Use hi-resolution favicon variants if available.

chrome/browser/ui/views/ash/balloon_view_ash.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/ui/views/ash/balloon_view_ash.h"
 
 #include "ash/shell.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/web_notification/web_notification_tray.h"
 #include "base/logging.h"
@@ skipping 31 matching lines @@
               const std::string& notification_id,
               const GURL& icon_url)
       : content::WebContentsObserver(web_contents),
         request_id_(0),
         notification_id_(notification_id),
         icon_url_(icon_url) {
     Observe(web_contents);
     content::RenderViewHost* host = web_contents->GetRenderViewHost();
     request_id_ = FaviconUtil::DownloadFavicon(host,
                                                icon_url,
-                                               kNotificationIconImageSize);
+                                               std::vector<int>(1, kNotificationIconImageSize));
   }
 
   // content::WebContentsObserver override.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE {
     bool message_handled = false;   // Allow other handlers to receive these.
     IPC_BEGIN_MESSAGE_MAP(IconFetcher, message)
       IPC_MESSAGE_HANDLER(IconHostMsg_DidDownloadFavicon, OnDidDownloadFavicon)
       IPC_MESSAGE_UNHANDLED(message_handled = false)
     IPC_END_MESSAGE_MAP()
     return message_handled;
@@ skipping 93 matching lines @@
   ExtensionService* extension_service =
       balloon_->profile()->GetExtensionService();
   const GURL& origin = balloon_->notification().origin_url();
   const extensions::Extension* extension =
       extension_service->extensions()->GetExtensionOrAppByURL(
           ExtensionURLInfo(origin));
   if (extension)
     return extension->id();
   return std::string();
 }