Request the icon of a Web Notification in the renderer process.

chrome/browser/notifications/message_center_notification_manager.cc

 // Copyright (c) 2012 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/notifications/message_center_notification_manager.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
@@ skipping 335 matching lines @@
       observer_(observer) {
 }
 
 MessageCenterNotificationManager::ImageDownloads::~ImageDownloads() { }
 
 void MessageCenterNotificationManager::ImageDownloads::StartDownloads(
     const Notification& notification) {
   // In case all downloads are synchronous, assume a pending download.
   AddPendingDownload();
 
-  // Notification primary icon.
-  StartDownloadWithImage(
-      notification,
-      &notification.icon(),
-      notification.icon_url(),
-      base::Bind(&message_center::MessageCenter::SetNotificationIcon,
-                 base::Unretained(message_center_),
-                 notification.delegate_id()));
-
   // Notification image.
   StartDownloadWithImage(
       notification,
       NULL,
       notification.image_url(),
       base::Bind(&message_center::MessageCenter::SetNotificationImage,
                  base::Unretained(message_center_),
                  notification.delegate_id()));
 
   // Notification button icons.
@@ skipping 165 matching lines @@
        it != registry->enabled_extensions().end();
        ++it) {
     if ((*it->get()).permissions_data()->HasAPIPermission(
             extensions::APIPermission::ID::kNotificationProvider)) {
       extension_id = (*it->get()).id();
       return extension_id;
     }
   }
   return extension_id;
 }