ServiceWorker: Bypass resolving a promise when ExecutionContext is gone

Source/modules/serviceworkers/ServiceWorkerClients.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/serviceworkers/ServiceWorkerClients.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "modules/serviceworkers/Client.h"
@@ skipping 12 matching lines @@
         typedef blink::WebServiceWorkerClientsInfo WebType;
         static WillBeHeapVector<RefPtrWillBeMember<Client> > from(ScriptPromiseResolver*, WebType* webClientsRaw)
         {
             OwnPtr<WebType> webClients = adoptPtr(webClientsRaw);
             WillBeHeapVector<RefPtrWillBeMember<Client> > clients;
             for (size_t i = 0; i < webClients->clientIDs.size(); ++i) {
                 clients.append(Client::create(webClients->clientIDs[i]));
             }
             return clients;
         }
+        static void dispose(WebType* webClientsRaw)
+        {
+            delete webClientsRaw;
+        }
 
     private:
         WTF_MAKE_NONCOPYABLE(ClientArray);
         ClientArray() WTF_DELETED_FUNCTION;
     };
 
 } // namespace
 
 PassRefPtrWillBeRawPtr<ServiceWorkerClients> ServiceWorkerClients::create()
 {
     return adoptRefWillBeNoop(new ServiceWorkerClients());
 }
 
 ServiceWorkerClients::ServiceWorkerClients()
 {
     ScriptWrappable::init(this);
 }
 
 DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ServiceWorkerClients);
 
 ScriptPromise ServiceWorkerClients::getServiced(ScriptState* scriptState)
 {
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ServiceWorkerGlobalScopeClient::from(scriptState->executionContext())->getClients(new CallbackPromiseAdapter<ClientArray, ServiceWorkerError>(resolver));
     return resolver->promise();
 }
 
 } // namespace WebCore