Make original_response_headers parameter of NetworkDelegate::OnHeadersReceived const

android_webview/browser/net/aw_network_delegate.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 "android_webview/browser/net/aw_network_delegate.h"
 
 #include "android_webview/browser/aw_cookie_access_policy.h"
 #include "net/base/net_errors.h"
 #include "net/base/completion_callback.h"
 #include "net/url_request/url_request.h"
@@ skipping 20 matching lines @@
   return net::OK;
 }
 
 void AwNetworkDelegate::OnSendHeaders(net::URLRequest* request,
                                       const net::HttpRequestHeaders& headers) {
 }
 
 int AwNetworkDelegate::OnHeadersReceived(
     net::URLRequest* request,
     const net::CompletionCallback& callback,
-    net::HttpResponseHeaders* original_response_headers,
+    const net::HttpResponseHeaders* original_response_headers,
     scoped_refptr<net::HttpResponseHeaders>* override_response_headers) {
   return net::OK;
 }
 
 void AwNetworkDelegate::OnBeforeRedirect(net::URLRequest* request,
                                          const GURL& new_location) {
 }
 
 void AwNetworkDelegate::OnResponseStarted(net::URLRequest* request) {
 }
@@ skipping 48 matching lines @@
     net::SocketStream* stream,
     const net::CompletionCallback& callback) {
   return net::OK;
 }
 
 void AwNetworkDelegate::OnRequestWaitStateChange(const net::URLRequest& request,
                                                  RequestWaitState state) {
 }
 
 }  // namespace android_webview