Keep only base/extractor.[cc|h].

standalone/build.scons

-#!/usr/bin/python2.4
-#
-# Copyright 2009 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ========================================================================
-
-Import('env')
-
-
-from standalone import standalone_installer
-
-# Build the standalone installer for each version.
-for omaha_version_info in env['omaha_versions_info']:
-  prefix = omaha_version_info.filename_prefix
-
-  source_binary = '$OBJ_ROOT/mi_exe_stub/%smi_exe_stub.exe' % (prefix)
-
-  standalone_installer.BuildOfflineInstallersVersion(
-      env,
-      omaha_version_info,
-      '$STAGING_DIR',
-      source_binary,
-      '$MAIN_DIR/standalone/standalone_installers.txt',
-      '$MAIN_DIR/standalone/manifests',
-      prefix)