Bypass the DataReductionProxy for all POST requests

google_apis/gcm/engine/connection_factory_impl.cc

 // Copyright (c) 2013 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 "google_apis/gcm/engine/connection_factory_impl.h"
 
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/profiler/scoped_tracker.h"
@@ skipping 289 matching lines @@
 
   // TODO(zea): if the network is offline, don't attempt to connect.
   // See crbug.com/396687
 
   connecting_ = true;
   GURL current_endpoint = GetCurrentEndpoint();
   recorder_->RecordConnectionInitiated(current_endpoint.host());
   RebuildNetworkSessionAuthCache();
   int status = gcm_network_session_->proxy_service()->ResolveProxy(
       current_endpoint,
+      std::string(),

[bengr, 2016/02/26 23:43:33]

#include <string>

       net::LOAD_NORMAL,
       &proxy_info_,
       base::Bind(&ConnectionFactoryImpl::OnProxyResolveDone,
                  weak_ptr_factory_.GetWeakPtr()),
       &pac_request_,
       NULL,
       bound_net_log_);
   if (status != net::ERR_IO_PENDING)
     OnProxyResolveDone(status);
 }
@@ skipping 203 matching lines @@
   }
 
   net::SSLConfig ssl_config;
   gcm_network_session_->ssl_config_service()->GetSSLConfig(&ssl_config);
   if (proxy_info_.is_https() && ssl_config.send_client_cert) {
     gcm_network_session_->ssl_client_auth_cache()->Remove(
         proxy_info_.proxy_server().host_port_pair());
   }
 
   int status = gcm_network_session_->proxy_service()->ReconsiderProxyAfterError(
-      GetCurrentEndpoint(), net::LOAD_NORMAL, error, &proxy_info_,
+      GetCurrentEndpoint(),
+      std::string(), net::LOAD_NORMAL, error, &proxy_info_,
       base::Bind(&ConnectionFactoryImpl::OnProxyResolveDone,
                  weak_ptr_factory_.GetWeakPtr()),
       &pac_request_,
       NULL,
       bound_net_log_);
   if (status == net::OK || status == net::ERR_IO_PENDING) {
     CloseSocket();
   } else {
     // If ReconsiderProxyAfterError() failed synchronously, it means
     // there was nothing left to fall-back to, so fail the transaction
@@ skipping 31 matching lines @@
 
 void ConnectionFactoryImpl::RebuildNetworkSessionAuthCache() {
   if (!http_network_session_ || !http_network_session_->http_auth_cache())
     return;
 
   gcm_network_session_->http_auth_cache()->UpdateAllFrom(
       *http_network_session_->http_auth_cache());
 }
 
 }  // namespace gcm