After 24 hours, bust the browser cache when checking for ServiceWorker updates

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/file_util.h"
@@ skipping 415 matching lines @@
     RunSoon(FROM_HERE, base::Bind(callback, SERVICE_WORKER_ERROR_FAILED));
     return;
   }
 
   ServiceWorkerDatabase::RegistrationData data;
   data.registration_id = registration->id();
   data.scope = registration->pattern();
   data.script = registration->script_url();
   data.has_fetch_handler = true;
   data.version_id = version->version_id();
-  data.last_update_check = base::Time::Now();
+  data.last_update_check = registration->last_update_check();
   data.is_active = (version == registration->active_version());
 
   ResourceList resources;
   version->script_cache_map()->GetResources(&resources);
 
   if (!has_checked_for_stale_resources_)
     DeleteStaleResources();
 
   database_task_runner_->PostTask(
       FROM_HERE,
@@ skipping 24 matching lines @@
       FROM_HERE,
       base::Bind(&ServiceWorkerDatabase::UpdateVersionToActive,
                  base::Unretained(database_.get()),
                  registration->id(),
                  registration->script_url().GetOrigin()),
       base::Bind(&ServiceWorkerStorage::DidUpdateToActiveState,
                  weak_factory_.GetWeakPtr(),
                  callback));
 }
 
+void ServiceWorkerStorage::UpdateLastUpdateCheckTime(
+    ServiceWorkerRegistration* registration) {
+  DCHECK(registration);
+
+  DCHECK(state_ == INITIALIZED || state_ == DISABLED) << state_;
+  if (IsDisabled() || !context_)
+    return;
+
+  database_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(
+          base::IgnoreResult(&ServiceWorkerDatabase::UpdateLastCheckTime),
+          base::Unretained(database_.get()),
+          registration->id(),
+          registration->script_url().GetOrigin(),
+          registration->last_update_check()));
+}
+
 void ServiceWorkerStorage::DeleteRegistration(
     int64 registration_id,
     const GURL& origin,
     const StatusCallback& callback) {
   DCHECK(state_ == INITIALIZED || state_ == DISABLED) << state_;
   if (IsDisabled() || !context_) {
     RunSoon(FROM_HERE, base::Bind(callback, SERVICE_WORKER_ERROR_FAILED));
     return;
   }
 
@@ skipping 456 matching lines @@
 ServiceWorkerStorage::GetOrCreateRegistration(
     const ServiceWorkerDatabase::RegistrationData& data,
     const ResourceList& resources) {
   scoped_refptr<ServiceWorkerRegistration> registration =
       context_->GetLiveRegistration(data.registration_id);
   if (registration)
     return registration;
 
   registration = new ServiceWorkerRegistration(
       data.scope, data.script, data.registration_id, context_);
+  registration->set_last_update_check(data.last_update_check);
   if (pending_deletions_.find(data.registration_id) !=
       pending_deletions_.end()) {
     registration->set_is_deleted(true);
   }
   scoped_refptr<ServiceWorkerVersion> version =
       context_->GetLiveVersion(data.version_id);
   if (!version) {
     version = new ServiceWorkerVersion(registration, data.version_id, context_);
     version->SetStatus(data.is_active ?
         ServiceWorkerVersion::ACTIVATED : ServiceWorkerVersion::INSTALLED);
@@ skipping 411 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