Wires up WindowTreeClient::SetDisplayRoot()

ui/aura/test/mus/window_tree_client_private.cc

Index: ui/aura/test/mus/window_tree_client_private.cc
diff --git a/ui/aura/test/mus/window_tree_client_private.cc b/ui/aura/test/mus/window_tree_client_private.cc
index da7ab00ebae8b28a720b8777db6bd419f37436f0..11d475986d844558be8146668afe17e87c84e70c 100644
--- a/ui/aura/test/mus/window_tree_client_private.cc
+++ b/ui/aura/test/mus/window_tree_client_private.cc
@@ -6,6 +6,7 @@
 
 #include "ui/aura/mus/window_port_mus.h"
 #include "ui/aura/mus/window_tree_client.h"
+#include "ui/aura/mus/window_tree_host_mus_init_params.h"
 #include "ui/aura/window.h"
 #include "ui/display/display.h"
 
@@ -86,6 +87,11 @@ void WindowTreeClientPrivate::CallOnConnect() {
   tree_client_impl_->OnConnect(client_id);
 }
 
+WindowTreeHostMusInitParams
+WindowTreeClientPrivate::CallCreateInitParamsForNewDisplay() {
+  return tree_client_impl_->CreateInitParamsForNewDisplay();
+}
+
 void WindowTreeClientPrivate::SetTreeAndClientId(
     ui::mojom::WindowTree* window_tree,
     ClientSpecificId client_id) {