[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 e8a62ad89d2e8117d898443d11a75404e96663fe..1f64bdb5cb3cb155e07368b04896ee90eb174675 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.cc
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.cc
@@ -295,7 +295,9 @@ 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});
@@ -478,6 +480,10 @@ void UiSceneManager::OnCloseButtonClicked() {
   browser_->ExitCct();
 }
 
+void UiSceneManager::OnUnsupportedMode() {
+  browser_->OnUnsupportedMode();
+}
+
 int UiSceneManager::AllocateId() {
   return next_available_id_++;
 }