Move initialization of ChromeURLRequestContexts to the IO thread.

chrome/common/appcache/appcache_dispatcher_host.h

 // Copyright (c) 2009 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 CHROME_COMMON_APPCACHE_APPCACHE_DISPATCHER_HOST_H_
 #define CHROME_COMMON_APPCACHE_APPCACHE_DISPATCHER_HOST_H_
 
 #include <vector>
 
 #include "base/process.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "chrome/common/appcache/appcache_frontend_proxy.h"
 #include "ipc/ipc_message.h"
 #include "webkit/appcache/appcache_backend_impl.h"
 
 class ChromeAppCacheService;
+class URLRequestContextGetter;
 
 // Handles appcache related messages sent to the main browser process from
 // its child processes. There is a distinct host for each child process.
 // Messages are handled on the IO thread. The ResourceMessageFilter creates
 // an instance and delegates calls to it.
 class AppCacheDispatcherHost {
  public:
-  explicit AppCacheDispatcherHost(ChromeAppCacheService* appcache_service);
+  explicit AppCacheDispatcherHost(
+      URLRequestContextGetter* request_context_getter);
 
   void Initialize(IPC::Message::Sender* sender, int process_id,
                   base::ProcessHandle process_handle);
   bool OnMessageReceived(const IPC::Message& msg, bool* msg_is_ok);
 
   int process_id() const { return backend_impl_.process_id(); }
 
   // Note: needed to satisfy ipc message dispatching macros.
   bool Send(IPC::Message* msg) {
     return frontend_proxy_.sender()->Send(msg);
@@ skipping 13 matching lines @@
   void OnSwapCache(int host_id, IPC::Message* reply_msg);
 
   void GetStatusCallback(appcache::Status status, void* param);
   void StartUpdateCallback(bool result, void* param);
   void SwapCacheCallback(bool result, void* param);
 
   void ReceivedBadMessage(uint16 msg_type);
 
   AppCacheFrontendProxy frontend_proxy_;
   appcache::AppCacheBackendImpl backend_impl_;
+
+  // Temporary until Initializer() can be called from the IO thread,
+  // which will extract the AppCacheService from the URLRequestContext.
+  scoped_refptr<URLRequestContextGetter> request_context_getter_;
+
+  // This is only valid once Initialize() has been called.
   scoped_refptr<ChromeAppCacheService> appcache_service_;
+
   scoped_ptr<appcache::GetStatusCallback> get_status_callback_;
   scoped_ptr<appcache::StartUpdateCallback> start_update_callback_;
   scoped_ptr<appcache::SwapCacheCallback> swap_cache_callback_;
   base::ProcessHandle process_handle_;
   scoped_ptr<IPC::Message> pending_reply_msg_;
 
   DISALLOW_COPY_AND_ASSIGN(AppCacheDispatcherHost);
 };
 
 #endif  // CHROME_COMMON_APPCACHE_APPCACHE_DISPATCHER_HOST_H_