Chrome Participated Tamper Detect

components/data_reduction_proxy/common/data_reduction_proxy_headers.h

 // 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.
 
 #ifndef COMPONENTS_DATA_REDUCTION_PROXY_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_
 #define COMPONENTS_DATA_REDUCTION_PROXY_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "net/http/http_response_headers.h"
 #include "net/proxy/proxy_service.h"
 
 namespace data_reduction_proxy {
 
+// Data Reduction Proxy's Via header tag.
+extern const char* kDataReductionProxyViaValues[];
+
 // Contains instructions contained in the Chrome-Proxy header.
 struct DataReductionProxyInfo {
   DataReductionProxyInfo() : bypass_all(false) {}
 
   // True if Chrome should bypass all available data reduction proxies. False
   // if only the currently connected data reduction proxy should be bypassed.
   bool bypass_all;
 
   // Amount of time to bypass the data reduction proxy or proxies.
   base::TimeDelta bypass_duration;
@@ skipping 23 matching lines @@
 
 // Searches for the specified Chrome-Proxy action, and if present interprets
 // its value as a duration in seconds.
 bool GetDataReductionProxyBypassDuration(
     const net::HttpResponseHeaders* headers,
     const std::string& action_prefix,
     base::TimeDelta* duration);
 
 }  // namespace data_reduction_proxy
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_