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

content/browser/speech/speech_recognition_dispatcher_host.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_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
@@ skipping 35 matching lines @@
       int session_id,
       const SpeechRecognitionResults& results) OVERRIDE;
   virtual void OnRecognitionError(
       int session_id,
       const SpeechRecognitionError& error) OVERRIDE;
   virtual void OnAudioLevelsChange(int session_id,
                                    float volume,
                                    float noise_volume) OVERRIDE;
 
   // BrowserMessageFilter implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message,
-                                 bool* message_was_ok) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void OverrideThreadForMessage(
       const IPC::Message& message,
       BrowserThread::ID* thread) OVERRIDE;
 
   virtual void OnChannelClosing() OVERRIDE;
 
  private:
   virtual ~SpeechRecognitionDispatcherHost();
 
   void OnStartRequest(
@@ skipping 14 matching lines @@
   // about this class being destroyed in the meanwhile (due to browser shutdown)
   // since tasks pending on a destroyed WeakPtr are automatically discarded.
   base::WeakPtrFactory<SpeechRecognitionDispatcherHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SpeechRecognitionDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SPEECH_SPEECH_RECOGNITION_DISPATCHER_HOST_H_