integrate pam_offline with the build and packaging system

src/scripts/build_platform_packages.sh

 #!/bin/bash
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Load common constants.  This should be the first executable line.
 # The path to common.sh should be relative to your script's location.
 . "$(dirname "$0")/common.sh"
 
@@ skipping 13 matching lines @@
 
 # Die on error
 set -e
 
 # Number of jobs for scons calls.
 NUM_JOBS=`grep -c "^processor" /proc/cpuinfo`
 
 PLATFORM_DIR="$SRC_ROOT/platform"
 
 PLATFORM_DIRS="acpi assets fake_hal init installer login_manager \
-               memento_softwareupdate pam_google window_manager \
+               memento_softwareupdate pam_google pam_offline window_manager \
                cros chrome screenlocker cryptohome \
                monitor_reconfig microbenchmark minijail metrics_collection \
                theme metrics_daemon"
 
 THIRD_PARTY_DIR="$SRC_ROOT/third_party"
 THIRD_PARTY_PACKAGES="e2fsprogs/files flimflam \
                       gflags google-breakpad gpt gtest gmock \
                       ibus ibus-chewing ibus-anthy ibus-hangul ibus-m17n \
                       ply-image slim/src synaptics \
                       upstart/files wpa_supplicant \
@@ skipping 46 matching lines @@
   for i in $PLATFORM_DIRS
   do
     echo "Building package ${i}..."
     cd "$PLATFORM_DIR/$i"
     ./make_pkg.sh
     cd -
   done
 fi
 
 echo "All packages built."