Fix python scripts in src/chrome/

chrome/tools/build/win/sln_deps.py

Index: chrome/tools/build/win/sln_deps.py
diff --git a/chrome/tools/build/win/sln_deps.py b/chrome/tools/build/win/sln_deps.py
index ef7803e63baddb1e07630b742cedd0ff76c9d463..ddcf5973686227515be87a341049f7d5599f1f5f 100755
--- a/chrome/tools/build/win/sln_deps.py
+++ b/chrome/tools/build/win/sln_deps.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/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.
@@ -63,7 +63,7 @@ def ScanSlnFile(filename):
   return projects
 
 
-def main(filename, project_to_scan, reverse):
+def sln_deps(filename, project_to_scan, reverse):
   """Displays the project's dependencies."""
   project_to_scan = project_to_scan.lower()
 
@@ -91,9 +91,10 @@ def main(filename, project_to_scan, reverse):
     deps_name = [projects[d].name for d in project.deps]
     print "\n".join(str("  " + name) for name in sorted(deps_name,
                                                         key=str.lower))
+  return 0
 
 
-if __name__ == '__main__':
+def main():
   usage = "usage: %prog [options] solution [project]"
 
   description = ("Display the dependencies of a project in human readable"
@@ -116,5 +117,8 @@ if __name__ == '__main__':
   project_to_scan = ""
   if len(args) == 2:
     project_to_scan = args[1]
-  main(args[0], project_to_scan, options.reverse)
+  return sln_deps(args[0], project_to_scan, options.reverse)
+
 
+if __name__ == '__main__':
+  sys.exit(main())