Convert most remaining resources to use the API/thunk system. The significant

webkit/plugins/ppapi/ppb_directory_reader_impl.cc

 // 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 "webkit/plugins/ppapi/ppb_directory_reader_impl.h"
 
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 55 matching lines @@
 PP_Resource PPB_DirectoryReader_Impl::Create(PP_Resource directory_ref) {
   EnterResourceNoLock<PPB_FileRef_API> enter(directory_ref, true);
   if (enter.failed())
     return 0;
 
   PPB_DirectoryReader_Impl* reader = new PPB_DirectoryReader_Impl(
       static_cast<PPB_FileRef_Impl*>(enter.object()));
   return reader->GetReference();
 }
 
-PPB_DirectoryReader_Impl*
-PPB_DirectoryReader_Impl::AsPPB_DirectoryReader_Impl() {
-  return this;
-}
-
 PPB_DirectoryReader_API* PPB_DirectoryReader_Impl::AsPPB_DirectoryReader_API() {
   return this;
 }
 
 int32_t PPB_DirectoryReader_Impl::GetNextEntry(
     PP_DirectoryEntry_Dev* entry,
     PP_CompletionCallback callback) {
   if (directory_ref_->GetFileSystemType() == PP_FILESYSTEMTYPE_EXTERNAL)
     return PP_ERROR_FAILED;
 
@@ skipping 55 matching lines @@
   if (!has_more_) {
     entry_->file_ref = 0;
     return true;
   }
 
   return false;
 }
 
 }  // namespace ppapi
 }  // namespace webkit