Update from https://crrev.com/305340

net/base/network_delegate.cc

 // Copyright (c) 2012 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.
 
 #include "net/base/network_delegate.h"
 
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
@@ skipping 321 matching lines @@
 bool NetworkDelegate::OnCanThrottleRequest(const URLRequest& request) const {
   return false;
 }
 
 bool NetworkDelegate::OnCanEnablePrivacyMode(
     const GURL& url,
     const GURL& first_party_for_cookies) const {
   return false;
 }
 
-int NetworkDelegate::OnBeforeSocketStreamConnect(
-    SocketStream* socket,
-    const CompletionCallback& callback) {
-  return OK;
-}
-
 bool NetworkDelegate::OnCancelURLRequestWithPolicyViolatingReferrerHeader(
     const URLRequest& request,
     const GURL& target_url,
     const GURL& referrer_url) const {
   return false;
 }
 
 }  // namespace net