[fsp] Use auto generated methods for generating dictionaries.

chrome/browser/chromeos/file_system_provider/operations/unmount.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/unmount.h"
 
 #include "base/values.h"
 #include "chrome/common/extensions/api/file_system_provider.h"
 
 namespace chromeos {
 namespace file_system_provider {
 namespace operations {
 
 Unmount::Unmount(extensions::EventRouter* event_router,
                  const ProvidedFileSystemInfo& file_system_info,
                  const storage::AsyncFileUtil::StatusCallback& callback)
     : Operation(event_router, file_system_info), callback_(callback) {
 }
 
 Unmount::~Unmount() {
 }
 
 bool Unmount::Execute(int request_id) {
-  scoped_ptr<base::DictionaryValue> values(new base::DictionaryValue);
+  using extensions::api::file_system_provider::UnmountRequestedOptions;
+
+  UnmountRequestedOptions options;
+  options.file_system_id = file_system_info_.file_system_id();
+  options.request_id = request_id;
+
   return SendEvent(
       request_id,
       extensions::api::file_system_provider::OnUnmountRequested::kEventName,
-      values.Pass());
+      extensions::api::file_system_provider::OnUnmountRequested::Create(
+          options));
 }
 
 void Unmount::OnSuccess(int /* request_id */,
                         scoped_ptr<RequestValue> /* result */,
                         bool /* has_more */) {
   callback_.Run(base::File::FILE_OK);
 }
 
 void Unmount::OnError(int /* request_id */,
                       scoped_ptr<RequestValue> /* result */,
                       base::File::Error error) {
   callback_.Run(error);
 }
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos