Make original_response_headers parameter of NetworkDelegate::OnHeadersReceived const

net/url_request/url_request_unittest.cc

 // 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.
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shlobj.h>
 #endif
@@ skipping 220 matching lines @@
                                  const CompletionCallback& callback,
                                  GURL* new_url) OVERRIDE;
 
   virtual int OnBeforeSendHeaders(URLRequest* request,
                                   const CompletionCallback& callback,
                                   HttpRequestHeaders* headers) OVERRIDE;
 
   virtual int OnHeadersReceived(
       URLRequest* request,
       const CompletionCallback& callback,
-      HttpResponseHeaders* original_response_headers,
+      const HttpResponseHeaders* original_response_headers,
       scoped_refptr<HttpResponseHeaders>* override_response_headers) OVERRIDE;
 
   virtual NetworkDelegate::AuthRequiredResponse OnAuthRequired(
       URLRequest* request,
       const AuthChallengeInfo& auth_info,
       const AuthCallback& callback,
       AuthCredentials* credentials) OVERRIDE;
 
   // Resets the callbacks and |stage_blocked_for_callback_|.
   void Reset();
@@ skipping 94 matching lines @@
     const CompletionCallback& callback,
     HttpRequestHeaders* headers) {
   TestNetworkDelegate::OnBeforeSendHeaders(request, callback, headers);
 
   return MaybeBlockStage(ON_BEFORE_SEND_HEADERS, callback);
 }
 
 int BlockingNetworkDelegate::OnHeadersReceived(
     URLRequest* request,
     const CompletionCallback& callback,
-    HttpResponseHeaders* original_response_headers,
+    const HttpResponseHeaders* original_response_headers,
     scoped_refptr<HttpResponseHeaders>* override_response_headers) {
   TestNetworkDelegate::OnHeadersReceived(
       request, callback, original_response_headers,
       override_response_headers);
 
   return MaybeBlockStage(ON_HEADERS_RECEIVED, callback);
 }
 
 NetworkDelegate::AuthRequiredResponse BlockingNetworkDelegate::OnAuthRequired(
     URLRequest* request,
@@ skipping 4466 matching lines @@
 
     EXPECT_FALSE(r.is_pending());
     EXPECT_EQ(1, d->response_started_count());
     EXPECT_FALSE(d->received_data_before_response());
     EXPECT_EQ(d->bytes_received(), static_cast<int>(file_size));
   }
 }
 #endif  // !defined(DISABLE_FTP_SUPPORT)
 
 }  // namespace net