Revert of DevTools: clean up scripts folder

third_party/WebKit/Source/devtools/scripts/convert_svg_images_to_png.py

 #!/usr/bin/env python
 # Copyright (c) 2014 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.
 
+import devtools_file_hashes
+import hashlib
+import os
 import os.path
 import re
 import subprocess
 import sys
 
-from build import devtools_file_hashes
-
 try:
     import json
 except ImportError:
     import simplejson as json
 
 
 def check_installed(app_name):
     proc = subprocess.Popen("which %s" % app_name, stdout=subprocess.PIPE, shell=True)
     proc.communicate()
     if proc.returncode != 0:
@@ skipping 30 matching lines @@
     name = re.sub(".svg$", "", file_name)
     name2x = name + "_2x"
     processes[name] = convert_svg_to_png(name, name, 90)
     processes[name2x] = convert_svg_to_png(name, name2x, 180)
 
 for file_name, proc in processes.items():
     (convert_out, _) = proc.communicate()
     print("Conversion of %s finished: %s" % (file_name, convert_out))
 
 devtools_file_hashes.update_file_hashes(hashes_file_path, svg_file_paths)