Revert 87415 - Convert more interfaces to the new thunk system. This goes up to and including

ppapi/thunk/thunk.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_THUNK_THUNK_H_
 #define PPAPI_THUNK_THUNK_H_
 
 struct PPB_Audio;
 struct PPB_AudioConfig;
 struct PPB_AudioTrusted;
 struct PPB_BrokerTrusted;
 struct PPB_Buffer_Dev;
 struct PPB_CharSet_Dev;
 struct PPB_CursorControl_Dev;
-struct PPB_DirectoryReader_Dev;
-struct PPB_FileChooser_Dev;
-struct PPB_FileIO_Dev;
-struct PPB_FileIOTrusted_Dev;
-struct PPB_FileRef_Dev;
-struct PPB_FileSystem_Dev;
-struct PPB_Find_Dev;
 struct PPB_Font_Dev;
 struct PPB_Graphics2D;
 struct PPB_ImageData;
 
 namespace ppapi {
 namespace thunk {
 
 const PPB_Audio* GetPPB_Audio_Thunk();
 const PPB_AudioConfig* GetPPB_AudioConfig_Thunk();
 const PPB_AudioTrusted* GetPPB_AudioTrusted_Thunk();
 const PPB_BrokerTrusted* GetPPB_Broker_Thunk();
 const PPB_Buffer_Dev* GetPPB_Buffer_Thunk();
 const PPB_CharSet_Dev* GetPPB_CharSet_Thunk();
 const PPB_CursorControl_Dev* GetPPB_CursorControl_Thunk();
-const PPB_DirectoryReader_Dev* GetPPB_DirectoryReader_Thunk();
-const PPB_FileChooser_Dev* GetPPB_FileChooser_Thunk();
-const PPB_FileIO_Dev* GetPPB_FileIO_Thunk();
-const PPB_FileIOTrusted_Dev* GetPPB_FileIOTrusted_Thunk();
-const PPB_FileRef_Dev* GetPPB_FileRef_Thunk();
-const PPB_FileSystem_Dev* GetPPB_FileSystem_Thunk();
-const PPB_Find_Dev* GetPPB_Find_Thunk();
 const PPB_Font_Dev* GetPPB_Font_Thunk();
 const PPB_Graphics2D* GetPPB_Graphics2D_Thunk();
 const PPB_ImageData* GetPPB_ImageData_Thunk();
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_THUNK_H_