Fix python scripts in src/chrome/

chrome/tools/build/win/dependencies.py

-#!/usr/bin/python
-# Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+#!/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.
 
 """Script to verify a Portable Executable's dependencies.
 
 Analyzes the input portable executable (a DLL or an EXE for example), extracts
 its imports and confirms that its dependencies haven't changed. This is for
 regression testing.
 
 Returns 0 if the list matches.
@@ skipping 20 matching lines @@
   def __str__(self):
     return self.message
 
 
 def RunSystemCommand(cmd):
   try:
     return subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
   except:
     raise Error("Failed to execute: " + cmd)
 
+
 def RunDumpbin(binary_file):
   """Runs dumpbin and parses its output.
 
   Args: binary_file: the binary to analyze
   Returns: a tuple of the dependencies and the delay-load dependencies
 
   The output of dumpbin that we will be parsing looks like this:
   --
   <blah blah>
 
@@ skipping 136 matching lines @@
                      expected_dependents,
                      list_file)
   delayed_result = Diff(pe_name,
                         "delay loaded dll",
                         delay_loaded,
                         expected_delay_loaded,
                         list_file)
   return max(deps_result, delayed_result)
 
 
-def main(options, args):
+def main():
   # PE means portable executable. It's any .DLL, .EXE, .SYS, .AX, etc.
+  usage = "usage: %prog [options] input output"
+  option_parser = optparse.OptionParser(usage=usage)
+  option_parser.add_option("-d",
+                           "--debug",
+                           dest="debug",
+                           action="store_true",
+                           default=False,
+                           help="Display debugging information")
+  options, args = option_parser.parse_args()
+  if len(args) != 2:
+    option_parser.error("Incorrect number of arguments")
   pe_name = args[0]
   deps_file = args[1]
   dependents, delay_loaded = RunDumpbin(pe_name)
   if options.debug:
     print "Dependents:"
     print "\n".join(dependents)
     print "Delayloaded:"
     print "\n".join(delay_loaded)
   return VerifyDependents(pe_name, dependents, delay_loaded, deps_file,
                           options.debug)
 
 
 if '__main__' == __name__:
-  usage = "usage: %prog [options] input output"
-  option_parser = optparse.OptionParser(usage = usage)
-  option_parser.add_option("-d",
-                           "--debug",
-                           dest="debug",
-                           action="store_true",
-                           default=False,
-                           help="Display debugging information")
-  options, args = option_parser.parse_args()
-  if len(args) != 2:
-    option_parser.error("Incorrect number of arguments")
-  sys.exit(main(options, args))
+  sys.exit(main())