Support for new data reduction proxy via header

chrome/browser/net/spdyproxy/data_reduction_proxy_settings.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_SETTINGS_H_
 #define CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_SETTINGS_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 107 matching lines @@
   // Returns true if a screen promoting the data reduction proxy is allowed to
   // be shown. Logic that decides when to show the promo should check its
   // availability. This would return false if not part of a separate field
   // trial that governs the use of the promotion.
   static bool IsDataReductionProxyPromoAllowed();
 
   // Returns true if preconnect advisory hinting is enabled by command line
   // flag or Finch trial.
   static bool IsPreconnectHintingAllowed();
 
-  // Returns true if the Via header indicates that this request was fetched
-  // explicitly via the Chrome Proxy.
-  static bool WasFetchedViaProxy(const net::HttpResponseHeaders* headers);
-
   // Returns the URL of the data reduction proxy.
   static std::string GetDataReductionProxyOrigin();
 
   // Returns the URL of the fallback data reduction proxy.
   static std::string GetDataReductionProxyFallback();
 
   // Returns a vector of GURLs for all configured proxies.
   static DataReductionProxyList GetDataReductionProxies();
 
   // Returns true if |auth_info| represents an authentication challenge from
@@ skipping 129 matching lines @@
   bool restricted_by_carrier_;
   bool enabled_by_user_;
 
   scoped_ptr<net::URLFetcher> fetcher_;
   BooleanPrefMember spdy_proxy_auth_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxySettings);
 };
 
 #endif  // CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROXY_SETTINGS_H_