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

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 294 matching lines @@
       tray->GetWidget()->Hide();
     }
   }
 }
 
 void WebUILoginView::SetUIEnabled(bool enabled) {
   forward_keyboard_event_ = enabled;
   ash::Shell::GetInstance()->GetPrimarySystemTray()->SetEnabled(enabled);
 }
 
+void WebUILoginView::AddFrameObserver(FrameObserver* frame_observer) {
+  DCHECK(frame_observer);
+  DCHECK(!frame_observer_list_.HasObserver(frame_observer));
+  frame_observer_list_.AddObserver(frame_observer);
+}
+
+void WebUILoginView::RemoveFrameObserver(FrameObserver* frame_observer) {
+  DCHECK(frame_observer);
+  DCHECK(frame_observer_list_.HasObserver(frame_observer));
+  frame_observer_list_.RemoveObserver(frame_observer);
+}
+
 // WebUILoginView protected: ---------------------------------------------------
 
 void WebUILoginView::Layout() {
   DCHECK(webui_login_);
   webui_login_->SetBoundsRect(bounds());
 
   FOR_EACH_OBSERVER(web_modal::ModalDialogHostObserver,
                     observer_list_,
                     OnPositionRequiresUpdate());
 }
@@ skipping 97 matching lines @@
       event.type == blink::WebGestureEvent::GesturePinchUpdate ||
       event.type == blink::WebGestureEvent::GesturePinchEnd;
 }
 
 void WebUILoginView::DidFailProvisionalLoad(
     content::RenderFrameHost* render_frame_host,
     bool is_main_frame,
     const GURL& validated_url,
     int error_code,
     const base::string16& error_description) {
+  FOR_EACH_OBSERVER(FrameObserver,
+                    frame_observer_list_,
+                    OnFrameError(render_frame_host->GetFrameName()));
   if (render_frame_host->GetFrameName() != "gaia-frame")
     return;
 
   GetWebUI()->CallJavascriptFunction("login.GaiaSigninScreen.onFrameError",
                                      base::FundamentalValue(-error_code),
                                      base::StringValue(validated_url.spec()));
 }
 
 void WebUILoginView::OnLoginPromptVisible() {
   // If we're hidden than will generate this signal once we're shown.
@@ skipping 12 matching lines @@
   webui_visible_ = true;
 }
 
 void WebUILoginView::ReturnFocus(bool reverse) {
   // Return the focus to the web contents.
   webui_login_->web_contents()->FocusThroughTabTraversal(reverse);
   GetWidget()->Activate();
 }
 
 }  // namespace chromeos