Remove Skia's forked buildbot code

tools/update-deps.py

-#!/usr/bin/python
-# Copyright (c) 2012 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.
-
-"""Run this script to update chromium_revision within the buildbot DEPS file.
-"""
-
-import os
-import re
-import subprocess
-
-
-def GetSvnRevision(file_or_url):
-  """Returns the revision of this file within its Subversion repository
-     (or the latest revision of a given Subversion repository).
-     Raises IOError if unable to find the revision of this file/URL.
-  """
-  command = ['svn', 'info', file_or_url]
-  popen = subprocess.Popen(command, stdout=subprocess.PIPE, shell=False)
-  output = popen.stdout.read()
-  matches = re.findall('Revision: (\d+)$', output, re.MULTILINE)
-  if not matches:
-    raise IOError('could not find revision of file_or_url %s' % file_or_url)
-  return matches[0]
-
-
-def ReplaceDepsVar(deps_file, variable_name, value):
-  """Replaces the definition of a variable within this DEPS file, and writes
-     the new version of the file out in place of the old one.
-  """
-  with open(deps_file, 'r') as file_handle:
-    contents_old = file_handle.read()
-  contents_new = re.sub(
-      '"%s":.*,' % variable_name,
-      '"%s": "%s",' % (variable_name, value),
-      contents_old)
-  with open(deps_file, 'w') as file_handle:
-    file_handle.write(contents_new)
-
-
-def Main():
-  # cd to the root directory of this checkout.
-  os.chdir(os.path.join(os.path.dirname(__file__), os.path.pardir))
-
-  # Update chromium_revision in standard DEPS file.
-  chromium_rev = GetSvnRevision('http://src.chromium.org/svn/trunk')
-  ReplaceDepsVar('DEPS', 'chromium_revision', chromium_rev)
-
-
-if __name__ == '__main__':
-  Main()