Return chrome-proxy-ect header code (post M59 branch)

components/data_reduction_proxy/core/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_CORE_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_
 #define COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 50 matching lines @@
   // ignored if |mark_proxies_as_bad| is false.
   base::TimeDelta bypass_duration;
 
   // The bypass action specified by the data reduction proxy.
   DataReductionProxyBypassAction bypass_action;
 };
 
 // Gets the header used for data reduction proxy requests and responses.
 const char* chrome_proxy_header();
 
+// Gets the chrome-proxy-ect request header that includes the effective
+// connection type.
+const char* chrome_proxy_ect_header();
+
 // Gets the ChromeProxyAcceptTransform header name.
 const char* chrome_proxy_accept_transform_header();
 
 // Gets the ChromeProxyContentTransform header name.
 const char* chrome_proxy_content_transform_header();
 
 // Gets the directive used by data reduction proxy Lo-Fi requests and
 // responses.
 const char* empty_image_directive();
 
@@ skipping 95 matching lines @@
     const net::HttpResponseHeaders* headers,
     std::string* content_length_fingerprint);
 
 // Returns values of the Chrome-Proxy header, but with its fingerprint removed.
 void GetDataReductionProxyHeaderWithFingerprintRemoved(
     const net::HttpResponseHeaders* headers,
     std::vector<std::string>* values);
 
 }  // namespace data_reduction_proxy
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_COMMON_DATA_REDUCTION_PROXY_HEADERS_H_