Refactor FileSystem

ppapi/proxy/ppb_file_system_proxy.h

-// Copyright (c) 2011 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 PPAPI_PROXY_PPB_FILE_SYSTEM_PROXY_H_
-#define PPAPI_PROXY_PPB_FILE_SYSTEM_PROXY_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "ppapi/c/pp_instance.h"
-#include "ppapi/c/pp_resource.h"
-#include "ppapi/c/pp_time.h"
-#include "ppapi/c/ppb_file_system.h"
-#include "ppapi/proxy/interface_proxy.h"
-#include "ppapi/proxy/proxy_completion_callback_factory.h"
-#include "ppapi/utility/completion_callback_factory.h"
-
-namespace ppapi {
-
-class HostResource;
-
-namespace proxy {
-
-class PPB_FileSystem_Proxy : public InterfaceProxy {
- public:
-  explicit PPB_FileSystem_Proxy(Dispatcher* dispatcher);
-  virtual ~PPB_FileSystem_Proxy();
-
-  static const Info* GetInfo();
-
-  static PP_Resource CreateProxyResource(PP_Instance instance,
-                                         PP_FileSystemType type);
-
-  // InterfaceProxy implementation.
-  virtual bool OnMessageReceived(const IPC::Message& msg);
-
-  static const ApiID kApiID = API_ID_PPB_FILE_SYSTEM;
-
- private:
-  // Message handlers.
-  void OnMsgCreate(PP_Instance instance,
-                   int type,
-                   ppapi::HostResource* result);
-  void OnMsgOpen(const ppapi::HostResource& filesystem,
-                 int64_t expected_size);
-
-  void OnMsgOpenComplete(const ppapi::HostResource& filesystem,
-                         int32_t result);
-
-  void OpenCompleteInHost(int32_t result,
-                          const ppapi::HostResource& host_resource);
-
-  ProxyCompletionCallbackFactory<PPB_FileSystem_Proxy> callback_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PPB_FileSystem_Proxy);
-};
-
-}  // namespace proxy
-}  // namespace ppapi
-
-#endif  // PPAPI_PROXY_PPB_FILE_SYSTEM_PROXY_H_