Finally get rid of depot_tools' breakpad.

drover.py

 #!/usr/bin/env 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.
 
 import datetime
 import optparse
 import os
 import re
 import sys
 import urlparse
 
-import breakpad  # pylint: disable=W0611
 
 import gclient_utils
 import subprocess2
 
 USAGE = """
 WARNING: Please use this tool in an empty directory
 (or at least one that you don't mind clobbering.)
 
 REQUIRES: SVN 1.5+
 NOTE: NO NEED TO CHECKOUT ANYTHING IN ADVANCE OF USING THIS TOOL.
@@ skipping 346 matching lines @@
     if sys.platform == 'win32':
       folder = '%%APPDATA%\\Subversion\\auth'
     else:
       folder = '~/.subversion/auth'
   folder = os.path.expandvars(os.path.expanduser(folder))
   svn_simple_folder = os.path.join(folder, 'svn.simple')
   results = {}
   try:
     for auth_file in os.listdir(svn_simple_folder):
       # Read the SVN auth file, convert it into a dictionary, and store it.
-      results[auth_file] = dict(re.findall(r'K [0-9]+\n(.*)\nV [0-9]+\n(.*)\n', 
+      results[auth_file] = dict(re.findall(r'K [0-9]+\n(.*)\nV [0-9]+\n(.*)\n',
           open(os.path.join(svn_simple_folder, auth_file)).read()))
   except Exception as _:
     pass
   return results
 
 
 def getCurrentSVNUsers(url):
   """Tries to fetch the current SVN in the current checkout by scanning the
   SVN authorization folder for a match with the current SVN URL."""
   netloc = urlparse.urlparse(url)[1]
   auth_infos = getSVNAuthInfo()
   results = []
   for _, auth_info in auth_infos.iteritems():
-    if ('svn:realmstring' in auth_info 
+    if ('svn:realmstring' in auth_info
         and netloc in auth_info['svn:realmstring']):
       username = auth_info['username']
       results.append(username)
       if 'google.com' in username:
         results.append(username.replace('google.com', 'chromium.org'))
   return results
 
 
 def prompt(question):
   while True:
@@ skipping 235 matching lines @@
 
   return drover(options, args)
 
 
 if __name__ == "__main__":
   try:
     sys.exit(main())
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(1)