Refactor the URLResponseInfo to use new design

ppapi/proxy/ppb_url_response_info_proxy.cc

-// Copyright (c) 2012 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 "ppapi/proxy/ppb_url_response_info_proxy.h"
-
-#include "ppapi/c/ppb_url_response_info.h"
-#include "ppapi/proxy/enter_proxy.h"
-#include "ppapi/proxy/host_dispatcher.h"
-#include "ppapi/proxy/plugin_dispatcher.h"
-#include "ppapi/proxy/ppapi_messages.h"
-#include "ppapi/proxy/ppb_file_ref_proxy.h"
-#include "ppapi/proxy/serialized_var.h"
-#include "ppapi/shared_impl/resource.h"
-#include "ppapi/thunk/ppb_url_response_info_api.h"
-#include "ppapi/thunk/thunk.h"
-
-using ppapi::thunk::PPB_URLResponseInfo_API;
-
-namespace ppapi {
-namespace proxy {
-
-// URLResponseInfo -------------------------------------------------------------
-
-class URLResponseInfo : public Resource, public PPB_URLResponseInfo_API {
- public:
-  URLResponseInfo(const HostResource& resource);
-  virtual ~URLResponseInfo();
-
-  // Resource override.
-  virtual PPB_URLResponseInfo_API* AsPPB_URLResponseInfo_API() OVERRIDE;
-
-  // PPB_URLResponseInfo_API implementation.
-  virtual PP_Var GetProperty(PP_URLResponseProperty property) OVERRIDE;
-  virtual PP_Resource GetBodyAsFileRef() OVERRIDE;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(URLResponseInfo);
-};
-
-URLResponseInfo::URLResponseInfo(const HostResource& resource)
-    : Resource(OBJECT_IS_PROXY, resource) {
-}
-
-URLResponseInfo::~URLResponseInfo() {
-}
-
-PPB_URLResponseInfo_API* URLResponseInfo::AsPPB_URLResponseInfo_API() {
-  return this;
-}
-
-PP_Var URLResponseInfo::GetProperty(PP_URLResponseProperty property) {
-  PluginDispatcher* dispatcher = PluginDispatcher::GetForResource(this);
-  ReceiveSerializedVarReturnValue result;
-  dispatcher->Send(new PpapiHostMsg_PPBURLResponseInfo_GetProperty(
-      API_ID_PPB_URL_RESPONSE_INFO, host_resource(), property, &result));
-  return result.Return(dispatcher);
-}
-
-PP_Resource URLResponseInfo::GetBodyAsFileRef() {
-  // This could be more efficient by having the host automatically send us the
-  // file ref when the request is streaming to a file and it's in the state
-  // where the file is ready. This will prevent us from having to do this sync
-  // IPC here.
-  PPB_FileRef_CreateInfo create_info;
-  PluginDispatcher::GetForResource(this)->Send(
-      new PpapiHostMsg_PPBURLResponseInfo_GetBodyAsFileRef(
-          API_ID_PPB_URL_RESPONSE_INFO, host_resource(), &create_info));
-  return PPB_FileRef_Proxy::DeserializeFileRef(create_info);
-}
-
-// PPB_URLResponseInfo_Proxy ---------------------------------------------------
-
-PPB_URLResponseInfo_Proxy::PPB_URLResponseInfo_Proxy(Dispatcher* dispatcher)
-    : InterfaceProxy(dispatcher) {
-}
-
-PPB_URLResponseInfo_Proxy::~PPB_URLResponseInfo_Proxy() {
-}
-
-// static
-PP_Resource PPB_URLResponseInfo_Proxy::CreateResponseForResource(
-    const HostResource& resource) {
-  return (new URLResponseInfo(resource))->GetReference();
-}
-
-bool PPB_URLResponseInfo_Proxy::OnMessageReceived(const IPC::Message& msg) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(PPB_URLResponseInfo_Proxy, msg)
-    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBURLResponseInfo_GetProperty,
-                        OnMsgGetProperty)
-    IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBURLResponseInfo_GetBodyAsFileRef,
-                        OnMsgGetBodyAsFileRef)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  // TODO(brettw): handle bad messages.
-  return handled;
-}
-
-void PPB_URLResponseInfo_Proxy::OnMsgGetProperty(
-    const HostResource& response,
-    int32_t property,
-    SerializedVarReturnValue result) {
-  EnterHostFromHostResource<PPB_URLResponseInfo_API> enter(response);
-  PP_Var result_var = PP_MakeUndefined();
-  if (enter.succeeded()) {
-    result_var = enter.object()->GetProperty(
-        static_cast<PP_URLResponseProperty>(property));
-  }
-  result.Return(dispatcher(), result_var);
-}
-
-void PPB_URLResponseInfo_Proxy::OnMsgGetBodyAsFileRef(
-    const HostResource& response,
-    PPB_FileRef_CreateInfo* result) {
-  EnterHostFromHostResource<PPB_URLResponseInfo_API> enter(response);
-  PP_Resource file_ref = 0;
-  if (enter.succeeded())
-    file_ref = enter.object()->GetBodyAsFileRef();
-
-  // Use the FileRef proxy to serialize.
-  PPB_FileRef_Proxy* file_ref_proxy = static_cast<PPB_FileRef_Proxy*>(
-      dispatcher()->GetInterfaceProxy(API_ID_PPB_FILE_REF));
-  file_ref_proxy->SerializeFileRef(file_ref, result);
-}
-
-}  // namespace proxy
-}  // namespace ppapi