[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/operations/read_directory.cc

 // Copyright 2014 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 "chrome/browser/chromeos/file_system_provider/operations/read_directory.h"
 
 #include <string>
 
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/operations/get_metadata.h"
@@ skipping 37 matching lines @@
     }
 
     output->push_back(output_entry);
   }
 
   return true;
 }
 
 }  // namespace
 
-ReadDirectory::ReadDirectory(
-    extensions::EventRouter* event_router,
+template <class DestinationPolicy>
+ReadDirectory<DestinationPolicy>::ReadDirectory(
+    typename DestinationPolicy::EventRouterType* event_router,
     const ProvidedFileSystemInfo& file_system_info,
     const base::FilePath& directory_path,
     const storage::AsyncFileUtil::ReadDirectoryCallback& callback)
-    : Operation(event_router, file_system_info),
+    : Operation<DestinationPolicy>(event_router, file_system_info),
       directory_path_(directory_path),
       callback_(callback) {
 }
 
-ReadDirectory::~ReadDirectory() {
+template <class DestinationPolicy>
+ReadDirectory<DestinationPolicy>::~ReadDirectory() {
 }
 
-bool ReadDirectory::Execute(int request_id) {
+template <class DestinationPolicy>
+bool ReadDirectory<DestinationPolicy>::Execute(int request_id) {
   using extensions::api::file_system_provider::ReadDirectoryRequestedOptions;
 
   ReadDirectoryRequestedOptions options;
-  options.file_system_id = file_system_info_.file_system_id();
+  options.file_system_id = this->file_system_info_.file_system_id();
   options.request_id = request_id;
   options.directory_path = directory_path_.AsUTF8Unsafe();
 
-  return SendEvent(
-      request_id,
-      extensions::api::file_system_provider::OnReadDirectoryRequested::
-          kEventName,
+  return this->SendEvent(
+      request_id, extensions::api::file_system_provider::
+                      OnReadDirectoryRequested::kEventName,
       extensions::api::file_system_provider::OnReadDirectoryRequested::Create(
           options));
 }
 
-void ReadDirectory::OnSuccess(int /* request_id */,
-                              scoped_ptr<RequestValue> result,
-                              bool has_more) {
+template <class DestinationPolicy>
+void ReadDirectory<DestinationPolicy>::OnSuccess(int /* request_id */,
+                                      scoped_ptr<RequestValue> result,
+                                      bool has_more) {
   storage::AsyncFileUtil::EntryList entry_list;
   const bool convert_result =
       ConvertRequestValueToEntryList(result.Pass(), &entry_list);
 
   if (!convert_result) {
     LOG(ERROR)
         << "Failed to parse a response for the read directory operation.";
     callback_.Run(base::File::FILE_ERROR_IO,
                   storage::AsyncFileUtil::EntryList(),
                   false /* has_more */);
     return;
   }
 
   callback_.Run(base::File::FILE_OK, entry_list, has_more);
 }
 
-void ReadDirectory::OnError(int /* request_id */,
-                            scoped_ptr<RequestValue> /* result */,
-                            base::File::Error error) {
-  callback_.Run(
-      error, storage::AsyncFileUtil::EntryList(), false /* has_more */);
+template <class DestinationPolicy>
+void ReadDirectory<DestinationPolicy>::OnError(int /* request_id */,
+                                    scoped_ptr<RequestValue> /* result */,
+                                    base::File::Error error) {
+  callback_.Run(error, storage::AsyncFileUtil::EntryList(),
+                false /* has_more */);
 }
 
+FOR_EACH_DESTINATION_SPECIALIZE(ReadDirectory)
+
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos