[fsp] Add support for reading directories.

chrome/browser/chromeos/extensions/file_system_provider/file_system_provider_api.cc

 // Copyright 2013 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/extensions/file_system_provider/file_system_provider_api.h"
 
 #include <string>
 
+#include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/request_manager.h"
 #include "chrome/browser/chromeos/file_system_provider/request_value.h"
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
 #include "chrome/common/extensions/api/file_system_provider_internal.h"
 
 using chromeos::file_system_provider::ProvidedFileSystemInterface;
 using chromeos::file_system_provider::RequestValue;
@@ skipping 99 matching lines @@
 bool
 FileSystemProviderInternalGetMetadataRequestedErrorFunction::RunWhenValid() {
   using api::file_system_provider_internal::GetMetadataRequestedError::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
   RejectRequest(ProviderErrorToFileError(params->error));
   return true;
 }
 
+bool FileSystemProviderInternalReadDirectoryRequestedSuccessFunction::
+    RunWhenValid() {
+  using api::file_system_provider_internal::ReadDirectoryRequestedSuccess::
+      Params;
+  scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  const bool has_next = params->has_next;
+  FulfillRequest(RequestValue::CreateForReadDirectorySuccess(params.Pass()),
+                 has_next);
+  return true;
+}
+
+bool
+FileSystemProviderInternalReadDirectoryRequestedErrorFunction::RunWhenValid() {
+  using api::file_system_provider_internal::ReadDirectoryRequestedError::Params;
+  const scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  RejectRequest(ProviderErrorToFileError(params->error));
+  return true;
+}
+
 }  // namespace extensions