Add --nousepkg option for build_packages to sbt

sync_build_test.sh

 #!/bin/bash
 
 # Copyright (c) 2010 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.
 
 # Script to sync your checkout, build a Chromium OS image, and test it all
 # with one command.  Can also check out a new Chromium OS checkout and
 # perform a subset of the above operations.
 #
@@ skipping 61 matching lines @@
 DEFINE_boolean mod_image_for_test ${FLAGS_FALSE} "Modify the image for testing"
 DEFINE_string remote "" \
     "Use this hostname/IP for live updating and running tests"
 DEFINE_string repo "${CHROMIUMOS_REPO}" "gclient repo for chromiumos"
 DEFINE_boolean sync ${FLAGS_TRUE} "Sync the checkout"
 DEFINE_string test "" \
     "Test the built image with the given params to run_remote_tests"
 DEFINE_string top "" \
     "Root directory of your checkout (defaults to determining from your cwd)"
 DEFINE_boolean withdev ${FLAGS_TRUE} "Build development packages"
+DEFINE_boolean usepkg ${FLAGS_TRUE} "Use binary packages"
 DEFINE_boolean unittest ${FLAGS_TRUE} "Run unit tests"
 
 
 # Returns a heuristic indicating if we believe this to be a google internal
 # development environment.
 # Returns:
 #   0 if so, 1 otherwise
 function is_google_environment() {
   hostname | egrep -q .google.com\$
   return $?
@@ skipping 417 matching lines @@
     chdir_relative src/scripts
     # Only setup board target if the directory does not exist
     if [[ ! -d "${FLAGS_top}/chroot/build/${FLAGS_board}" ]]; then
       run_phase_in_chroot "Setting up board target" \
           ./setup_board "${board_param}"
     fi
     local build_autotest_param=""
     if [[ ${FLAGS_build_autotest} -eq ${FLAGS_TRUE} ]]; then
       build_autotest_param="--withautotest"
     fi
+    local pkg_param=""
+    if [[ ${FLAGS_usepkg} -eq ${FLAGS_FALSE} ]]; then
+      pkg_param="--nousepkg"
+    fi
 
     run_phase_in_chroot "Building packages" \
         ./build_packages "${board_param}" \
-        ${jobs_param} ${withdev_param} ${build_autotest_param}
+        ${jobs_param} ${withdev_param} ${build_autotest_param} \
+        ${pkg_param}
 
     run_phase_in_chroot "Building unit tests" ./build_tests.sh ${board_param}
     if [[ "${FLAGS_board}" == "x86-generic" ]]; then
       run_phase_in_chroot "Running unit tests" ./run_tests.sh ${board_param}
     fi
   fi
 
   if [[ ${FLAGS_master} -eq ${FLAGS_TRUE} ]]; then
     chdir_relative src/scripts
     if [[ -n "${FLAGS_chronos_passwd}" ]]; then
@@ skipping 34 matching lines @@
   fi
 
   trap - EXIT
   echo "Successfully used ${FLAGS_top} to:"
   describe_steps
   show_duration
 }
 
 
 main $@