Update from https://crrev.com/312398

net/http/http_network_transaction.h

Index: net/http/http_network_transaction.h
diff --git a/net/http/http_network_transaction.h b/net/http/http_network_transaction.h
index 229d3971b1f37c6cfe960150841c36b848d2c15f..2c4bd93fb980a28ca38067e19688979bd0dcef57 100644
--- a/net/http/http_network_transaction.h
+++ b/net/http/http_network_transaction.h
@@ -144,6 +144,10 @@ class NET_EXPORT_PRIVATE HttpNetworkTransaction
 
   bool is_https_request() const;
 
+  // Returns true if the request is using an HTTP(S) proxy without being
+  // tunneled via the CONNECT method.
+  bool UsingHttpProxyWithoutTunnel() const;
+
   void DoCallback(int result);
   void OnIOComplete(int result);
 
@@ -176,7 +180,7 @@ class NET_EXPORT_PRIVATE HttpNetworkTransaction
   int DoDrainBodyForAuthRestart();
   int DoDrainBodyForAuthRestartComplete(int result);
 
-  void BuildRequestHeaders(bool using_proxy);
+  void BuildRequestHeaders(bool using_http_proxy_without_tunnel);
 
   // Writes a log message to help debugging in the field when we block a proxy
   // response to a CONNECT request.