Don't stop ServiceWorker when DevTools is attached even if JS execution is failed.

content/browser/service_worker/service_worker_version.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_
 
 #include <stdint.h>
 
 #include <functional>
@@ skipping 651 matching lines @@
   std::unique_ptr<net::HttpResponseInfo> main_script_http_info_;
 
   // If not OK, the reason that StartWorker failed. Used for
   // running |start_callbacks_|.
   ServiceWorkerStatusCode start_worker_status_ = SERVICE_WORKER_OK;
 
   std::unique_ptr<PingController> ping_controller_;
   std::unique_ptr<Metrics> metrics_;
   const bool should_exclude_from_uma_ = false;
 
+  bool stop_when_devtools_detached_ = false;
+
   base::WeakPtrFactory<ServiceWorkerVersion> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerVersion);
 };
 
 template <typename Interface>
 base::WeakPtr<Interface> ServiceWorkerVersion::GetMojoServiceForRequest(
     int request_id) {
   DCHECK_EQ(RUNNING, running_status());
   PendingRequest<StatusCallback>* request = custom_requests_.Lookup(request_id);
@@ skipping 66 matching lines @@
 
   // At this point |this| can have been deleted, so don't do anything other
   // than returning.
 
   return true;
 }
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_VERSION_H_