Revert of Apply Referrer-Policy header when following redirects

net/url_request/url_request_context.h

 // Copyright (c) 2012 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.
 
 // This class represents contextual information (cookies, cache, etc.)
 // that's useful when processing resource requests.
 // The class is reference-counted so that it can be cleaned up after any
 // requests that are using it have been completed.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
@@ skipping 212 matching lines @@
   }
   void set_network_quality_estimator(
       NetworkQualityEstimator* network_quality_estimator) {
     network_quality_estimator_ = network_quality_estimator;
   }
 
   void set_enable_brotli(bool enable_brotli) { enable_brotli_ = enable_brotli; }
 
   bool enable_brotli() const { return enable_brotli_; }
 
-  void set_enable_referrer_policy_header(bool enable_referrer_policy_header) {
-    enable_referrer_policy_header_ = enable_referrer_policy_header;
-  }
-
-  bool enable_referrer_policy_header() const {
-    return enable_referrer_policy_header_;
-  }
-
  private:
   // ---------------------------------------------------------------------------
   // Important: When adding any new members below, consider whether they need to
   // be added to CopyFrom.
   // ---------------------------------------------------------------------------
 
   // Ownership for these members are not defined here. Clients should either
   // provide storage elsewhere or have a subclass take ownership.
   NetLog* net_log_;
   HostResolver* host_resolver_;
@@ skipping 19 matching lines @@
   // ---------------------------------------------------------------------------
   // Important: When adding any new members below, consider whether they need to
   // be added to CopyFrom.
   // ---------------------------------------------------------------------------
 
   std::unique_ptr<std::set<const URLRequest*>> url_requests_;
 
   // Enables Brotli Content-Encoding support.
   bool enable_brotli_;
 
-  // Enables parsing and applying the Referrer-Policy header when
-  // following redirects. TODO(estark): remove this flag once
-  // Referrer-Policy ships (https://crbug.com/619228).
-  bool enable_referrer_policy_header_;
-
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_