Move data reduction proxy to Chrome-Proxy header for authentication

net/http/http_transaction_test_util.cc

 // 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.
 
 #include "net/http/http_transaction_test_util.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 406 matching lines @@
     return net::OK;
 
   CallbackLater(callback, net::OK);
   return net::ERR_IO_PENDING;
 }
 
 void MockNetworkTransaction::SetBeforeNetworkStartCallback(
     const BeforeNetworkStartCallback& callback) {
 }
 
+void MockNetworkTransaction::SetBeforeProxyHeadersSentCallback(
+    const BeforeProxyHeadersSentCallback& callback) {
+}
+
 int MockNetworkTransaction::ResumeNetworkStart() {
   // Should not get here.
   return net::ERR_FAILED;
 }
 
 void MockNetworkTransaction::CallbackLater(
     const net::CompletionCallback& callback, int result) {
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&MockNetworkTransaction::RunCallback,
                             weak_factory_.GetWeakPtr(), callback, result));
@@ skipping 57 matching lines @@
 
     if (rv > 0)
       content.append(buf->data(), rv);
     else if (rv < 0)
       return rv;
   } while (rv > 0);
 
   result->swap(content);
   return net::OK;
 }