Added chrome-side support for link rel=preconnect

components/network_hints.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.
 
 {
   'targets': [
     {
       # GN version: //components/network_hints/common
       'target_name': 'network_hints_common',
       'type': 'static_library',
@@ skipping 44 matching lines @@
             '../content/content.gyp:content_renderer',
             '../third_party/WebKit/public/blink.gyp:blink',
           ],
           'sources': [
             'network_hints/renderer/dns_prefetch_queue.cc',
             'network_hints/renderer/dns_prefetch_queue.h',
             'network_hints/renderer/prescient_networking_dispatcher.cc',
             'network_hints/renderer/prescient_networking_dispatcher.h',
             'network_hints/renderer/renderer_dns_prefetch.cc',
             'network_hints/renderer/renderer_dns_prefetch.h',
+            'network_hints/renderer/renderer_preconnect.cc',
+            'network_hints/renderer/renderer_preconnect.h',
           ],
         },
       ],
     }],
   ],
 }