Make ServiceWorker an ActiveDOMObject

Source/modules/serviceworkers/ServiceWorker.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 49 matching lines @@
 
     virtual ScriptValue call(ScriptValue value) OVERRIDE
     {
         m_observer->onPromiseResolved();
         return value;
     }
 
     RefPtr<ServiceWorker> m_observer;
 };
 
+bool ServiceWorker::hasPendingActivity() const
+{
+    if (m_contextStopped)
+        return false;
+    return m_outerWorker->state() != blink::WebServiceWorkerStateDeactivated;
+}
+
+void ServiceWorker::stop()
+{
+    m_contextStopped = true;

[dominicc (has gone to gerrit), 2014/06/12 22:23:38]

Would it make sense to tie m_contextStopped and m_isPromisePending into one
"state"? WDYT?

[falken, 2014/06/13 19:22:59]

Hmm, right it would be good to make the possible combinations of the states
explicit, or disallow combinations. I've made an m_proxyState.

+}
+
 const AtomicString& ServiceWorker::interfaceName() const
 {
     return EventTargetNames::ServiceWorker;
 }
 
 void ServiceWorker::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, ExceptionState& exceptionState)
 {
     // Disentangle the port in preparation for sending it to the remote context.
     OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, exceptionState);
     if (exceptionState.hadException())
@@ skipping 101 matching lines @@
     RefPtr<ServiceWorker> worker = adoptRef(new ServiceWorker(executionContext, outerWorker));
     worker->suspendIfNeeded();
     return worker.release();
 }
 
 ServiceWorker::ServiceWorker(ExecutionContext* executionContext, PassOwnPtr<blink::WebServiceWorker> worker)
     : AbstractWorker(executionContext)
     , WebServiceWorkerProxy(this)
     , m_outerWorker(worker)
     , m_isPromisePending(false)
+    , m_contextStopped(false)
 {
     ScriptWrappable::init(this);
     ASSERT(m_outerWorker);
     m_outerWorker->setProxy(this);
 }
 
 } // namespace WebCore