ozone: Add UiThreadGpu for applications that do UI thread GL

ui/ozone/ozone.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,
     'external_ozone_platforms': [],
     'external_ozone_platform_files': [],
     'external_ozone_platform_deps': [],
@@ skipping 84 matching lines @@
         'common/chromeos/touchscreen_device_manager_ozone.h',
         'common/gpu/ozone_gpu_message_generator.cc',
         'common/gpu/ozone_gpu_message_generator.h',
         'common/gpu/ozone_gpu_message_params.cc',
         'common/gpu/ozone_gpu_message_params.h',
         'common/gpu/ozone_gpu_messages.h',
         'public/ozone_platform.cc',
         'public/ozone_platform.h',
         'public/ozone_switches.cc',
         'public/ozone_switches.h',
+        'public/ui_thread_gpu.cc',
+        'public/ui_thread_gpu.h',
         'platform_selection.cc',
         'platform_selection.h',
         '<@(external_ozone_platform_files)',
       ],
       'actions': [
         {
           # GN version: //ui/ozone:generate_ozone_platform_list
           'action_name': 'generate_ozone_platform_list',
           'variables': {
             'generator_path': 'generate_ozone_platform_list.py',
@@ skipping 90 matching lines @@
         'platform/dri/gbm.gypi',
       ],
     }],
     ['<(ozone_platform_test) == 1', {
       'includes': [
         'platform/test/test.gypi',
       ],
     }],
   ],
 }