Move Mus into chrome's process when running with --mus.

services/ui/ws/window_server_delegate.h

Index: services/ui/ws/window_server_delegate.h
diff --git a/services/ui/ws/window_server_delegate.h b/services/ui/ws/window_server_delegate.h
index 6588bec935eef63320cdf1d175b6eda811613e77..15398561b6c7ef3747efdf18b77749ede360a95d 100644
--- a/services/ui/ws/window_server_delegate.h
+++ b/services/ui/ws/window_server_delegate.h
@@ -23,6 +23,7 @@ class WindowTree;
 namespace ws {
 
 class Display;
+class ThreadedImageCursorsFactory;
 class WindowServer;
 class WindowTree;
 class WindowTreeBinding;
@@ -59,6 +60,8 @@ class WindowServerDelegate {
   virtual void OnWillCreateTreeForWindowManager(
       bool automatically_create_display_roots) = 0;
 
+  virtual ThreadedImageCursorsFactory* GetThreadedImageCursorsFactory() = 0;
+
  protected:
   virtual ~WindowServerDelegate() {}
 };