This starts to fix the scripts so that they load from /usr/lib/crosutils

cros_generate_breakpad_symbols

Index: cros_generate_breakpad_symbols
diff --git a/cros_generate_breakpad_symbols b/cros_generate_breakpad_symbols
index 8bfe8792c84bb97350736ed8c6b1d065e1e4e14b..0e10cbc6e7d9770b5191ef92bd86c4ac47f024ba 100755
--- a/cros_generate_breakpad_symbols
+++ b/cros_generate_breakpad_symbols
@@ -9,12 +9,29 @@
 # NOTE: This script must be run from the chromeos build chroot environment.
 #
 
-# 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"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils $(dirname "$(readlink -f "$0")"))
+  local path
+
+  SCRIPT_ROOT=
+  for path in "${common_paths[@]}"; do
+    if [ -r "${path}/common.sh" ]; then
+      SCRIPT_ROOT=${path}
+      break
+    fi
+  done
+}
+
+find_common_sh
+. "${SCRIPT_ROOT}/common.sh" || (echo "Unable to load common.sh" && exit 1)
+# --- END COMMON.SH BOILERPLATE ---
 
 # Script must be run inside the chroot
-restart_in_chroot_if_needed $*
+restart_in_chroot_if_needed "$@"
 
 get_default_board
 
@@ -39,7 +56,7 @@ function cleanup() {
 # Given path to a debug file, return its text file
 function get_text_for_debug() {
   local debug_file=$1
-  local text_dir=$(dirname ${debug_file#$DEBUG_ROOT})
+  local text_dir=$(dirname "${debug_file#$DEBUG_ROOT}")
   local text_path=${SYSROOT}${text_dir}/$(basename "${debug_file}" .debug)
   echo ${text_path}
 }