TODO

chrome/tools/build/mac/clean_up_old_versions

 #!/bin/sh
 
 # Copyright (c) 2009 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.
 
 # Remove old versioned directories from an .app bundle.  The built-up bundle
 # only needs to contain the current versioned directory.
 
 set -e
 
 if [ $# -ne 1 ] ; then
   echo "usage: ${0} VERSION" >& 2
   exit 1
 fi
 
 VERSION="${1}"
 CONTENTS_DIR="${BUILT_PRODUCTS_DIR}/${CONTENTS_FOLDER_PATH}"
 VERSIONED_DIR="${CONTENTS_DIR}/Versions"
 CURRENT_VERSIONED_DIR="${VERSIONED_DIR}/${VERSION}"
 
 for dir in "${VERSIONED_DIR}/"* ; do
   if [ "${dir}" != "${CURRENT_VERSIONED_DIR}" ] ; then
     rm -rf "${dir}"
   fi
 done
-
-# Older builds did not use a versioned directory, and instead placed the
-# framework, helper app, and other components directly within the main app
-# bundle.  To keep incremental developer builds relatively pristine and
-# equivalent to clean builds, these old components need to be cleaned up if
-# present.
-# Frameworks includes the app framework (Chromium Framework.framework or
-# Google Chrome Framework.framework) and, if Keystone-enabled,
-# KeystoneRegistration.framework.  To simplify this script, it removes the
-# helper app at its old location under either of the supported branding names.
-# TODO(mark): Remove the following section some time after October 27, 2009,
-# allowing two weeks for the transition.
-
-rm -rf "${CONTENTS_DIR}/Frameworks" \
-       "${CONTENTS_DIR}/Resources/Chromium Helper.app" \
-       "${CONTENTS_DIR}/Resources/Google Chrome Helper.app" \
-       "${CONTENTS_DIR}/MacOS/libavcodec.52.dylib" \
-       "${CONTENTS_DIR}/MacOS/libavformat.52.dylib" \
-       "${CONTENTS_DIR}/MacOS/libavutil.50.dylib"