Convert URLLoader to the new proxy design

ppapi/thunk/resource_creation_api.h

 // 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.
 
 #ifndef PPAPI_THUNK_RESOURCE_CREATION_API_H_
 #define PPAPI_THUNK_RESOURCE_CREATION_API_H_
 
 #include "ppapi/c/dev/ppb_file_chooser_dev.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
@@ skipping 10 matching lines @@
 #include "ppapi/c/private/ppb_network_monitor_private.h"
 #include "ppapi/shared_impl/api_id.h"
 
 struct PP_Flash_Menu;
 struct PP_FontDescription_Dev;
 struct PP_BrowserFont_Trusted_Description;
 struct PP_Size;
 
 namespace ppapi {
 
+struct PPB_FileRef_CreateInfo;
 struct URLRequestInfoData;
 struct URLResponseInfoData;
 
 namespace thunk {
 
 // A functional API for creating resource types. Separating out the creation
 // functions here allows us to implement most resources as a pure "resource
 // API", meaning all calls are routed on a per-resource-object basis. The
 // creation functions are not per-object (since there's no object during
 // creation) so need functional routing based on the instance ID.
 class ResourceCreationAPI {
  public:
   virtual ~ResourceCreationAPI() {}
 
   virtual PP_Resource CreateFileIO(PP_Instance instance) = 0;
   virtual PP_Resource CreateFileRef(PP_Resource file_system,
                                     const char* path) = 0;
+
+  // Like the above version but takes a serialized file ref. The resource
+  // in the serialized file ref is passed into this, which takes ownership of
+  // the reference. In the proxy, the return value will be a plugin resource,
+  // in the impl, the return value will be the same resource ID.
+  virtual PP_Resource CreateFileRef(
+      const PPB_FileRef_CreateInfo& serialized) = 0;
+
   virtual PP_Resource CreateFileSystem(PP_Instance instance,
                                        PP_FileSystemType type) = 0;
   virtual PP_Resource CreateIMEInputEvent(PP_Instance instance,
                                           PP_InputEvent_Type type,
                                           PP_TimeTicks time_stamp,
                                           struct PP_Var text,
                                           uint32_t segment_number,
                                           const uint32_t* segment_offsets,
                                           int32_t target_segment,
                                           uint32_t selection_start,
@@ skipping 108 matching lines @@
       PP_VideoDecoder_Profile profile) = 0;
 #endif  // !defined(OS_NACL)
 
   static const ApiID kApiID = API_ID_RESOURCE_CREATION;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_RESOURCE_CREATION_API_H_