Fixes build breakage

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")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 assert(use_aura)
@@ skipping 398 matching lines @@
     "common/system/user/user_card_view.cc",
     "common/system/user/user_card_view.h",
     "common/system/user/user_observer.h",
     "common/system/user/user_view.cc",
     "common/system/user/user_view.h",
     "common/system/volume_control_delegate.h",
     "common/system/web_notification/ash_popup_alignment_delegate.cc",
     "common/system/web_notification/ash_popup_alignment_delegate.h",
     "common/system/web_notification/web_notification_tray.cc",
     "common/system/web_notification/web_notification_tray.h",
+    "common/wallpaper/wallpaper_controller.cc",
+    "common/wallpaper/wallpaper_controller.h",
+    "common/wallpaper/wallpaper_controller_observer.h",
     "common/wallpaper/wallpaper_delegate.h",
+    "common/wallpaper/wallpaper_view.cc",
+    "common/wallpaper/wallpaper_view.h",
+    "common/wallpaper/wallpaper_widget_controller.cc",
+    "common/wallpaper/wallpaper_widget_controller.h",
     "common/wm/always_on_top_controller.cc",
     "common/wm/always_on_top_controller.h",
     "common/wm/background_animator.cc",
     "common/wm/background_animator.h",
     "common/wm/container_finder.cc",
     "common/wm/container_finder.h",
     "common/wm/default_state.cc",
     "common/wm/default_state.h",
     "common/wm/default_window_resizer.cc",
     "common/wm/default_window_resizer.h",
@@ skipping 275 matching lines @@
     "touch/touch_transformer_controller.cc",
     "touch/touch_transformer_controller.h",
     "touch/touch_uma.cc",
     "touch/touch_uma.h",
     "touch/touchscreen_util.cc",
     "touch/touchscreen_util.h",
     "utility/screenshot_controller.cc",
     "utility/screenshot_controller.h",
     "virtual_keyboard_controller.cc",
     "virtual_keyboard_controller.h",
-    "wallpaper/wallpaper_controller.cc",
-    "wallpaper/wallpaper_controller.h",
-    "wallpaper/wallpaper_controller_observer.h",
-    "wallpaper/wallpaper_view.cc",
-    "wallpaper/wallpaper_view.h",
-    "wallpaper/wallpaper_widget_controller.cc",
-    "wallpaper/wallpaper_widget_controller.h",
     "wm/ash_focus_rules.cc",
     "wm/ash_focus_rules.h",
     "wm/ash_native_cursor_manager.cc",
     "wm/ash_native_cursor_manager.h",
     "wm/boot_splash_screen_chromeos.cc",
     "wm/boot_splash_screen_chromeos.h",
     "wm/cursor_manager_chromeos.cc",
     "wm/cursor_manager_chromeos.h",
     "wm/dim_window.cc",
     "wm/dim_window.h",
@@ skipping 655 matching lines @@
     "common/system/chromeos/screen_security/screen_tray_item_unittest.cc",
     "common/system/chromeos/session/logout_confirmation_controller_unittest.cc",
     "common/system/chromeos/session/tray_session_length_limit_unittest.cc",
     "common/system/chromeos/supervised/tray_supervised_user_unittest.cc",
     "common/system/date/date_view_unittest.cc",
     "common/system/ime/tray_ime_chromeos_unittest.cc",
     "common/system/tray/system_tray_unittest.cc",
     "common/system/tray/tray_details_view_unittest.cc",
     "common/system/update/tray_update_unittest.cc",
     "common/system/user/tray_user_unittest.cc",
+    "common/wallpaper/wallpaper_controller_unittest.cc",
     "common/wm/container_finder_unittest.cc",
     "common/wm/overview/cleanup_animation_observer_unittest.cc",
     "common/wm/workspace/workspace_event_handler_test_helper.cc",
     "common/wm/workspace/workspace_event_handler_test_helper.h",
     "dip_unittest.cc",
     "display/cursor_window_controller_unittest.cc",
     "display/display_change_observer_chromeos_unittest.cc",
     "display/display_color_manager_chromeos_unittest.cc",
     "display/display_error_observer_chromeos_unittest.cc",
     "display/display_manager_unittest.cc",
@@ skipping 41 matching lines @@
     "system/web_notification/web_notification_tray_unittest.cc",
     "test/ash_test_environment_default.cc",
     "test/ash_test_helper_unittest.cc",
     "test/ash_unittests.cc",
     "tooltips/tooltip_controller_unittest.cc",
     "touch/touch_observer_hud_unittest.cc",
     "touch/touch_transformer_controller_unittest.cc",
     "touch/touchscreen_util_unittest.cc",
     "utility/screenshot_controller_unittest.cc",
     "virtual_keyboard_controller_unittest.cc",
-    "wallpaper/wallpaper_controller_unittest.cc",
     "wm/always_on_top_controller_unittest.cc",
     "wm/ash_focus_rules_unittest.cc",
     "wm/ash_native_cursor_manager_unittest.cc",
     "wm/dock/docked_window_layout_manager_unittest.cc",
     "wm/dock/docked_window_resizer_unittest.cc",
     "wm/drag_window_resizer_unittest.cc",
     "wm/gestures/overview_gesture_handler_unittest.cc",
     "wm/immersive_fullscreen_controller_unittest.cc",
     "wm/lock_layout_manager_unittest.cc",
     "wm/lock_state_controller_unittest.cc",
@@ skipping 168 matching lines @@
   if (is_win) {
     configs -= [ "//build/config/win:console" ]
     configs += [ "//build/config/win:windowed" ]
     deps += [ "//sandbox" ]
   }
 
   if (is_chromeos) {
     deps += [ "//device/bluetooth" ]
   }
 }