Remove IPC_BEGIN_MESSAGE_MAP_EX macro since r270839 made all bad IPCs kill their child processes.

content/browser/profiler_message_filter.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.
 
 #ifndef CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
 #define CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
 
 #include <string>
 
 #include "content/public/browser/browser_message_filter.h"
 
 namespace tracked_objects {
 struct ProcessDataSnapshot;
 }
 
 namespace content {
 
 // This class sends and receives profiler messages in the browser process.
 class ProfilerMessageFilter : public BrowserMessageFilter {
  public:
   explicit ProfilerMessageFilter(int process_type);
 
   // BrowserMessageFilter implementation.
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
 
   // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message,
-                                 bool* message_was_ok) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
  protected:
   virtual ~ProfilerMessageFilter();
 
  private:
   // Message handlers.
   void OnChildProfilerData(
       int sequence_number,
       const tracked_objects::ProcessDataSnapshot& profiler_data);
 
 #if defined(USE_TCMALLOC)
   void OnTcmallocStats(const std::string& output);
 #endif
 
   int process_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfilerMessageFilter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_