Removing redundant 'is_null' field in ServiceWorkerVersionInfo

content/browser/service_worker/service_worker_storage.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/service_worker_storage.h"
 
 #include <string>
 
 #include "base/bind_helpers.h"
 #include "base/debug/trace_event.h"
@@ skipping 936 matching lines @@
             context_->GetLiveVersion(it->version_id)) {
       if (it->is_active)
         info.active_version = version->GetInfo();
       else
         info.waiting_version = version->GetInfo();
       infos.push_back(info);
       continue;
     }
 
     if (it->is_active) {
-      info.active_version.is_null = false;
       info.active_version.status = ServiceWorkerVersion::ACTIVATED;
       info.active_version.version_id = it->version_id;
     } else {
-      info.waiting_version.is_null = false;
       info.waiting_version.status = ServiceWorkerVersion::INSTALLED;
       info.waiting_version.version_id = it->version_id;
     }
     infos.push_back(info);
   }
 
   // Add unstored registrations that are being installed.
   for (RegistrationRefsById::const_iterator it =
            installing_registrations_.begin();
        it != installing_registrations_.end(); ++it) {
@@ skipping 523 matching lines @@
     // Give up the corruption recovery until the browser restarts.
     LOG(ERROR) << "Failed to delete the diskcache.";
     callback.Run(SERVICE_WORKER_ERROR_FAILED);
     return;
   }
   DVLOG(1) << "Deleted ServiceWorkerDiskCache successfully.";
   callback.Run(SERVICE_WORKER_OK);
 }
 
 }  // namespace content