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

bin/cros_run_vm_test

Index: bin/cros_run_vm_test
diff --git a/bin/cros_run_vm_test b/bin/cros_run_vm_test
index c583a462cf594b43896beffc9970f851952c66ef..8c7f68f97323cb313ff7db290fa87f03f13a52b0 100755
--- a/bin/cros_run_vm_test
+++ b/bin/cros_run_vm_test
@@ -6,9 +6,30 @@
 #
 # Runs a given test case under a VM.
 
-. "$(dirname $0)/../common.sh"
-. "$(dirname $0)/../lib/cros_vm_lib.sh"
-. "$(dirname "$0")/../lib/cros_vm_constants.sh"
+# --- BEGIN COMMON.SH BOILERPLATE ---
+# Load common CrOS utilities.  Inside the chroot this file is installed in
+# /usr/lib/crosutils.  Outside the chroot we find it relative to the script's
+# location.
+find_common_sh() {
+  local common_paths=(/usr/lib/crosutils "$(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_ROOT}/lib/cros_vm_lib.sh" || die "Unable to load cros_vm_lib.sh"
+. "${SCRIPT_ROOT}/lib/cros_vm_constants.sh" || \
+  die "Unable to load cros_vm_constants.sh"
 
 MAX_RETRIES=3
 
@@ -73,7 +94,7 @@ retry_until_ssh ${MAX_RETRIES}
 if [ -n "${FLAGS_verify_chrome_version}" ]; then
   info "Verifying version of Chrome matches what we expect."
   if chrome_version_is_valid "${FLAGS_verify_chrome_version}"; then
-    chrome_version_on_vm=$("$(dirname $0)/cros_get_chrome_version" \
+    chrome_version_on_vm=$("${SCRIPTS_DIR}/bin/cros_get_chrome_version" \
         --remote=127.0.0.1 \
         --ssh_port=${FLAGS_ssh_port})
     [[ ${chrome_version_on_vm} == ${FLAGS_verify_chrome_version} ]] || \
@@ -83,7 +104,7 @@ if [ -n "${FLAGS_verify_chrome_version}" ]; then
   fi
 fi
 
-"$(dirname $0)"/../run_remote_tests.sh \
+"${SCRIPTS_DIR}/run_remote_tests.sh" \
     --board=${FLAGS_board} \
     --ssh_port=${FLAGS_ssh_port} \
     --remote=127.0.0.1 \