibration_java',
             '../media/media.gyp:media_java',
             '../mojo/mojo_base.gyp:mojo_application_bindings',
             '../mojo/mojo_base.gyp:mojo_system_java',
             '../net/net.gyp:net',
             '../skia/skia.gyp:skia_mojo',
             '../third_party/mojo/mojo_public.gyp:mojo_bindings_java',
             '../ui/android/ui_android.gyp:ui_java',
             '../ui/touch_selection/ui_touch_selection.gyp:selection_event_type_java',
             '../ui/touch_selection/ui_touch_selection.gyp:touch_handle_orientation_java',
@@ skipping 205 matching lines @@
           },
           'includes': [
             '../build/android/copy_ex.gypi',
             '../build/android/v8_external_startup_data_arch_suffix.gypi',
           ],
         },
       ],
     }],  # OS == "android"
   ],
 }