Check in chrome/app/address_input_strings.grdp.

third_party/libaddressinput/chromium/tools/update-strings.py

 #!/usr/bin/env python
 
 # 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.
 
 # This script updates the address_input_strings.grdp file based on the strings
 # in libaddressinput.
 
 import os
 import sys
 
 HEADER = """<!--
 
 DO NOT MODIFY.
 
-This file is generated by "gclient runhooks" from
+This file is generated by
+third_party/libaddressinput/chromium/tools/update-strings.py from
 src/third_party/libaddressinput/src/cpp/res/messages.grdp. Submit modifications
 to the upstream library at https://libaddressinput.googlecode.com/.
 
 -->
 """
 
 script_dir = os.path.dirname(os.path.realpath(__file__))
 from_file = os.path.abspath(os.path.join(
     script_dir, os.pardir, os.pardir, 'src', 'cpp', 'res', 'messages.grdp'))
 to_file = os.path.abspath(os.path.join(
     script_dir, os.pardir, os.pardir, os.pardir, os.pardir, 'chrome', 'app',
    'address_input_strings.grdp'))
 
 with open(from_file, 'r') as source:
   with open(to_file, 'w') as destination:
     destination.write(source.readline())  # XML declaration.
     destination.write(HEADER)
     destination.write(source.read())