Support for providing media stream audio track to speech recognition

Source/web/SpeechRecognitionClientProxy.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *  * Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *  * Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
 #define SpeechRecognitionClientProxy_h
 
 #include "modules/speech/SpeechRecognitionClient.h"
 #include "public/web/WebSpeechRecognizerClient.h"
 #include "wtf/Compiler.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
+class MediaStreamTrack;
+class WebMediaStreamTrack;
 class WebSpeechRecognizer;
 class WebString;
 
 class SpeechRecognitionClientProxy FINAL : public blink::SpeechRecognitionClient, public WebSpeechRecognizerClient {
 public:
     virtual ~SpeechRecognitionClientProxy();
 
     // Constructing a proxy object with a 0 WebSpeechRecognizer is safe in
     // itself, but attempting to call start/stop/abort on it will crash.
     static PassOwnPtr<SpeechRecognitionClientProxy> create(WebSpeechRecognizer*);
 
     // blink::SpeechRecognitionClient:
+    virtual void setAudioTrack(blink::SpeechRecognition*, MediaStreamTrack*) OVERRIDE;
+    virtual void clearAudioTrack(blink::SpeechRecognition*) OVERRIDE;
     virtual void start(blink::SpeechRecognition*, const blink::SpeechGrammarList*, const String& lang, bool continuous, bool interimResults, unsigned long maxAlternatives) OVERRIDE;
     virtual void stop(blink::SpeechRecognition*) OVERRIDE;
     virtual void abort(blink::SpeechRecognition*) OVERRIDE;
 
     // WebSpeechRecognizerClient:
     virtual void didStartAudio(const WebSpeechRecognitionHandle&) OVERRIDE;
     virtual void didStartSound(const WebSpeechRecognitionHandle&) OVERRIDE;
     virtual void didEndSound(const WebSpeechRecognitionHandle&) OVERRIDE;
     virtual void didEndAudio(const WebSpeechRecognitionHandle&) OVERRIDE;
     virtual void didReceiveResults(const WebSpeechRecognitionHandle&, const WebVector<WebSpeechRecognitionResult>& newFinalResults, const WebVector<WebSpeechRecognitionResult>& currentInterimResults) OVERRIDE;
     virtual void didReceiveNoMatch(const WebSpeechRecognitionHandle&, const WebSpeechRecognitionResult&) OVERRIDE;
     virtual void didReceiveError(const WebSpeechRecognitionHandle&, const WebString& message, WebSpeechRecognizerClient::ErrorCode) OVERRIDE;
     virtual void didStart(const WebSpeechRecognitionHandle&) OVERRIDE;
     virtual void didEnd(const WebSpeechRecognitionHandle&) OVERRIDE;
 
 private:
     SpeechRecognitionClientProxy(WebSpeechRecognizer*);
 
     WebSpeechRecognizer* m_recognizer;
 };
 
 }; // namespace blink
 
 #endif // SpeechRecognitionClientProxy_h