Network connectivity errors handling (incl. CP) for enrollment flow

chrome/browser/chromeos/login/ui/webui_login_view.cc

Index: chrome/browser/chromeos/login/ui/webui_login_view.cc
diff --git a/chrome/browser/chromeos/login/ui/webui_login_view.cc b/chrome/browser/chromeos/login/ui/webui_login_view.cc
index cdadcf225f7a530e33cee2b76bdc792289c5616d..f1533b52640eb08261a5ad371b863af233914d6d 100644
--- a/chrome/browser/chromeos/login/ui/webui_login_view.cc
+++ b/chrome/browser/chromeos/login/ui/webui_login_view.cc
@@ -311,6 +311,15 @@ void WebUILoginView::SetUIEnabled(bool enabled) {
   ash::Shell::GetInstance()->GetPrimarySystemTray()->SetEnabled(enabled);
 }
 
+void WebUILoginView::AddFrameObserver(FrameObserver* frame_observer) {
+  if (frame_observer && !frame_observer_list_.HasObserver(frame_observer))
+    frame_observer_list_.AddObserver(frame_observer);
+}
+
+void WebUILoginView::RemoveFrameObserver(FrameObserver* frame_observer) {
+  frame_observer_list_.RemoveObserver(frame_observer);
+}
+
 // WebUILoginView protected: ---------------------------------------------------
 
 void WebUILoginView::Layout() {
@@ -430,6 +439,15 @@ void WebUILoginView::DidFailProvisionalLoad(
     int error_code,
     const base::string16& error_description,
     content::RenderViewHost* render_view_host) {
+  FOR_EACH_OBSERVER(FrameObserver,
+                    frame_observer_list_,
+                    DidFailProvisionalLoad(frame_id,
+                                           frame_unique_name,
+                                           is_main_frame,
+                                           validated_url,
+                                           error_code,
+                                           error_description,
+                                           render_view_host));
   if (frame_unique_name != base::UTF8ToUTF16("gaia-frame"))
     return;