--- chromium-60.0.3112.40/tools/gn/bootstrap/bootstrap.py.gn-bootstrap	2017-06-22 00:03:20.000000000 +0200
+++ chromium-60.0.3112.40/tools/gn/bootstrap/bootstrap.py	2017-06-25 14:16:34.080226787 +0200
@@ -487,6 +487,7 @@
       'base/sys_info.cc',
       'base/task_runner.cc',
       'base/task_scheduler/delayed_task_manager.cc',
+      'base/task_scheduler/environment_config.cc',
       'base/task_scheduler/post_task.cc',
       'base/task_scheduler/priority_queue.cc',
       'base/task_scheduler/scheduler_lock_impl.cc',