Introduce ERR_NETWORK_CHANGED and allow URLFetcher to automatically retry on that error.

net/http/http_proxy_client_socket_pool.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/http/http_proxy_client_socket_pool.h"
 
 #include <algorithm>
 
 #include "base/time.h"
 #include "base/values.h"
@@ skipping 433 matching lines @@
     const std::string& group_name,
     ClientSocketHandle* handle) {
   base_.CancelRequest(group_name, handle);
 }
 
 void HttpProxyClientSocketPool::ReleaseSocket(const std::string& group_name,
                                               StreamSocket* socket, int id) {
   base_.ReleaseSocket(group_name, socket, id);
 }
 
-void HttpProxyClientSocketPool::Flush() {
-  base_.Flush();
+void HttpProxyClientSocketPool::FlushWithError(int error) {
+  base_.FlushWithError(error);
 }
 
 bool HttpProxyClientSocketPool::IsStalled() const {
   return base_.IsStalled() ||
       (transport_pool_ && transport_pool_->IsStalled()) ||
       (ssl_pool_ && ssl_pool_->IsStalled());
 }
 
 void HttpProxyClientSocketPool::CloseIdleSockets() {
   base_.CloseIdleSockets();
@@ skipping 51 matching lines @@
   return base_.histograms();
 }
 
 bool HttpProxyClientSocketPool::CloseOneIdleConnection() {
   if (base_.CloseOneIdleSocket())
     return true;
   return base_.CloseOneIdleConnectionInLayeredPool();
 }
 
 }  // namespace net