Renames WmWindowUserData and converts to using aura

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")
 
 # Historical note: Ash shipped on Windows for a couple years to support
@@ skipping 568 matching lines @@
     "common/wm/workspace/workspace_window_resizer.h",
     "common/wm/workspace_controller.cc",
     "common/wm/workspace_controller.h",
     "common/wm_display_observer.h",
     "common/wm_layout_manager.h",
     "common/wm_shell.cc",
     "common/wm_shell.h",
     "common/wm_transient_window_observer.h",
     "common/wm_window.cc",
     "common/wm_window.h",
-    "common/wm_window_user_data.h",
     "debug.cc",
     "debug.h",
     "default_wallpaper_delegate.cc",
     "default_wallpaper_delegate.h",
     "display/cursor_window_controller.cc",
     "display/cursor_window_controller.h",
     "display/display_animator.h",
     "display/display_animator_chromeos.cc",
     "display/display_animator_chromeos.h",
     "display/display_color_manager_chromeos.cc",
@@ skipping 598 matching lines @@
     "common/system/tray/tray_details_view_unittest.cc",
     "common/system/tray/tri_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/mru_window_tracker_unittest.cc",
     "common/wm/overview/cleanup_animation_observer_unittest.cc",
     "common/wm/workspace/workspace_layout_manager_unittest.cc",
     "common/wm_window_unittest.cc",
-    "common/wm_window_user_data_unittest.cc",
     "first_run/first_run_helper_unittest.cc",
     "focus_cycler_unittest.cc",
     "frame/caption_buttons/frame_size_button_unittest.cc",
     "laser/laser_pointer_controller_unittest.cc",
     "laser/laser_pointer_points_unittest.cc",
     "laser/laser_segment_utils_unittest.cc",
     "metrics/desktop_task_switch_metric_recorder_unittest.cc",
     "metrics/task_switch_metrics_recorder_unittest.cc",
     "metrics/task_switch_time_tracker_unittest.cc",
     "metrics/user_metrics_recorder_unittest.cc",
@@ skipping 288 matching lines @@
     "//content/public/app:both",
     "//device/bluetooth",
   ]
 
   data_deps = [
     "//ash/strings:ash_test_strings",
     "//ash/resources:ash_test_resources_with_content_100_percent",
     "//ash/resources:ash_test_resources_200_percent",
   ]
 }