Stop rolling /net and /crypto from Chromium.

mojo/tools/roll/update_from_chromium.py

 #!/usr/bin/env python
 # Copyright 2014 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 argparse
 import json
 import os
 import subprocess
 import sys
@@ skipping 60 matching lines @@
     "tools/msan",
     "tools/protoc_wrapper",
     "tools/relocation_packer",
     "tools/valgrind",
     "tools/vim",
     "tools/xdisplaycheck",
     "url",
     "ui/gl",
     ]
 
-# These directories are temporarily cloned in order to support the network
-# bootstrap library until we get that sorted out.
-net_dirs = [
-    "crypto",
-    "net"]
-
 files_to_copy = ["sandbox/sandbox_export.h",
     ".clang-format"]
 
 # The contents of these files before the roll will be preserved after the roll,
 # even though they live in directories rolled in from Chromium.
 files_not_to_roll = [ "build/module_args/mojo.gni" ]
 
-dirs = dirs_to_snapshot + net_dirs
+dirs = dirs_to_snapshot
 
 def chromium_rev_number(src_commit):
   base_url = "https://cr-rev.appspot.com/_ah/api/crrev/v1/commit/"
   commit_info = json.load(urllib2.urlopen(base_url + src_commit))
   return commit_info["numberings"][0]["number"]
 
 def rev(source_dir):
   for d in dirs:
     print "removing directory %s" % d
     try:
@@ skipping 29 matching lines @@
 
   print "Restoring files whose contents don't track Chromium"
   for f in files_not_to_roll:
     system(["git", "checkout", pre_roll_commit, "--", f], cwd=mojo_root_dir)
   if files_not_to_roll:
     commit("Restored pre-roll versions of files that don't get rolled")
   return 0
 
 if __name__ == "__main__":
   sys.exit(main())