Make registration.update() no longer force bypassing the HTTP cache

content/browser/service_worker/service_worker_dispatcher_host.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_dispatcher_host.h"
 
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 419 matching lines @@
   if (!registration->GetNewestVersion()) {
     // This can happen if update() is called during initial script evaluation.
     // Abort the following steps according to the spec.
     Send(new ServiceWorkerMsg_ServiceWorkerUpdateError(
         thread_id, request_id, WebServiceWorkerError::ErrorTypeState,
         base::ASCIIToUTF16(kServiceWorkerUpdateErrorPrefix) +
             base::ASCIIToUTF16(kInvalidStateErrorMessage)));
     return;
   }
 
-  // The spec says, "update() pings the server for an updated version of this
-  // script without consulting caches", so set |force_bypass_cache| to true.
   GetContext()->UpdateServiceWorker(
-      registration, true /* force_bypass_cache */,
+      registration, false /* force_bypass_cache */,
       false /* skip_script_comparison */, provider_host,
       base::Bind(&ServiceWorkerDispatcherHost::UpdateComplete, this, thread_id,
                  provider_id, request_id));
 }
 
 void ServiceWorkerDispatcherHost::OnUnregisterServiceWorker(
     int thread_id,
     int request_id,
     int provider_id,
     int64 registration_id) {
@@ skipping 840 matching lines @@
   if (!handle) {
     bad_message::ReceivedBadMessage(this,
                                     bad_message::SWDH_TERMINATE_BAD_HANDLE);
     return;
   }
   handle->version()->StopWorker(
       base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
 }
 
 }  // namespace content