Check in tofactory script.

Also refactor the other scripts to move more common functions (debug output, etc.) to common.sh.

BUG=chrome-os-partner:1903
TEST=manual; ran on a Chrome notebook, verified the right things got copied.

Review URL: http://codereview.chromium.org/5878005

Change-Id: Ib7131356ecb6f88eee3d529a518f23b94756d0c0

scripts/image_signing/make_dev_firmware.sh

@@ -26,7 +26,6 @@ DEFINE_boolean force_backup \
   $FLAGS_TRUE "Create backup even if source is not live" ""
 DEFINE_string backup_dir \
   "$DEFAULT_BACKUP_FOLDER" "Path of directory to store firmware backups" ""
-DEFINE_boolean debug $FLAGS_FALSE "Provide debug messages" "d"
 
 # Parse command line
 FLAGS "$@" || exit 1
@@ -44,23 +43,6 @@ EXEC_LOG="$(make_temp_file)"
 
 # Functions
 # ----------------------------------------------------------------------------
-# Reports error message and exit(1)
-err_die() {
-  echo "ERROR: $*" 1>&2
-  exit 1
-}
-
-# Returns true if we're running in debug mode
-is_debug_mode() {
-  [ "$FLAGS_debug" = $FLAGS_TRUE ]
-}
-
-# Prints messages (in parameters) in debug mode
-debug_msg() {
-  if is_debug_mode; then
-    echo "DEBUG: $*" 1>&2
-  fi
-}
 
 # Reads $IMAGE from $FLAGS_from
 read_image() {