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

chrome/browser/notifications/desktop_notification_service.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/desktop_notification_service.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 146 matching lines @@
     content::RenderFrameHost* render_frame_host,
     scoped_ptr<content::DesktopNotificationDelegate> delegate,
     base::Closure* cancel_callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   const GURL& origin = params.origin;
   NotificationObjectProxy* proxy =
       new NotificationObjectProxy(render_frame_host, delegate.Pass());
 
   base::string16 display_source = DisplayNameForOriginInProcessId(
       origin, render_frame_host->GetProcess()->GetID());
-  Notification notification(origin, params.icon_url, params.title,
-      params.body, params.direction, display_source, params.replace_id,
-      proxy);
+
+  // TODO(peter): Icons for Web Notifications are currently always requested for
+  // 1x scale, whereas the displays on which they can be displayed can have a
+  // different pixel density. Be smarter about this when the API gets updated
+  // with a way for developers to specify images of different resolutions.
+  Notification notification(origin, params.title, params.body,
+      gfx::Image::CreateFrom1xBitmap(params.icon),
+      display_source, params.replace_id, proxy);
 
   // The webkit notification doesn't timeout.
   notification.set_never_timeout(true);
 
   g_browser_process->notification_ui_manager()->Add(notification, profile_);
   if (cancel_callback)
     *cancel_callback =
         base::Bind(&CancelNotification,
                    proxy->id(),
                    NotificationUIManager::GetProfileID(profile_));
@@ skipping 169 matching lines @@
   // Tell the IO thread that this extension's permission for notifications
   // has changed.
   extensions::InfoMap* extension_info_map =
       extensions::ExtensionSystem::Get(profile_)->info_map();
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&extensions::InfoMap::SetNotificationsDisabled,
                  extension_info_map, notifier_id.id, !enabled));
 #endif
 }