Adding opt out and previews type information to DRP pingback

components/data_reduction_proxy/core/browser/data_reduction_proxy_network_delegate.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_BROWSER_DATA_REDUCTION_PROXY_NETWORK_DELEGATE_H_
 #define COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DATA_REDUCTION_PROXY_NETWORK_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 97 matching lines @@
   // DataReductionProxyData from the URLRequest.
   void OnBeforeRedirectInternal(net::URLRequest* request,
                                 const GURL& new_location) override;
 
   // Indicates that the URL request has been completed or failed.
   // |started| indicates whether the request has been started. If false,
   // some information like the socket address is not available.
   void OnCompletedInternal(net::URLRequest* request,
                            bool started) override;
 
+  // Checks if a LoFi or Lite Pages response was received and sets the state on
+  // DataReductionProxyData for |request|.
+  void OnHeadersReceivedInternal(
+      net::URLRequest* request,
+      const net::CompletionCallback& callback,
+      const net::HttpResponseHeaders* original_response_headers,
+      scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
+      GURL* allowed_unsafe_redirect_url) override;
+
   // Calculates actual data usage that went over the network at the HTTP layer
   // (e.g. not including network layer overhead) and estimates original data
   // usage for |request|.
   void CalculateAndRecordDataUsage(const net::URLRequest& request,
                                    DataReductionProxyRequestType request_type);
 
   // Posts to the UI thread to UpdateContentLengthPrefs in the data reduction
   // proxy metrics and updates |received_content_length_| and
   // |original_content_length_|.
   void AccumulateDataUsage(int64_t data_used,
@@ skipping 53 matching lines @@
 
   std::unique_ptr<DataUseGroupProvider> data_use_group_provider_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(DataReductionProxyNetworkDelegate);
 };
 }  // namespace data_reduction_proxy
 
 #endif  // COMPONENTS_DATA_REDUCTION_PROXY_CORE_BROWSER_DATA_REDUCTION_PROXY_NETWORK_DELEGATE_H_