Demonstrate external-window-mode in mus-demo

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 cb4d7e45d86cbcc18e698e8571dae72119076495..a4f2786caaa8cf219edfdfdc99d75be33654301d 100644
--- a/services/ui/ws/test_utils.cc
+++ b/services/ui/ws/test_utils.cc
@@ -128,7 +128,8 @@ void TestPlatformScreen::RemoveDisplay(int64_t id) {
   display_ids_.erase(id);
 }
 
-void TestPlatformScreen::Init(display::PlatformScreenDelegate* delegate) {
+void TestPlatformScreen::Init(display::PlatformScreenDelegate* delegate,
+                              bool external_window_mode) {
   // Reset
   delegate_ = delegate;
   display_ids_.clear();
@@ -450,7 +451,8 @@ mojom::WindowTreeClient* TestWindowTreeBinding::CreateClientForShutdown() {
 TestWindowServerDelegate::TestWindowServerDelegate() {}
 TestWindowServerDelegate::~TestWindowServerDelegate() {}
 
-void TestWindowServerDelegate::StartDisplayInit() {}
+void TestWindowServerDelegate::StartDisplayInit(bool window_manager_connected) {
+}
 
 void TestWindowServerDelegate::OnNoMoreDisplays() {
   got_on_no_more_displays_ = true;