GN: Get os="chromeos" use_ozone=true to compile

ash/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/features.gni")
 import("//build/config/ui.gni")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("ash.gyp") ],
@@ skipping 56 matching lines @@
       "//build/config/linux:xfixes",
     ]
   } else {
     sources -= [
       "accelerators/key_hold_detector.cc",
       "accelerators/key_hold_detector.h",
       "accelerators/magnifier_key_scroller.cc",
       "accelerators/magnifier_key_scroller.h",
       "accelerators/spoken_feedback_toggler.cc",
       "accelerators/spoken_feedback_toggler.h",
+      "host/ash_window_tree_host_x11.cc",
+      "host/ash_window_tree_host_x11.h",
+      "wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.cc",
+      "wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_x11.h",
     ]
   }
 
   if (is_chromeos) {
     deps += [
       "//device/bluetooth",
       "//ui/display",
       "//ui/display/util",
       "//chromeos",
       "//chromeos:power_manager_proto",
       "//ui/chromeos/resources",
       "//ui/chromeos/strings",
       "//ui/chromeos:ui_chromeos",
     ]
   } else {
     sources -= [
       "display/display_configurator_animation.cc",
       "display/display_configurator_animation.h",
       "display/resolution_notification_controller.cc",
       "display/resolution_notification_controller.h",
       "system/tray/media_security/media_capture_observer.h",
       "system/tray/media_security/multi_profile_media_tray_item.cc",
       "system/tray/media_security/multi_profile_media_tray_item.h",
+      "touch/touch_transformer_controller.cc",
+      "touch/touch_transformer_controller.h",
+      "touch/touchscreen_util.cc",
+      "touch/touchscreen_util.h",
       "virtual_keyboard_controller.cc",
       "virtual_keyboard_controller.h",
     ]
   }
 
-  if (!use_x11 || !is_chromeos) {
-    sources -= [
-      "touch/touch_transformer_controller.cc",
-      "touch/touch_transformer_controller.h",
-      "touch/touchscreen_util.cc",
-      "touch/touchscreen_util.h",
-    ]
-  }
-
   if (!use_ozone) {
     sources -= [
       "host/ash_window_tree_host_ozone.cc",
     ]
   }
 }
 
 component("ash_with_content") {
   sources = [
     "content_support/ash_with_content_export.h",
@@ skipping 170 matching lines @@
   }
 
   if (is_win) {
     cflags = [ "/wd4267" ]
   }
 
   if (!use_x11) {
     sources -= [
       "accelerators/magnifier_key_scroller_unittest.cc",
       "accelerators/spoken_feedback_toggler_unittest.cc",
+      "host/ash_window_tree_host_x11_unittest.cc",
     ]
   }
   if (is_chromeos) {
     sources += [ "first_run/first_run_helper_unittest.cc" ]
     deps += [
       "//device/bluetooth",
       "//ui/display",
       "//ui/display:test_util",
       "//ui/display/types",
       "//chromeos:power_manager_proto",
@@ skipping 61 matching lines @@
     "//content/test:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/accessibility",
   ]
 
   if (is_chromeos) {
     deps += [ "//ui/display" ]
   }
 }