[ServiceWorker] Introduce isControlledByServiceWorker() in FrameLoaderClient and WebFrameClient

Source/web/FrameLoaderClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple 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.
@@ skipping 791 matching lines @@
         m_webFrame->viewImpl()->willInsertBody(m_webFrame);
 }
 
 PassOwnPtr<WebServiceWorkerProvider> FrameLoaderClientImpl::createServiceWorkerProvider()
 {
     if (!m_webFrame->client())
         return nullptr;
     return adoptPtr(m_webFrame->client()->createServiceWorkerProvider(m_webFrame));
 }
 
+bool FrameLoaderClientImpl::isControlledByServiceWorker()
+{
+    return m_webFrame->client() && m_webFrame->client()->isControlledByServiceWorker();
+}
+
 SharedWorkerRepositoryClient* FrameLoaderClientImpl::sharedWorkerRepositoryClient()
 {
     return m_webFrame->sharedWorkerRepositoryClient();
 }
 
 PassOwnPtr<WebApplicationCacheHost> FrameLoaderClientImpl::createApplicationCacheHost(WebApplicationCacheHostClient* client)
 {
     if (!m_webFrame->client())
         return nullptr;
     return adoptPtr(m_webFrame->client()->createApplicationCacheHost(m_webFrame, client));
 }
 
 void FrameLoaderClientImpl::didStopAllLoaders()
 {
     if (m_webFrame->client())
         m_webFrame->client()->didAbortLoading(m_webFrame);
 }
 
 void FrameLoaderClientImpl::dispatchDidChangeManifest()
 {
     if (m_webFrame->client())
         m_webFrame->client()->didChangeManifest(m_webFrame);
 }
 
 } // namespace blink