Window ownership -> WindowTreeHost

ash/test/ui_controls_factory_ash.cc

Index: ash/test/ui_controls_factory_ash.cc
diff --git a/ash/test/ui_controls_factory_ash.cc b/ash/test/ui_controls_factory_ash.cc
index 0a31af5037403312fa80ea06c2f1c4e82fb8b6b9..0c3caa3e399d9ad0ca35b9084870b365a15f5145 100644
--- a/ash/test/ui_controls_factory_ash.cc
+++ b/ash/test/ui_controls_factory_ash.cc
@@ -35,7 +35,7 @@ UIControlsAura* GetUIControlsForRootWindow(aura::Window* root_window) {
       root_window->GetProperty(kUIControlsKey);
   if (!native_ui_control) {
     native_ui_control =
-        aura::test::CreateUIControlsAura(root_window->GetDispatcher());
+        aura::test::CreateUIControlsAura(root_window->GetHost()->dispatcher());
     // Pass the ownership to the |root_window|.
     root_window->SetProperty(kUIControlsKey, native_ui_control);
   }