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

services/ui/ws/test_utils.h

Index: services/ui/ws/test_utils.h
diff --git a/services/ui/ws/test_utils.h b/services/ui/ws/test_utils.h
index 1734541e7a5edbe2bab807608b77a2eb959e994f..ff63b0a10476cdf347c06925f2622f36f243f217 100644
--- a/services/ui/ws/test_utils.h
+++ b/services/ui/ws/test_utils.h
@@ -607,6 +607,8 @@ class TestWindowServerDelegate : public WindowServerDelegate {
   bool IsTestConfig() const override;
   void OnWillCreateTreeForWindowManager(
       bool automatically_create_display_roots) override;
+  scoped_refptr<base::SingleThreadTaskRunner>& GetResourceRunner() override;
+  base::WeakPtr<ui::ImageCursors> GetImageCursorsWeakPtr() override;
 
  private:
   WindowServer* window_server_ = nullptr;
@@ -614,6 +616,8 @@ class TestWindowServerDelegate : public WindowServerDelegate {
   // All TestWindowTreeBinding objects created via CreateWindowTreeBinding.
   // These are owned by the corresponding WindowTree.
   std::vector<TestWindowTreeBinding*> bindings_;
+  scoped_refptr<base::SingleThreadTaskRunner> resource_runner_ = nullptr;
+  std::unique_ptr<ui::ImageCursors> image_cursors_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowServerDelegate);
 };