Add WorkerScriptLoaded message to support attaching DevTools while starting ServiceWorker.

content/browser/service_worker/embedded_worker_instance.cc

 // Copyright 2013 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/browser/service_worker/embedded_worker_instance.h"
 
 #include "content/browser/service_worker/embedded_worker_registry.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
 #include "ipc/ipc_message.h"
 #include "url/gurl.h"
@@ skipping 81 matching lines @@
   DCHECK_EQ(process_id_, -1);
   DCHECK_EQ(worker_devtools_agent_route_id_, MSG_ROUTING_NONE);
   if (status == SERVICE_WORKER_OK) {
     process_id_ = process_id;
     worker_devtools_agent_route_id_ = worker_devtools_agent_route_id;
   } else {
     status_ = STOPPED;
   }
 }
 
+void EmbeddedWorkerInstance::OnScriptLoaded() {
+  // TODO(horo): Implement this.
+}
+
+void EmbeddedWorkerInstance::OnScriptLoadFailed() {
+}
+
 void EmbeddedWorkerInstance::OnStarted(int thread_id) {
   // Stop is requested before OnStarted is sent back from the worker.
   if (status_ == STOPPING)
     return;
   DCHECK(status_ == STARTING);
   status_ = RUNNING;
   thread_id_ = thread_id;
   FOR_EACH_OBSERVER(Listener, listener_list_, OnStarted());
 }
 
@@ skipping 62 matching lines @@
   // Sort descending by the reference count.
   std::sort(counted.begin(), counted.end(), SecondGreater());
 
   std::vector<int> result(counted.size());
   for (size_t i = 0; i < counted.size(); ++i)
     result[i] = counted[i].first;
   return result;
 }
 
 }  // namespace content