Move DirectoryReader::ReadEntries to FileRef::ReadDirectoryEntries

ppapi/cpp/file_ref.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/cpp/file_ref.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/completion_callback.h"
+#include "ppapi/cpp/directory_entry.h"
 #include "ppapi/cpp/file_system.h"
 #include "ppapi/cpp/module_impl.h"
 
-
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_FileRef_1_0>() {
   return PPB_FILEREF_INTERFACE_1_0;
 }
 
 template <> const char* interface_name<PPB_FileRef_1_1>() {
   return PPB_FILEREF_INTERFACE_1_1;
@@ skipping 140 matching lines @@
   return cc.MayForce(PP_ERROR_NOINTERFACE);
 }
 
 int32_t FileRef::Query(const CompletionCallbackWithOutput<PP_FileInfo>& cc) {
   if (!has_interface<PPB_FileRef_1_1>())
     return cc.MayForce(PP_ERROR_NOINTERFACE);
   return get_interface<PPB_FileRef_1_1>()->Query(
       pp_resource(), cc.output(), cc.pp_completion_callback());
 }
 
+int32_t FileRef::ReadDirectoryEntries(
+    const CompletionCallbackWithOutput<std::vector<DirectoryEntry> >&
+        callback) {
+  if (!has_interface<PPB_FileRef_1_1>())
+    return callback.MayForce(PP_ERROR_NOINTERFACE);
+  return get_interface<PPB_FileRef_1_1>()->ReadDirectoryEntries(
+      pp_resource(), callback.output(), callback.pp_completion_callback());
+}
 
 }  // namespace pp