Store the service worker script and its imports on first load... kinda

content/browser/service_worker/service_worker_context_request_handler.h

 // 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.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_
 
 #include "content/browser/service_worker/service_worker_request_handler.h"
+#include "content/browser/service_worker/service_worker_version.h"
 
 namespace content {
 
 class ServiceWorkerVersion;
 
 // A request handler derivative used to handle requests from
 // service workers.
 class CONTENT_EXPORT ServiceWorkerContextRequestHandler
     : public ServiceWorkerRequestHandler {
  public:
@@ skipping 13 matching lines @@
   bool ShouldReadFromScriptCache(const GURL& url, int64* response_id_out);
 
   scoped_refptr<ServiceWorkerVersion> version_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerContextRequestHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_REQUEST_HANDLER_H_