don't always run LASTCHANGE

chrome/chrome.gyp

 # Copyright (c) 2012 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.
 {
   'variables': {
     'chromium_code': 1,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
       'version_path': 'VERSION',
@@ skipping 1142 matching lines @@
             'app/chrome_dll.ver',
             'app/nacl64_exe.ver',
             'app/other.ver',
           ],
           'rules': [
             {
               'rule_name': 'version',
               'extension': 'ver',
               'variables': {
                 'lastchange_path':
-                  '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
+                  '<(DEPTH)/build/util/LASTCHANGE',
                 'template_input_path': 'app/chrome_version.rc.version',
               },
               'conditions': [
                 [ 'branding == "Chrome"', {
                   'variables': {
                      'branding_path': 'app/theme/google_chrome/BRANDING',
                   },
                 }, { # else branding!="Chrome"
                   'variables': {
                      'branding_path': 'app/theme/chromium/BRANDING',
@@ skipping 28 matching lines @@
           'type': 'none',
           'hard_dependency': 1,
           'dependencies': [
             '../build/util/build_util.gyp:lastchange#target',
           ],
           'actions': [
             {
               'action_name': 'version_header',
               'variables': {
                 'lastchange_path':
-                  '<(SHARED_INTERMEDIATE_DIR)/build/LASTCHANGE',
+                  '<(DEPTH)/build/util/LASTCHANGE',
               },
               'conditions': [
                 [ 'branding == "Chrome"', {
                   'variables': {
                      'branding_path': 'app/theme/google_chrome/BRANDING',
                   },
                 }, { # else branding!="Chrome"
                   'variables': {
                      'branding_path': 'app/theme/chromium/BRANDING',
                   },
@@ skipping 120 matching lines @@
           'sources': [
             'browser/safe_browsing/signature_util.h',
             'browser/safe_browsing/signature_util_win.cc',
             'tools/safe_browsing/sb_sigutil.cc',
           ],
         },
       ]},  # 'targets'
     ],  # OS=="win"
   ],  # 'conditions'
 }