Pepper/Flapper: Get rid of unimplemented private file ref stuff and implement proxy.

ppapi/proxy/ppapi_messages_internal.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.
 
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/ipc/gpu_command_buffer_traits.h"
 #include "ipc/ipc_message_macros.h"
 #include "ppapi/c/dev/pp_file_info_dev.h"
 #include "ppapi/c/ppb_var.h"
 
@@ skipping 338 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBFlash_NavigateToURL,
                            PP_Instance /* instance */,
                            std::string /* url */,
                            std::string /* target */,
                            PP_Bool /* result */)
 IPC_SYNC_MESSAGE_ROUTED1_0(PpapiHostMsg_PPBFlash_RunMessageLoop,
                            PP_Instance /* instance */)
 IPC_SYNC_MESSAGE_ROUTED1_0(PpapiHostMsg_PPBFlash_QuitMessageLoop,
                            PP_Instance /* instance */)
 
+// PPB_Flash_File_FileRef.
+IPC_SYNC_MESSAGE_ROUTED2_2(PpapiHostMsg_PPBFlashFile_FileRef_OpenFile,
+                           pp::proxy::HostResource /* file_ref */,
+                           int32_t /* mode */,
+                           IPC::PlatformFileForTransit /* file_handle */,
+                           int32_t /* result */)
+IPC_SYNC_MESSAGE_ROUTED1_2(PpapiHostMsg_PPBFlashFile_FileRef_QueryFile,
+                           pp::proxy::HostResource /* file_ref */,
+                           PP_FileInfo_Dev /* info */,
+                           int32_t /* result */)
+
 // PPB_Flash_File_ModuleLocal.
 IPC_SYNC_MESSAGE_ROUTED3_2(PpapiHostMsg_PPBFlashFile_ModuleLocal_OpenFile,
                            PP_Instance /* instance */,
                            std::string /* path */,
                            int32_t /* mode */,
                            IPC::PlatformFileForTransit /* file_handle */,
                            int32_t /* result */)
 IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBFlashFile_ModuleLocal_RenameFile,
                            PP_Instance /* instance */,
                            std::string /* path_from */,
@@ skipping 289 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED2_2(PpapiHostMsg_PPBVar_IsInstanceOfDeprecated,
                            pp::proxy::SerializedVar /* var */,
                            int64 /* object_class */,
                            int64 /* object-data */,
                            PP_Bool /* result */)
 IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBVar_CreateObjectDeprecated,
                            PP_Instance /* instance */,
                            int64 /* object_class */,
                            int64 /* object_data */,
                            pp::proxy::SerializedVar /* result */)