ServiceWorker: Make ServiceWorkerStorage more self-defensive

content/browser/service_worker/service_worker_context_watcher.cc

 // Copyright 2015 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_context_watcher.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/containers/scoped_ptr_hash_map.h"
@@ skipping 43 matching lines @@
       base::Bind(&ServiceWorkerContextWatcher::StopOnIOThread, this));
 }
 
 void ServiceWorkerContextWatcher::GetStoredRegistrationsOnIOThread() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   context_->GetAllRegistrations(base::Bind(
       &ServiceWorkerContextWatcher::OnStoredRegistrationsOnIOThread, this));
 }
 
 void ServiceWorkerContextWatcher::OnStoredRegistrationsOnIOThread(
+    ServiceWorkerStatusCode status,
     const std::vector<ServiceWorkerRegistrationInfo>& stored_registrations) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   context_->AddObserver(this);
 
   base::ScopedPtrHashMap<int64_t, scoped_ptr<ServiceWorkerRegistrationInfo>>
       registration_info_map;
   for (const auto& registration : stored_registrations)
     StoreRegistrationInfo(registration, &registration_info_map);
   for (const auto& registration : context_->GetAllLiveRegistrationInfo())
     StoreRegistrationInfo(registration, &registration_info_map);
@@ skipping 213 matching lines @@
       context_->GetLiveRegistration(registration_id);
   if (!registration)
     return;
   std::vector<ServiceWorkerRegistrationInfo> registrations;
   registrations.push_back(registration->GetInfo());
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(registration_callback_, registrations));
 }
 
 }  // namespace content