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

services/ui/ws/window_server.cc

Index: services/ui/ws/window_server.cc
diff --git a/services/ui/ws/window_server.cc b/services/ui/ws/window_server.cc
index f1b282c9b3486c68d3ef50ca7f2b789855611d28..bdbd7a5a0147947f83b532e9910863ed6a9304bc 100644
--- a/services/ui/ws/window_server.cc
+++ b/services/ui/ws/window_server.cc
@@ -111,6 +111,14 @@ void WindowServer::SetGpuHost(std::unique_ptr<GpuHost> gpu_host) {
   gpu_host_ = std::move(gpu_host);
 }
 
+scoped_refptr<base::SingleThreadTaskRunner>& WindowServer::GetResourceRunner() {
+  return delegate()->GetResourceRunner();
+}
+
+base::WeakPtr<ui::ImageCursors> WindowServer::GetImageCursorsWeakPtr() {
+  return delegate()->GetImageCursorsWeakPtr();
+}
+
 ServerWindow* WindowServer::CreateServerWindow(
     const WindowId& id,
     const std::map<std::string, std::vector<uint8_t>>& properties) {