Binding media stream audio track to speech recognition [browser]

content/public/browser/speech_recognition_event_listener.h

Index: content/public/browser/speech_recognition_event_listener.h
diff --git a/content/public/browser/speech_recognition_event_listener.h b/content/public/browser/speech_recognition_event_listener.h
index 8c16f9099cf56eea5563507eeff08d9a69b2d2be..1baf053155a6913fb26680d002851d1513be9346 100644
--- a/content/public/browser/speech_recognition_event_listener.h
+++ b/content/public/browser/speech_recognition_event_listener.h
@@ -6,9 +6,15 @@
 #define CONTENT_PUBLIC_BROWSER_SPEECH_RECOGNITION_EVENT_LISTENER_H_
 
 #include "base/basictypes.h"
+#include "base/memory/shared_memory.h"
+#include "base/sync_socket.h"
 #include "content/common/content_export.h"
 #include "content/public/common/speech_recognition_result.h"
 
+namespace media {
+class AudioParameters;
+}
+
 namespace content {
 
 struct SpeechRecognitionError;
@@ -58,6 +64,12 @@ class CONTENT_EXPORT SpeechRecognitionEventListener {
   virtual void OnAudioLevelsChange(int session_id,
                                    float volume, float noise_volume) = 0;
 
+  // TODO(burnik): Make pure virtual and update the unit test.

[no longer working on chromium, 2014/10/02 11:55:40]

you can address this TODO in this CL?

[burnik, 2014/10/02 16:04:12]

Yes. This is already done. Will come along with the tests in upcoming patchsets.

+  virtual void OnAudioTrackReady(int session_id,
+                                 const media::AudioParameters& params,
+                                 base::SharedMemoryHandle memory,
+                                 base::SyncSocket::TransitDescriptor socket) {}
+
   // 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 session_id) = 0;