Added support for 'Chrome-Proxy: block-once' header

components/data_reduction_proxy/browser/data_reduction_proxy_protocol.cc

 // 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.
 
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_protocol.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_params.h"
 #include "components/data_reduction_proxy/browser/data_reduction_proxy_tamper_detection.h"
@@ skipping 72 matching lines @@
   const net::ProxyRetryInfoMap& proxy_retry_info =
       request->context()->proxy_service()->proxy_retry_info();
   if (proxy_retry_info.find(proxy_server.ToURI()) == proxy_retry_info.end()) {
     DataReductionProxyUsageStats::RecordDataReductionProxyBypassInfo(
         !data_reduction_proxy_type_info.proxy_servers.second.is_empty(),
         data_reduction_proxy_info.bypass_all,
         proxy_server,
         bypass_type);
   }
 
-  MarkProxiesAsBadUntil(request,
-                        data_reduction_proxy_info.bypass_duration,
-                        data_reduction_proxy_info.bypass_all,
-                        data_reduction_proxy_type_info.proxy_servers);
+  if (data_reduction_proxy_info.mark_proxies_as_bad) {
+    MarkProxiesAsBadUntil(request,
+                          data_reduction_proxy_info.bypass_duration,
+                          data_reduction_proxy_info.bypass_all,
+                          data_reduction_proxy_type_info.proxy_servers);
+  }
 
   // Only retry idempotent methods.
   if (!IsRequestIdempotent(request))
     return false;
 
   OverrideResponseAsRedirect(request,
                              original_response_headers,
                              override_response_headers);
   return true;
 }
@@ skipping 72 matching lines @@
   net::ProxyService* proxy_service = request->context()->proxy_service();
   DCHECK(proxy_service);
 
   proxy_service->MarkProxiesAsBadUntil(proxy_info,
                                        bypass_duration,
                                        fallback,
                                        request->net_log());
 }
 
 }  // namespace data_reduction_proxy