Fix python scripts in src/tools/

tools/code_coverage/croc_html.py

-#!/usr/bin/python2.4
-#
-# Copyright 2009, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#        * Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-#        * Redistributions in binary form must reproduce the above
-#     copyright notice, this list of conditions and the following disclaimer
-#     in the documentation and/or other materials provided with the
-#     distribution.
-#        * Neither the name of Google Inc. nor the names of its
-#     contributors may be used to endorse or promote products derived from
-#     this software without specific prior written permission.
-#
-#     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#     OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#     LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# 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.
 
 """Crocodile HTML output."""
 
 import os
 import shutil
 import time
 import xml.dom
 
 
 class CrocHtmlError(Exception):
@@ skipping 402 matching lines @@
 
       # Write this subdir
       self.WriteSubdir(cov_dir)
 
       # Write files in this subdir
       for cov_file in cov_dir.files.itervalues():
         self.WriteFile(cov_file)
 
     # Write files in root directory
     self.WriteRoot()
-