Remove unnecessary image downloading handler of notifications.

chrome/browser/signin/signin_error_notifier_ash.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/signin/signin_error_notifier_ash.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/system/system_notifier.h"
 #include "base/logging.h"
@@ skipping 39 matching lines @@
                              Profile* profile);
 
   // NotificationDelegate:
   virtual void Display() override;
   virtual void Error() override;
   virtual void Close(bool by_user) override;
   virtual bool HasClickedListener() override;
   virtual void Click() override;
   virtual void ButtonClick(int button_index) override;
   virtual std::string id() const override;
-  virtual content::WebContents* GetWebContents() const override;
 
  protected:
   virtual ~SigninNotificationDelegate();
 
  private:
   void FixSignIn();
 
   // Unique id of the notification.
   const std::string id_;
 
@@ skipping 30 matching lines @@
 }
 
 void SigninNotificationDelegate::ButtonClick(int button_index) {
   FixSignIn();
 }
 
 std::string SigninNotificationDelegate::id() const {
   return id_;
 }
 
-content::WebContents* SigninNotificationDelegate::GetWebContents() const {
-  return NULL;
-}
-
 void SigninNotificationDelegate::FixSignIn() {
 #if defined(OS_CHROMEOS)
   chrome::AttemptUserExit();
 #else
   LoginUIService* login_ui = LoginUIServiceFactory::GetForProfile(profile_);
   if (login_ui->current_login_ui()) {
     login_ui->current_login_ui()->FocusUI();
     return;
   }
 
@@ skipping 113 matching lines @@
       return l10n_util::GetStringUTF16(
           IDS_SYNC_UNAVAILABLE_ERROR_BUBBLE_VIEW_MESSAGE);
       break;
 
     // Generic message for "other" errors.
     default:
       return l10n_util::GetStringUTF16(
           IDS_SYNC_OTHER_SIGN_IN_ERROR_BUBBLE_VIEW_MESSAGE);
   }
 }