Made register_local_nm_hosts.sh honor $CHROME_USER_DATA_DIR.

remoting/tools/register_local_nm_hosts.sh

 #!/bin/sh
 # Copyright 2014 The Chromium 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 that can be used to register native messaging hosts in the output
 # directory.
 
 set -e
 
@@ skipping 28 matching lines @@
 
   install_manifest \
      "${SRC_DIR}/remoting/host/it2me/${IT2ME_HOST_NAME}.json.jinja2" \
      "${build_dir}/remote_assistance_host" \
      IT2ME_HOST_PATH "${chrome_data_dir}"
 }
 
 register_hosts_for_all_channels() {
   local build_dir="$1"
 
-  if [ $(uname -s) == "Darwin" ]; then
+  if [ -n "$CHROME_USER_DATA_DIR" ]; then
+    register_hosts "${build_dir}" \
+        "${CHROME_USER_DATA_DIR}/NativeMessagingHosts"
+  elif [ $(uname -s) == "Darwin" ]; then
     register_hosts "${build_dir}" \
         "${HOME}/Library/Application Support/Google/Chrome/NativeMessagingHosts"
     register_hosts "${build_dir}" \
         "${HOME}/Library/Application Support/Chromium/NativeMessagingHosts"
   else
     register_hosts "${build_dir}" \
         "${HOME}/.config/google-chrome/NativeMessagingHosts"
     register_hosts "${build_dir}" \
         "${HOME}/.config/google-chrome-beta/NativeMessagingHosts"
     register_hosts "${build_dir}" \
         "${HOME}/.config/google-chrome-unstable/NativeMessagingHosts"
     register_hosts "${build_dir}" \
         "${HOME}/.config/chromium/NativeMessagingHosts"
   fi
 }
 
 unregister_hosts() {
   local chrome_data_dir="$1"
 
   rm -f "${chrome_data_dir}/${ME2ME_HOST_NAME}.json"
   rm -f "${chrome_data_dir}/${IT2ME_HOST_NAME}.json"
 }
 
 unregister_hosts_for_all_channels() {
-  if [ $(uname -s) == "Darwin" ]; then
+  if [ -n "$CHROME_USER_DATA_DIR" ]; then
+    unregister_hosts \
+        "${CHROME_USER_DATA_DIR}/NativeMessagingHosts"
+  elif [ $(uname -s) == "Darwin" ]; then
     unregister_hosts \
         "${HOME}/Library/Application Support/Google/Chrome/NativeMessagingHosts"
     unregister_hosts \
         "${HOME}/Library/Application Support/Chromium/NativeMessagingHosts"
   else
     unregister_hosts "${HOME}/.config/google-chrome/NativeMessagingHosts"
     unregister_hosts "${HOME}/.config/google-chrome-beta/NativeMessagingHosts"
     unregister_hosts \
         "${HOME}/.config/google-chrome-unstable/NativeMessagingHosts"
     unregister_hosts "${HOME}/.config/chromium/NativeMessagingHosts"
@@ skipping 20 matching lines @@
       exit 0
       ;;
     *)
       print_usage
       exit 1
       ;;
   esac
 fi
 
 register_hosts_for_all_channels "${SRC_DIR}/out/${build_dir}"