Remove the OnError method from notification delegates.

chrome/browser/chromeos/policy/consumer_enrollment_handler.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/policy/consumer_enrollment_handler.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 59 matching lines @@
  public:
   // |button_click_callback| is called when the button in the notification is
   // clicked.
   DesktopNotificationDelegate(const std::string& id,
                               const base::Closure& button_click_callback);
 
   // NotificationDelegate:
   virtual std::string id() const override;
   virtual void Display() override;
   virtual void ButtonClick(int button_index) override;
-  virtual void Error() override;
   virtual void Close(bool by_user) override;
   virtual void Click() override;
 
  private:
   virtual ~DesktopNotificationDelegate();
 
   std::string id_;
   base::Closure button_click_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotificationDelegate);
@@ skipping 12 matching lines @@
   return id_;
 }
 
 void DesktopNotificationDelegate::Display() {
 }
 
 void DesktopNotificationDelegate::ButtonClick(int button_index) {
   button_click_callback_.Run();
 }
 
-void DesktopNotificationDelegate::Error() {
-}
-
 void DesktopNotificationDelegate::Close(bool by_user) {
 }
 
 void DesktopNotificationDelegate::Click() {
 }
 
 }  // namespace
 
 namespace policy {
 
@@ skipping 232 matching lines @@
 void ConsumerEnrollmentHandler::TryEnrollmentAgain(Profile* profile) const {
   const GURL base_url(chrome::kChromeUISettingsURL);
   const GURL url = base_url.Resolve(kConsumerManagementOverlay);
 
   chrome::NavigateParams params(profile, url, ui::PAGE_TRANSITION_LINK);
   params.disposition = NEW_FOREGROUND_TAB;
   chrome::Navigate(&params);
 }
 
 }  // namespace policy