[vr] Bail on unhandled code points.

chrome/browser/android/vr_shell/ui_scene_manager.cc

Index: chrome/browser/android/vr_shell/ui_scene_manager.cc
diff --git a/chrome/browser/android/vr_shell/ui_scene_manager.cc b/chrome/browser/android/vr_shell/ui_scene_manager.cc
index e60e72836692f68ec760833d0e552f9181ca2877..d4d41397d93de7a4e319c7143fbf715fa514b7f6 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.cc
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.cc
@@ -271,7 +271,9 @@ void UiSceneManager::CreateBackground() {
 
 void UiSceneManager::CreateUrlBar() {
   // TODO(cjgrant): Incorporate final size and position.
-  auto url_bar = base::MakeUnique<UrlBar>(512);
+  auto url_bar = base::MakeUnique<UrlBar>(
+      512,
+      base::Bind(&UiSceneManager::OnUnsupportedMode, base::Unretained(this)));
   url_bar->set_debug_id(kUrlBar);
   url_bar->set_id(AllocateId());
   url_bar->set_translation({0, kUrlBarVerticalOffset, -kUrlBarDistance});
@@ -449,6 +451,10 @@ void UiSceneManager::OnCloseButtonClicked() {
   browser_->ExitCct();
 }
 
+void UiSceneManager::OnUnsupportedMode(UiUnsupportedMode mode) {
+  browser_->OnUnsupportedMode(mode);
+}
+
 int UiSceneManager::AllocateId() {
   return next_available_id_++;
 }