[ServiceWorker] Introduce isControlledByServiceWorker() in FrameLoaderClient and WebFrameClient

Source/web/FrameLoaderClientImpl.cpp

Index: Source/web/FrameLoaderClientImpl.cpp
diff --git a/Source/web/FrameLoaderClientImpl.cpp b/Source/web/FrameLoaderClientImpl.cpp
index aa63454adff9dfdd077e3273964c4e01b3d2e397..144dfd75a9d4fd607f3b643f2f2cab5f8e2e7d7f 100644
--- a/Source/web/FrameLoaderClientImpl.cpp
+++ b/Source/web/FrameLoaderClientImpl.cpp
@@ -809,6 +809,13 @@ PassOwnPtr<WebServiceWorkerProvider> FrameLoaderClientImpl::createServiceWorkerP
     return adoptPtr(m_webFrame->client()->createServiceWorkerProvider(m_webFrame));
 }
 
+bool FrameLoaderClientImpl::controlledByServiceWorker()
+{
+    if (!m_webFrame->client())
+        return false;
+    return m_webFrame->client()->controlledByServiceWorker();

[tkent, 2014/09/08 07:38:33]

nit:
    return m_webFrame->client() &&
m_webFrame->client()->controlledByServiceWorker();
is simpler.

[horo, 2014/09/08 08:19:42]

Done.

+}
+
 SharedWorkerRepositoryClient* FrameLoaderClientImpl::sharedWorkerRepositoryClient()
 {
     return m_webFrame->sharedWorkerRepositoryClient();