Use AuthCredentials throughout the network stack instead of username/password.

net/net.gyp

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     'linux_link_kerberos%': 0,
     'conditions': [
@@ skipping 234 matching lines @@
         'base/x509_certificate.h',
         'base/x509_certificate_mac.cc',
         'base/x509_certificate_nss.cc',
         'base/x509_certificate_openssl.cc',
         'base/x509_certificate_win.cc',
         'base/x509_util.h',
         'base/x509_util_nss.cc',
         'base/x509_util_nss.h',
         'base/x509_util_openssl.cc',
         'base/x509_util_openssl.h',
+        'base/zap.cc',
+        'base/zap.h',
         'disk_cache/addr.cc',
         'disk_cache/addr.h',
         'disk_cache/backend_impl.cc',
         'disk_cache/backend_impl.h',
         'disk_cache/bitmap.cc',
         'disk_cache/bitmap.h',
         'disk_cache/block_files.cc',
         'disk_cache/block_files.h',
         'disk_cache/cache_util.h',
         'disk_cache/cache_util_posix.cc',
@@ skipping 1358 matching lines @@
             'tools/dump_cache/url_to_filename_encoder.cc',
             'tools/dump_cache/url_to_filename_encoder.h',
             'tools/dump_cache/url_utilities.h',
             'tools/dump_cache/url_utilities.cc',
           ],
         },
       ],
     }],
   ],
 }