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

services/ui/ws/test_utils.cc

Index: services/ui/ws/test_utils.cc
diff --git a/services/ui/ws/test_utils.cc b/services/ui/ws/test_utils.cc
index 0a9649788e34616f782f2c1a2228aea7c2aa821f..54b775ce5a8d327628a0999a0321287781619bcf 100644
--- a/services/ui/ws/test_utils.cc
+++ b/services/ui/ws/test_utils.cc
@@ -17,6 +17,7 @@
 #include "services/ui/ws/display_manager.h"
 #include "services/ui/ws/frame_sink_manager_client_binding.h"
 #include "services/ui/ws/gpu_host.h"
+#include "services/ui/ws/threaded_image_cursors.h"
 #include "services/ui/ws/window_manager_access_policy.h"
 #include "services/ui/ws/window_manager_window_tree_factory.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -546,6 +547,18 @@ void TestWindowServerDelegate::OnWillCreateTreeForWindowManager(
                                          : DisplayCreationConfig::MANUAL);
 }
 
+scoped_refptr<base::SingleThreadTaskRunner>&
+TestWindowServerDelegate::GetResourceRunner() {
+  return resource_runner_;
+}
+
+base::WeakPtr<ui::ImageCursors>
+TestWindowServerDelegate::GetImageCursorsWeakPtr() {
+  if (!image_cursors_)
+    image_cursors_ = base::MakeUnique<ui::ImageCursors>();
+  return image_cursors_->GetWeakPtr();
+}
+
 // WindowServerTestHelper  ---------------------------------------------------
 
 WindowServerTestHelper::WindowServerTestHelper()