Moving input device hotplug event processing outside of ui/display

ui/events/events.gyp

 # Copyright 2013 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': [
     {
@@ skipping 39 matching lines @@
         'keycodes/keyboard_code_conversion_android.h',
         'keycodes/keyboard_code_conversion_mac.h',
         'keycodes/keyboard_code_conversion_mac.mm',
         'keycodes/keyboard_code_conversion_win.cc',
         'keycodes/keyboard_code_conversion_win.h',
         'keycodes/keyboard_code_conversion_x.cc',
         'keycodes/keyboard_code_conversion_x.h',
         'keycodes/keyboard_codes.h',
         'latency_info.cc',
         'latency_info.h',
+        'touchscreen_device.cc',
+        'touchscreen_device.h',
         'x/device_data_manager_x11.cc',
         'x/device_data_manager_x11.h',
         'x/device_list_cache_x.cc',
         'x/device_list_cache_x.h',
         'x/touch_factory_x11.cc',
         'x/touch_factory_x11.h',
       ],
       'export_dependent_settings': [
         '../../ui/gfx/gfx.gyp:gfx',
       ],
@@ skipping 276 matching lines @@
           ],
           'variables': {
             'test_suite_name': 'events_unittests',
           },
           'includes': [ '../../build/apk_test.gypi' ],
         },
       ],
     }],
   ],
 }