Revert of Add a dummy variable to ResourceMsg_DataReceived.

content/browser/loader/resource_dispatcher_host_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 <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 1136 matching lines @@
   ASSERT_EQ(expected_error_code, error_code);
 }
 
 testing::AssertionResult ExtractDataOffsetAndLength(const IPC::Message& message,
                                                     int* data_offset,
                                                     int* data_length) {
   base::PickleIterator iter(message);
   int request_id;
   if (!IPC::ReadParam(&message, &iter, &request_id))
     return testing::AssertionFailure() << "Could not read request_id";
-  // TODO(erikchen): This dummy variable is temporary and is only intended to be
-  // present for one Canary release. http://crbug.com/527588.
-  int dummy;
-  if (!IPC::ReadParam(&message, &iter, &dummy))
-    return testing::AssertionFailure() << "Could not read dummy variable";
   if (!IPC::ReadParam(&message, &iter, data_offset))
     return testing::AssertionFailure() << "Could not read data_offset";
   if (!IPC::ReadParam(&message, &iter, data_length))
     return testing::AssertionFailure() << "Could not read data_length";
   return testing::AssertionSuccess();
 }
 
 void CheckSuccessfulRequestWithErrorCode(
     const std::vector<IPC::Message>& messages,
     const std::string& reference_data,
@@ skipping 2321 matching lines @@
   return nullptr;
 }
 
 net::URLRequestJob* TestURLRequestJobFactory::MaybeInterceptResponse(
     net::URLRequest* request,
     net::NetworkDelegate* network_delegate) const {
   return nullptr;
 }
 
 }  // namespace content