Fix python scripts in src/chrome/

chrome/test/data/autofill/merge/tools/serialize_profiles.py

Index: chrome/test/data/autofill/merge/tools/serialize_profiles.py
diff --git a/chrome/test/data/autofill/merge/tools/serialize_profiles.py b/chrome/test/data/autofill/merge/tools/serialize_profiles.py
old mode 100644
new mode 100755
index 5c0c7b133390bc69c008fb56bd5916eabede9975..ac0fa1c83aebaac6c7061f106b6d53e881fff628
--- a/chrome/test/data/autofill/merge/tools/serialize_profiles.py
+++ b/chrome/test/data/autofill/merge/tools/serialize_profiles.py
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # Copyright (c) 2011 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.
@@ -8,17 +9,18 @@ import sys
 
 from autofill_merge_common import SerializeProfiles, ColumnNameToFieldType
 
+
 def main():
   """Serializes the autofill_profiles table from the specified database."""
 
   if len(sys.argv) != 2:
     print "Usage: python serialize_profiles.py <path/to/database>"
-    return
+    return 1
 
   database = sys.argv[1]
   if not os.path.isfile(database):
     print "Cannot read database at \"%s\"" % database
-    return
+    return 1
 
   # Read the autofill_profile_names table.
   try:
@@ -77,7 +79,8 @@ def main():
     profiles[guid].append(("PHONE_HOME_WHOLE_NUMBER", profile[2]))
 
   print SerializeProfiles(profiles.values())
+  return 0
 
 
 if __name__ == '__main__':
-  main()
+  sys.exit(main())