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

content/common/resource_messages.h

 // 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.
 
 // IPC messages for resource loading.
 //
 // NOTE: All messages must send an |int request_id| as their first parameter.
 
 // Multiply-included message file, hence no include guard.
 #include "base/memory/shared_memory.h"
@@ skipping 10 matching lines @@
 
 #ifndef CONTENT_COMMON_RESOURCE_MESSAGES_H_
 #define CONTENT_COMMON_RESOURCE_MESSAGES_H_
 
 namespace net {
 struct LoadTimingInfo;
 }
 
 namespace content {
 struct ResourceDevToolsInfo;
-
-// TODO(erikchen): Temporary code to help track http://crbug.com/527588.
-// If |m| does not have type ResourceMsg_DataReceived, this method has no
-// effect. Otherwise, this method checks that the |data_offset| member is less
-// than 512kB.
-void CheckContentsOfDataReceivedMessage(const IPC::Message* m);
 }
 
 namespace IPC {
 
 template <>
 struct ParamTraits<scoped_refptr<net::HttpResponseHeaders> > {
   typedef scoped_refptr<net::HttpResponseHeaders> param_type;
   static void Write(Message* m, const param_type& p);
   static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
   static void Log(const param_type& p, std::string* l);
@@ skipping 356 matching lines @@
 
 // Sent when the renderer process deletes a resource loader.
 IPC_MESSAGE_CONTROL1(ResourceHostMsg_ReleaseDownloadedFile,
                      int /* request_id */)
 
 // Sent by the renderer when a resource request changes priority.
 IPC_MESSAGE_CONTROL3(ResourceHostMsg_DidChangePriority,
                      int /* request_id */,
                      net::RequestPriority,
                      int /* intra_priority_value */)