Add a dummy variable to ResourceMsg_DataReceived.

content/common/resource_messages.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 "content/common/resource_messages.h"
 
 #include "base/debug/alias.h"
 #include "ipc/ipc_message.h"
 #include "net/base/load_timing_info.h"
 #include "net/http/http_response_headers.h"
 
 namespace content {
 // TODO(erikchen): Temporary code to help track http://crbug.com/527588.
 void CheckContentsOfDataReceivedMessage(const IPC::Message* message) {
   if (message->type() != ResourceMsg_DataReceived::ID)
     return;
   ResourceMsg_DataReceived::Schema::Param arg;
   bool success = ResourceMsg_DataReceived::Read(message, &arg);
   CHECK(success);
-  int data_offset = base::get<1>(arg);
+  int data_offset = base::get<2>(arg);
   CHECK_LE(data_offset, 512 * 1024);
   base::debug::Alias(&data_offset);
 }
 }
 
 namespace IPC {
 
 void ParamTraits<scoped_refptr<net::HttpResponseHeaders> >::Write(
     Message* m, const param_type& p) {
   WriteParam(m, p.get() != NULL);
@@ skipping 292 matching lines @@
   (*r)->set_identifier(identifier);
   return true;
 }
 
 void ParamTraits<scoped_refptr<content::ResourceRequestBody> >::Log(
     const param_type& p, std::string* l) {
   l->append("<ResourceRequestBody>");
 }
 
 }  // namespace IPC