Support for providing media stream audio track to speech recognition

Source/modules/speech/SpeechRecognitionController.h

Index: Source/modules/speech/SpeechRecognitionController.h
diff --git a/Source/modules/speech/SpeechRecognitionController.h b/Source/modules/speech/SpeechRecognitionController.h
index 843d065f8ae673cff9171ddf449978fc59238a50..4f3fe36aa21e04e6b43ccaabbb915a94bbcde6bd 100644
--- a/Source/modules/speech/SpeechRecognitionController.h
+++ b/Source/modules/speech/SpeechRecognitionController.h
@@ -27,6 +27,7 @@
 #define SpeechRecognitionController_h
 
 #include "core/page/Page.h"
+#include "modules/mediastream/MediaStreamTrack.h"
 #include "modules/speech/SpeechRecognitionClient.h"
 #include "wtf/PassOwnPtr.h"
 
@@ -37,6 +38,16 @@ class SpeechRecognitionController FINAL : public NoBaseWillBeGarbageCollectedFin
 public:
     virtual ~SpeechRecognitionController();
 
+    void setAudioTrack(SpeechRecognition* recognition, MediaStreamTrack* audioTrack)
+    {
+        m_client->setAudioTrack(recognition, audioTrack);
+    }
+
+    void clearAudioTrack(SpeechRecognition* recognition)
+    {
+        m_client->clearAudioTrack(recognition);
+    }
+
     void start(SpeechRecognition* recognition, const SpeechGrammarList* grammars, const String& lang, bool continuous, bool interimResults, unsigned long maxAlternatives)
     {
         m_client->start(recognition, grammars, lang, continuous, interimResults, maxAlternatives);