Fix python scripts in src/tools/

tools/site_compare/scrapers/ie/ie7.py

-#!/usr/bin/python2.4
+#!/usr/bin/env python
 # Copyright (c) 2006-2008 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.
 
 """Does scraping for all known versions of IE."""
 
 import pywintypes
 import time
 import types
 
@@ skipping 174 matching lines @@
   # we've probably got a crash
   if proc:
     keyboard.TypeString(r"{\4}", use_modifiers=True)
     if not windowing.WaitForProcessExit(proc, timeout):
       windowing.EndProcess(proc)
 
   return ret
 
 
 if __name__ == "__main__":
   # We're being invoked rather than imported, so run some tests

[Alexander Potapenko, 2011/11/24 07:53:02]

missing main()

   path = r"c:\sitecompare\scrapes\ie7\7.0.5380.11"
   windowing.PreparePath(path)
 
   # Scrape three sites and save the results
   Scrape(
     ["http://www.microsoft.com",
      "http://www.google.com",
      "http://www.sun.com"],
     path, (1024, 768), (0, 0))
-