Stop Service Workers that execute JavaScript for too long.

content/renderer/service_worker/service_worker_script_context.cc

 // 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 "content/renderer/service_worker/service_worker_script_context.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/trace_event/trace_event.h"
 #include "content/child/notifications/notification_data_conversions.h"
@@ skipping 109 matching lines @@
                         OnDidGetClientDocuments)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_OpenWindowResponse,
                         OnOpenWindowResponse)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_OpenWindowError,
                         OnOpenWindowError)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_FocusClientResponse,
                         OnFocusClientResponse)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_DidSkipWaiting, OnDidSkipWaiting)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_DidClaimClients, OnDidClaimClients)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ClaimClientsError, OnClaimClientsError)
+    IPC_MESSAGE_HANDLER(ServiceWorkerMsg_Ping, OnPing);
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   // TODO(gavinp): Would it be preferable to put an AddListener() method to
   // EmbeddedWorkerContextClient?
   if (!handled)
     handled = cache_storage_dispatcher_->OnMessageReceived(message);
 
   DCHECK(handled);
 }
@@ skipping 424 matching lines @@
   if (!callbacks) {
     NOTREACHED() << "Got stray response: " << request_id;
     return;
   }
   scoped_ptr<blink::WebServiceWorkerError> error(
       new blink::WebServiceWorkerError(error_type, message));
   callbacks->onError(error.release());
   pending_claim_clients_callbacks_.Remove(request_id);
 }
 
+void ServiceWorkerScriptContext::OnPing() {
+  Send(new ServiceWorkerHostMsg_Pong(GetRoutingID()));
+}
+
 }  // namespace content