Revert of Reland #2 "ipc: Add a new field num_brokered_attachments to the message header."

content/child/threaded_data_provider.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 "content/child/threaded_data_provider.h"
 
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "components/scheduler/child/webthread_impl_for_worker_scheduler.h"
 #include "content/child/child_process.h"
@@ skipping 63 matching lines @@
   DCHECK(io_task_runner_->BelongsToCurrentThread());
 
   main_thread_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&ThreadedDataProvider::OnResourceMessageFilterAddedMainThread,
                  main_thread_resource_provider_));
 }
 
 bool DataProviderMessageFilter::OnMessageReceived(
     const IPC::Message& message) {
-  // TODO(erikchen): Temporary code to help track http://crbug.com/527588.
-  content::CheckContentsOfDataReceivedMessage(&message);
-
   DCHECK(io_task_runner_->BelongsToCurrentThread());
 
   if (message.type() != ResourceMsg_DataReceived::ID)
     return false;
 
   int request_id;
 
   base::PickleIterator iter(message);
   if (!iter.ReadInt(&request_id)) {
     NOTREACHED() << "malformed resource message";
@@ skipping 244 matching lines @@
     DCHECK(threaded_data_receiver_->needsMainthreadDataCopy());
     DCHECK_EQ((size_t)data_length, data_copy->size());
   }
 
   threaded_data_receiver_->acceptMainthreadDataNotification(
       (data_copy && !data_copy->empty()) ? &data_copy->front() : NULL,
       data_length, encoded_data_length);
 }
 
 }  // namespace content