Start using display.mojom.Display in mus+ash.

services/ui/ws/window_tree_client_unittest.cc

Index: services/ui/ws/window_tree_client_unittest.cc
diff --git a/services/ui/ws/window_tree_client_unittest.cc b/services/ui/ws/window_tree_client_unittest.cc
index 6e9ce1b37228000285864b19d5ab2a4e52ce99bb..eb9bea1358e4fcdac2eec9ff4f1fa144d4e2cad9 100644
--- a/services/ui/ws/window_tree_client_unittest.cc
+++ b/services/ui/ws/window_tree_client_unittest.cc
@@ -388,7 +388,7 @@ class TestWindowTreeClient : public mojom::WindowTreeClient,
 
   // mojom::WindowManager:
   void OnConnect(uint16_t client_id) override {}
-  void WmNewDisplayAdded(mojom::DisplayPtr display,
+  void WmNewDisplayAdded(const display::Display& display,
                          mojom::WindowDataPtr root_data,
                          bool drawn) override {
     NOTIMPLEMENTED();