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

services/ui/ws/window_server.h

Index: services/ui/ws/window_server.h
diff --git a/services/ui/ws/window_server.h b/services/ui/ws/window_server.h
index df851a4d5bd5d792d3759e8fbcfe339c5e5ebaf5..ffd5eee2d5f7570cd506101dbf3c48a99dc62d07 100644
--- a/services/ui/ws/window_server.h
+++ b/services/ui/ws/window_server.h
@@ -29,6 +29,9 @@
 #include "services/ui/ws/window_manager_window_tree_factory_set.h"
 
 namespace ui {
+
+class ImageCursors;
+
 namespace ws {
 
 class AccessPolicy;
@@ -53,7 +56,7 @@ class WindowServer : public ServerWindowDelegate,
                      public UserIdTrackerObserver,
                      public cc::mojom::FrameSinkManagerClient {
  public:
-  explicit WindowServer(WindowServerDelegate* delegate);
+  WindowServer(WindowServerDelegate* delegate);
   ~WindowServer() override;
 
   WindowServerDelegate* delegate() { return delegate_; }
@@ -81,6 +84,13 @@ class WindowServer : public ServerWindowDelegate,
 
   void SetGpuHost(std::unique_ptr<GpuHost> gpu_host);
 
+  // Returns a valid task runner which can be used to load resources.
+  scoped_refptr<base::SingleThreadTaskRunner>& GetResourceRunner();
+
+  // The returned weak pointer can be used to manipulate the cursor, and should
+  // only be dereferenced on the task runner returned by GetResourceRunner().
+  base::WeakPtr<ui::ImageCursors> GetImageCursorsWeakPtr();
+
   // Creates a new ServerWindow. The return value is owned by the caller, but
   // must be destroyed before WindowServer.
   ServerWindow* CreateServerWindow(