Split Dictionary's get and convert into DictionaryHelper.

Source/modules/notifications/Notification.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 #include "modules/notifications/NotificationController.h"
 
 namespace WebCore {
 
 Notification* Notification::create(ExecutionContext* context, const String& title, const Dictionary& options)
 {
     NotificationClient& client = NotificationController::clientFrom(context);
     Notification* notification = adoptRefCountedGarbageCollectedWillBeNoop(new Notification(title, context, &client));
 
     String argument;
-    if (options.get("body", argument))
+    if (DictionaryHelper::get(options, "body", argument))
         notification->setBody(argument);
-    if (options.get("tag", argument))
+    if (DictionaryHelper::get(options, "tag", argument))
         notification->setTag(argument);
-    if (options.get("lang", argument))
+    if (DictionaryHelper::get(options, "lang", argument))
         notification->setLang(argument);
-    if (options.get("dir", argument))
+    if (DictionaryHelper::get(options, "dir", argument))
         notification->setDir(argument);
-    if (options.get("icon", argument)) {
+    if (DictionaryHelper::get(options, "icon", argument)) {
         KURL iconUrl = argument.isEmpty() ? KURL() : context->completeURL(argument);
         if (!iconUrl.isEmpty() && iconUrl.isValid())
             notification->setIconUrl(iconUrl);
     }
 
     notification->suspendIfNeeded();
     return notification;
 }
 
 Notification::Notification(const String& title, ExecutionContext* context, NotificationClient* client)
@@ skipping 125 matching lines @@
     m_client = 0;
     m_state = Closed;
 }
 
 bool Notification::hasPendingActivity() const
 {
     return m_state == Showing || (m_asyncRunner && m_asyncRunner->isActive());
 }
 
 } // namespace WebCore