Removing redundant 'is_null' field in ServiceWorkerVersionInfo

content/browser/service_worker/service_worker_info.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/browser/service_worker/service_worker_info.h"
 
 #include "content/common/service_worker/service_worker_types.h"
 #include "ipc/ipc_message.h"
 
 namespace content {
 
 ServiceWorkerVersionInfo::ServiceWorkerVersionInfo()
-    : is_null(true),
-      running_status(ServiceWorkerVersion::STOPPED),
+    : running_status(ServiceWorkerVersion::STOPPED),
       status(ServiceWorkerVersion::NEW),
       version_id(kInvalidServiceWorkerVersionId),
       process_id(-1),
       thread_id(-1),
       devtools_agent_route_id(MSG_ROUTING_NONE) {
 }
 
 ServiceWorkerVersionInfo::ServiceWorkerVersionInfo(
     ServiceWorkerVersion::RunningStatus running_status,
     ServiceWorkerVersion::Status status,
     const GURL& script_url,
     int64 version_id,
     int process_id,
     int thread_id,
     int devtools_agent_route_id)
-    : is_null(false),
-      running_status(running_status),
+    : running_status(running_status),
       status(status),
       script_url(script_url),
       version_id(version_id),
       process_id(process_id),
       thread_id(thread_id),
       devtools_agent_route_id(devtools_agent_route_id) {
 }
 
 ServiceWorkerVersionInfo::~ServiceWorkerVersionInfo() {}
 
 ServiceWorkerRegistrationInfo::ServiceWorkerRegistrationInfo() {}
 
 ServiceWorkerRegistrationInfo::ServiceWorkerRegistrationInfo(
     const GURL& pattern,
     int64 registration_id,
     const ServiceWorkerVersionInfo& active_version,
     const ServiceWorkerVersionInfo& waiting_version,
     const ServiceWorkerVersionInfo& installing_version)
     : pattern(pattern),
       registration_id(registration_id),
       active_version(active_version),
       waiting_version(waiting_version),
       installing_version(installing_version) {
 }
 
 ServiceWorkerRegistrationInfo::~ServiceWorkerRegistrationInfo() {}
 
 }  // namespace content