Get rid of gcl.ReadFile.

trychange.py

 #!/usr/bin/python
 # Copyright (c) 2009 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.
 """Client-side script to send a try job to the try server. It communicates to
 the try server by either writting to a svn repository or by directly connecting
 to the server by HTTP.
 """
 
 import datetime
@@ skipping 502 matching lines @@
       not options.diff and not options.url):
     # TODO(maruel): It should just try the modified files showing up in a
     # svn status.
     parser.error('Nothing to try, changelist is empty.')
 
   try:
     # Convert options.diff into the content of the diff.
     if options.url:
       options.diff = urllib.urlopen(options.url).read()
     elif options.diff:
-      options.diff = gcl.ReadFile(options.diff)
+      options.diff = gcl.gclient_utils.FileRead(options.diff, 'rb')
     # Process the VCS in any case at least to retrieve the email address.
     try:
       options.scm = GuessVCS(options)
       options.scm.ProcessOptions()
     except NoTryServerAccess, e:
       # If we got the diff, we don't care.
       if not options.diff:
         # TODO(maruel): Raise what?
         raise
 
@@ skipping 27 matching lines @@
   except (InvalidScript, NoTryServerAccess), e:
     if swallow_exception:
       return 1
     print e
     return 1
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(TryChange(None, None, False))