Update from https://crrev.com/307664

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 224 matching lines @@
     const GURL& referrer_url) const {
   DCHECK(CalledOnValidThread());
   // TODO(vadimt): Remove ScopedTracker below once crbug.com/423948 is fixed.
   tracked_objects::ScopedTracker tracking_profile(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "423948 NetworkDelegate::OnCancelURLRequestWithPolicy..."));
   return OnCancelURLRequestWithPolicyViolatingReferrerHeader(
       request, target_url, referrer_url);
 }
 
-int NetworkDelegate::OnBeforeURLRequest(URLRequest* request,
-                                        const CompletionCallback& callback,
-                                        GURL* new_url) {
-  return OK;
-}
-
-void NetworkDelegate::OnResolveProxy(
-    const GURL& url,
-    int load_flags,
-    const ProxyService& proxy_service,
-    ProxyInfo* result) {
-}
-
-void NetworkDelegate::OnProxyFallback(const ProxyServer& bad_proxy,
-                                      int net_error) {
-}
-
-int NetworkDelegate::OnBeforeSendHeaders(URLRequest* request,
-                                         const CompletionCallback& callback,
-                                         HttpRequestHeaders* headers) {
-  return OK;
-}
-
-void NetworkDelegate::OnBeforeSendProxyHeaders(
-    URLRequest* request,
-    const ProxyInfo& proxy_info,
-    HttpRequestHeaders* headers) {
-}
-
-void NetworkDelegate::OnSendHeaders(URLRequest* request,
-                                    const HttpRequestHeaders& headers) {
-}
-
-int NetworkDelegate::OnHeadersReceived(
-    URLRequest* request,
-    const CompletionCallback& callback,
-    const HttpResponseHeaders* original_response_headers,
-    scoped_refptr<HttpResponseHeaders>* override_response_headers,
-    GURL* allowed_unsafe_redirect_url) {
-  return OK;
-}
-
-void NetworkDelegate::OnBeforeRedirect(URLRequest* request,
-                                       const GURL& new_location) {
-}
-
-void NetworkDelegate::OnResponseStarted(URLRequest* request) {
-}
-
-void NetworkDelegate::OnRawBytesRead(const URLRequest& request,
-                                     int bytes_read) {
-}
-
-void NetworkDelegate::OnCompleted(URLRequest* request, bool started) {
-}
-
-void NetworkDelegate::OnURLRequestDestroyed(URLRequest* request) {
-}
-
-void NetworkDelegate::OnPACScriptError(int line_number,
-                                       const base::string16& error) {
-}
-
-NetworkDelegate::AuthRequiredResponse NetworkDelegate::OnAuthRequired(
-    URLRequest* request,
-    const AuthChallengeInfo& auth_info,
-    const AuthCallback& callback,
-    AuthCredentials* credentials) {
-  return AUTH_REQUIRED_RESPONSE_NO_ACTION;
-}
-
-bool NetworkDelegate::OnCanGetCookies(const URLRequest& request,
-                                      const CookieList& cookie_list)  {
-  return true;
-}
-
-bool NetworkDelegate::OnCanSetCookie(const URLRequest& request,
-                                     const std::string& cookie_line,
-                                     CookieOptions* options) {
-  return true;
-}
-
-bool NetworkDelegate::OnCanAccessFile(const URLRequest& request,
-                                      const base::FilePath& path) const  {
-  return false;
-}
-
-bool NetworkDelegate::OnCanThrottleRequest(const URLRequest& request) const {
-  return false;
-}
-
-bool NetworkDelegate::OnCanEnablePrivacyMode(
-    const GURL& url,
-    const GURL& first_party_for_cookies) const {
-  return false;
-}
-
-bool NetworkDelegate::OnCancelURLRequestWithPolicyViolatingReferrerHeader(
-    const URLRequest& request,
-    const GURL& target_url,
-    const GURL& referrer_url) const {
-  return false;
-}
-
 }  // namespace net