Bypassed Bytes UMAs

components/data_reduction_proxy/common/data_reduction_proxy_headers.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/common/data_reduction_proxy_headers.h"
 
 #include <string>
 
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
@@ skipping 96 matching lines @@
 const int kMediumBypassMaxSeconds = 300;
 net::ProxyService::DataReductionProxyBypassType
 GetDataReductionProxyBypassType(
     const net::HttpResponseHeaders* headers,
     DataReductionProxyInfo* data_reduction_proxy_info) {
   DCHECK(data_reduction_proxy_info);
   if (GetDataReductionProxyInfo(headers, data_reduction_proxy_info)) {
     // A chrome-proxy response header is only present in a 502. For proper
     // reporting, this check must come before the 5xx checks below.
     const TimeDelta& duration = data_reduction_proxy_info->bypass_duration;
+    // bypass=0 means bypass for a random duration between 1 to 5 minutes
+    if (duration == TimeDelta())
+      return ProxyService::MEDIUM_BYPASS;
     if (duration <= TimeDelta::FromSeconds(kShortBypassMaxSeconds))
       return ProxyService::SHORT_BYPASS;
     if (duration <= TimeDelta::FromSeconds(kMediumBypassMaxSeconds))
       return ProxyService::MEDIUM_BYPASS;
     return ProxyService::LONG_BYPASS;
   }
   // Fall back if a 500, 502 or 503 is returned.
   if (headers->response_code() == net::HTTP_INTERNAL_SERVER_ERROR)
     return ProxyService::STATUS_500_HTTP_INTERNAL_SERVER_ERROR;
   if (headers->response_code() == net::HTTP_BAD_GATEWAY)
@@ skipping 19 matching lines @@
         headers->response_code() < net::HTTP_INTERNAL_SERVER_ERROR) {
       return ProxyService::MISSING_VIA_HEADER_4XX;
     }
     return ProxyService::MISSING_VIA_HEADER_OTHER;
   }
   // There is no bypass event.
   return ProxyService::BYPASS_EVENT_TYPE_MAX;
 }
 
 }  // namespace data_reduction_proxy