Converts ash to use aura-mus

ash/mus/BUILD.gn

Index: ash/mus/BUILD.gn
diff --git a/ash/mus/BUILD.gn b/ash/mus/BUILD.gn
index 3b15cf3670dcb95255e7c4ab72b6119a459f8cb7..19b35d6154068724ed7846f25848772f21f89885 100644
--- a/ash/mus/BUILD.gn
+++ b/ash/mus/BUILD.gn
@@ -24,8 +24,6 @@ source_set("lib") {
     "app_list_presenter_mus.h",
     "bridge/immersive_handler_factory_mus.cc",
     "bridge/immersive_handler_factory_mus.h",
-    "bridge/mus_layout_manager_adapter.cc",
-    "bridge/mus_layout_manager_adapter.h",
     "bridge/wm_lookup_mus.cc",
     "bridge/wm_lookup_mus.h",
     "bridge/wm_root_window_controller_mus.cc",
@@ -51,20 +49,16 @@ source_set("lib") {
     "frame/detached_title_area_renderer_host.h",
     "keyboard_ui_mus.cc",
     "keyboard_ui_mus.h",
-    "layout_manager.cc",
-    "layout_manager.h",
     "move_event_handler.cc",
     "move_event_handler.h",
-    "native_widget_factory_mus.cc",
-    "native_widget_factory_mus.h",
     "non_client_frame_controller.cc",
     "non_client_frame_controller.h",
     "property_util.cc",
     "property_util.h",
     "root_window_controller.cc",
     "root_window_controller.h",
-    "screenlock_layout.cc",
-    "screenlock_layout.h",
+    "screen_mus.cc",
+    "screen_mus.h",
     "shadow.cc",
     "shadow.h",
     "shadow_controller.cc",
@@ -80,6 +74,8 @@ source_set("lib") {
     "window_manager_application.cc",
     "window_manager_application.h",
     "window_manager_observer.h",
+    "window_properties.cc",
+    "window_properties.h",
   ]
 
   defines = [ "NOTIMPLEMENTED_POLICY=5" ]
@@ -238,8 +234,8 @@ source_set("unittests") {
     "accelerators/accelerator_controller_unittest.cc",
     "app_launch_unittest.cc",
     "bridge/wm_shell_mus_test_api.h",
+    "bridge/wm_window_mus_test_api.cc",
     "bridge/wm_window_mus_test_api.h",
-    "layout_manager_unittest.cc",
     "root_window_controller_unittest.cc",
     "test/ash_test_impl_mus.cc",
     "test/ash_test_impl_mus.h",
@@ -270,6 +266,7 @@ source_set("unittests") {
     "//skia",
     "//testing/gtest",
     "//ui/aura",
+    "//ui/aura:test_support",
     "//ui/base",
     "//ui/base:test_support",
     "//ui/display",