ServiceWorker: Add support for .skipWaiting and controllerchange event(1/3)

Source/web/ServiceWorkerGlobalScopeClientImpl.cpp

Index: Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
index 5ff015f6d7ff398edb153f7d888ac594d20d8db3..edc43cc2f553e6bcb2b955a5444a36016f4ed070 100644
--- a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
@@ -103,6 +103,11 @@ void ServiceWorkerGlobalScopeClientImpl::postMessageToClient(int clientID, const
     m_client.postMessageToClient(clientID, message, webChannels.leakPtr());
 }
 
+void ServiceWorkerGlobalScopeClientImpl::skipWaiting(WebServiceWorkerSkipWaitingCallbacks* callbacks)
+{
+    m_client.skipWaiting(callbacks);
+}
+
 ServiceWorkerGlobalScopeClientImpl::ServiceWorkerGlobalScopeClientImpl(WebServiceWorkerContextClient& client)
     : m_client(client)
 {