XXX test gn format everything

ui/events/devices/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/ui.gni")
 
 component("devices") {
   sources = [
     "device_data_manager.cc",
     "device_data_manager.h",
     "device_hotplug_event_observer.h",
     "device_util_linux.cc",
     "device_util_linux.h",
     "events_devices_export.h",
     "input_device.cc",
     "input_device.h",
     "input_device_event_observer.h",
     "keyboard_device.cc",
     "keyboard_device.h",
     "touchscreen_device.cc",
     "touchscreen_device.h",
   ]
 
-  defines = [
-    "EVENTS_DEVICES_IMPLEMENTATION",
-  ]
+  defines = [ "EVENTS_DEVICES_IMPLEMENTATION" ]
 
   deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//skia",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   if (use_x11) {
     configs += [ "//build/config/linux:x11" ]
 
     sources += [
       "x11/device_data_manager_x11.cc",
       "x11/device_data_manager_x11.h",
       "x11/device_list_cache_x11.cc",
       "x11/device_list_cache_x11.h",
       "x11/touch_factory_x11.cc",
       "x11/touch_factory_x11.h",
     ]
 
     deps += [
       "//ui/events:events_base",
       "//ui/gfx/x",
     ]
   }
 }