[vr] Add incognito coloring

chrome/browser/android/vr_shell/ui_elements/url_bar.cc

Index: chrome/browser/android/vr_shell/ui_elements/url_bar.cc
diff --git a/chrome/browser/android/vr_shell/ui_elements/url_bar.cc b/chrome/browser/android/vr_shell/ui_elements/url_bar.cc
index 332d73b7a95068b8b90cd91db39e7b47e5f17b64..a8ffa3f39a5e4a423ca290c6f641df1611d51d8a 100644
--- a/chrome/browser/android/vr_shell/ui_elements/url_bar.cc
+++ b/chrome/browser/android/vr_shell/ui_elements/url_bar.cc
@@ -90,6 +90,10 @@ void UrlBar::SetBackButtonCallback(const base::Callback<void()>& callback) {
   back_button_callback_ = callback;
 }
 
+void UrlBar::SetIncognito(bool incognito) {
+  texture_->SetIncognito(incognito);
+}
+
 void UrlBar::OnStateUpdated(const gfx::PointF& position) {
   const bool hovered = texture_->HitsBackButton(position);
   const bool pressed = hovered ? down_ : false;