Remove X11 deps from //ui/events:events_base.

ui/events/devices/x11/events_devices_x11.gyp

 # Copyright 2016 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,
   },
   'targets': [
     {
       'target_name': 'events_devices_x11',
       'type': '<(component)',
       'dependencies': [
         '../../../../base/base.gyp:base',
         '../../../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../../../../build/linux/system.gyp:x11',
         '../../../../skia/skia.gyp:skia',
         '../../../../ui/events/events.gyp:events_base',
         '../../../../ui/events/devices/events_devices.gyp:events_devices',
+        '../../../../ui/events/keycodes/events_keycodes.gyp:keycodes_x11',
         '../../../../ui/gfx/gfx.gyp:gfx',
         '../../../../ui/gfx/gfx.gyp:gfx_geometry',
         '../../../../ui/gfx/x/gfx_x11.gyp:gfx_x11',
       ],
       'defines': [
         'EVENTS_DEVICES_X11_IMPLEMENTATION',
       ],
       'sources': [
         'device_data_manager_x11.cc',
         'device_data_manager_x11.h',
         'device_list_cache_x11.cc',
         'device_list_cache_x11.h',
         'events_devices_x11_export.h',
         'touch_factory_x11.cc',
         'touch_factory_x11.h',
       ],
     },
   ],
 }