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

content/browser/service_worker/service_worker_write_to_cache_job.h

Index: content/browser/service_worker/service_worker_write_to_cache_job.h
diff --git a/content/browser/service_worker/service_worker_write_to_cache_job.h b/content/browser/service_worker/service_worker_write_to_cache_job.h
new file mode 100644
index 0000000000000000000000000000000000000000..410aa2d4cb43e22621099b8010d43557ce0e0e8c
--- /dev/null
+++ b/content/browser/service_worker/service_worker_write_to_cache_job.h
@@ -0,0 +1,115 @@
+// 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_WRITE_TO_CACHE_JOB_
+#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_WRITE_TO_CACHE_JOB_
+
+#include "base/memory/weak_ptr.h"
+#include "content/browser/service_worker/service_worker_disk_cache.h"
+#include "content/browser/service_worker/service_worker_version.h"
+#include "content/common/content_export.h"
+#include "content/common/service_worker/service_worker_status_code.h"
+#include "content/common/service_worker/service_worker_types.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_job.h"
+
+namespace content {
+
+class ServiceWorkerContextCore;
+class ServiceWorkerResponseWriter;
+class ServiceWorkerVersions;
+
+// A URLRequestJob derivative used to cache the main script
+// and its imports during the initial install of a new version.
+// Another separate URLRequest is started which will perform
+// a network fetch. The response produced for that separate
+// request is written to the service worker script cache and piped
+// to the consumer of the ServiceWorkerWriteToCacheJob for delivery
+// to the renderer process housing the worker.
+class CONTENT_EXPORT ServiceWorkerWriteToCacheJob
+    : public net::URLRequestJob,
+      public net::URLRequest::Delegate {
+ public:
+  ServiceWorkerWriteToCacheJob(
+      net::URLRequest* request,
+      net::NetworkDelegate* network_delegate,
+      base::WeakPtr<ServiceWorkerContextCore> context,
+      ServiceWorkerVersion* version,
+      int64 response_id);
+
+ private:
+  virtual ~ServiceWorkerWriteToCacheJob();
+
+  // net::URLRequestJob overrides
+  virtual void Start() OVERRIDE;
+  virtual void Kill() OVERRIDE;
+  virtual net::LoadState GetLoadState() const OVERRIDE;
+  virtual bool GetCharset(std::string* charset) OVERRIDE;
+  virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
+  virtual void GetResponseInfo(net::HttpResponseInfo* info) OVERRIDE;
+  virtual int GetResponseCode() const OVERRIDE;
+  virtual void SetExtraRequestHeaders(
+      const net::HttpRequestHeaders& headers) OVERRIDE;
+  virtual bool ReadRawData(net::IOBuffer* buf,
+                           int buf_size,
+                           int *bytes_read) OVERRIDE;
+
+  const net::HttpResponseInfo* http_info() const;
+
+  // Methods to drive the net request forward and
+  // write data to the disk cache.
+  void InitNetRequest();
+  void StartNetRequest();
+  net::URLRequestStatus ReadNetData(
+      net::IOBuffer* buf,
+      int buf_size,
+      int *bytes_read);
+  void WriteHeadersToCache();
+  void OnWriteHeadersComplete(int result);
+  void WriteDataToCache(int bytes_to_write);
+  void OnWriteDataComplete(int result);
+
+  // net::URLRequest::Delegate overrides that observe the net request.
+  virtual void OnReceivedRedirect(
+      net::URLRequest* request,
+      const GURL& new_url,
+      bool* defer_redirect) OVERRIDE;
+  virtual void OnAuthRequired(
+      net::URLRequest* request,
+      net::AuthChallengeInfo* auth_info) OVERRIDE;
+  virtual void OnCertificateRequested(
+      net::URLRequest* request,
+      net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
+  virtual void OnSSLCertificateError(
+      net::URLRequest* request,
+      const net::SSLInfo& ssl_info,
+      bool fatal) OVERRIDE;
+  virtual void OnBeforeNetworkStart(
+      net::URLRequest* request,
+      bool* defer) OVERRIDE;
+  virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
+  virtual void OnReadCompleted(
+      net::URLRequest* request,
+      int bytes_read) OVERRIDE;
+
+  void AsyncNotifyDoneHelper(const net::URLRequestStatus& status);
+
+  scoped_refptr<net::IOBuffer> io_buffer_;
+  scoped_refptr<HttpResponseInfoIOBuffer> info_buffer_;
+  base::WeakPtr<ServiceWorkerContextCore> context_;
+  int64 response_id_;
+  scoped_ptr<net::URLRequest> net_request_;
+  scoped_ptr<net::HttpResponseInfo> http_info_;
+  scoped_ptr<ServiceWorkerResponseWriter> writer_;
+  scoped_refptr<ServiceWorkerVersion> version_;
+  bool has_been_killed_;
+  bool is_main_script_;

[nhiroki, 2014/05/15 23:30:08]

This does not seem to be used in this CL. Can you remove this?

[michaeln, 2014/05/15 23:54:30]

Done, thnx

+  base::WeakPtrFactory<ServiceWorkerWriteToCacheJob> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ServiceWorkerWriteToCacheJob);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_WRITE_TO_CACHE_JOB_