Update branch path-finding regex to work directly with WebKit repository....

drover.py

 #!/usr/bin/python
 # Copyright (c) 2010 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.
 
 import optparse
 import os
 import re
 import subprocess
 import sys
@@ skipping 157 matching lines @@
 
 def checkoutRevision(url, revision, branch_url, revert=False):
   files_info = getFileInfo(url, revision)
   paths = getBestMergePaths2(files_info, revision)
   export_map = getBestExportPathsMap2(files_info, revision)
 
   command = 'svn checkout -N ' + branch_url
   print command
   os.system(command)
 
-  match = re.search(r"svn://.*/(.*)", branch_url)
+  match = re.search(r"^[a-z]+://.*/(.*)", branch_url)
 
   if match:
     os.chdir(match.group(1))
 
   # This line is extremely important due to the way svn behaves in the
   # set-depths action.  If parents aren't handled before children, the child
   # directories get clobbered and the merge step fails.
   paths.sort()
 
   # Checkout the directories that already exist
@@ skipping 361 matching lines @@
 
   if options.local and (options.revert or options.branch):
     option_parser.error("--local cannot be used with --revert or --branch")
     return 1
 
   return drover(options, args)
 
 
 if __name__ == "__main__":
   sys.exit(main())