[fsp] Add support for closing files.

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"
@@ skipping 151 matching lines @@
 
 bool FileSystemProviderInternalOpenFileRequestedErrorFunction::RunWhenValid() {
   using api::file_system_provider_internal::OpenFileRequestedError::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
 
   RejectRequest(ProviderErrorToFileError(params->error));
   return true;
 }
 
+bool
+FileSystemProviderInternalCloseFileRequestedSuccessFunction::RunWhenValid() {
+  using api::file_system_provider_internal::CloseFileRequestedSuccess::Params;
+  scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  FulfillRequest(scoped_ptr<RequestValue>(new RequestValue()),
+                 false /* has_more */);
+  return true;
+}
+
+bool FileSystemProviderInternalCloseFileRequestedErrorFunction::RunWhenValid() {
+  using api::file_system_provider_internal::CloseFileRequestedError::Params;
+  const scoped_ptr<Params> params(Params::Create(*args_));
+  EXTENSION_FUNCTION_VALIDATE(params);
+
+  RejectRequest(ProviderErrorToFileError(params->error));
+  return true;
+}
+
 }  // namespace extensions