Upstream "nsurl_util.{h,mm}" from Chrome on iOS repository.

net/net.gypi

 # 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.
 
 # This file is shared between the regular GYP build, the NaCl GYP build, and
 # the GN build. For GN support, it must have no conditionals or anything like
 # that beyond the simple one-level-deep dictionary of values.
 {
   'variables': {
     # Subset of net source files that are compiled for NaCl (net_nacl target).
@@ skipping 1728 matching lines @@
       'tools/quic/test_tools/quic_server_peer.h',
       'tools/quic/test_tools/quic_test_client.cc',
       'tools/quic/test_tools/quic_test_client.h',
       'tools/quic/test_tools/quic_test_utils.cc',
       'tools/quic/test_tools/quic_test_utils.h',
       'tools/quic/test_tools/server_thread.h',
       'tools/quic/test_tools/server_thread.cc',
       'tools/quic/test_tools/simple_client.h',
       'tools/quic/test_tools/simple_client.cc',
     ],
+    'net_base_mac_ios_sources': [
+      'base/mac/url_conversions.h',
+      'base/mac/url_conversions.mm',
+    ],
+    'net_base_test_mac_ios_sources': [
+      'base/mac/url_conversions_unittest.mm',
+    ],
   }
 }