Refactoring of chrome speech recognition architecture (CL1.3)

content/public/browser/speech_recognition_event_listener.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_PUBLIC_BROWSER_SPEECH_RECOGNITION_EVENT_LISTENER_H_
 #define CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_EVENT_LISTENER_H_
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
-#include "content/public/common/speech_recognition_result.h"
 
 namespace content {
 
+struct SpeechRecognitionError;
+struct SpeechRecognitionResult;
+
 // The interface to be implemented by consumers interested in receiving
 // speech recognition events.
 class CONTENT_EXPORT SpeechRecognitionEventListener {
  public:
   // Invoked when the StartRequest is received and the recognition process is
   // started.
   virtual void OnRecognitionStart(int caller_id_id) = 0;
 
   // Invoked when the first audio capture is initiated.
   virtual void OnAudioStart(int caller_id) = 0;
@@ skipping 15 matching lines @@
   virtual void OnAudioEnd(int caller_id) = 0;
 
   // Invoked when a result is retrieved.
   virtual void OnRecognitionResult(int caller_id,
                                    const SpeechRecognitionResult& result) = 0;
 
   // Invoked if there was an error while capturing or recognizing audio.
   // The recognition has already been cancelled when this call is made and
   // no more events will be raised.
   virtual void OnRecognitionError(int caller_id,
-                                  const SpeechRecognitionErrorCode& error) = 0;
+                                  const SpeechRecognitionError& error) = 0;
 
   // Informs of a change in the captured audio level, useful if displaying
   // a microphone volume indicator while recording.
   // The value of |volume| and |noise_volume| is in the [0.0, 1.0] range.
   virtual void OnAudioLevelsChange(int caller_id, float volume,
                                    float noise_volume) = 0;
 
   // This is guaranteed to be the last event raised in the recognition
   // process and the |SpeechRecognizer| object can be freed if necessary.
   virtual void OnRecognitionEnd(int caller_id) = 0;
 
 protected:
   virtual ~SpeechRecognitionEventListener() { }
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_EVENT_LISTENER_H_