[Chromecast] Correct libcast_governor behavior.

chromecast/public/media/audio_post_processor_shlib.h

 // Copyright 2017 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 CHROMECAST_PUBLIC_MEDIA_AUDIO_POST_PROCESSOR_SHLIB_H_
 #define CHROMECAST_PUBLIC_MEDIA_AUDIO_POST_PROCESSOR_SHLIB_H_
 
 #include <string>
+#include <vector>
 
 #include "chromecast_export.h"
 
 namespace chromecast {
 namespace media {
 class AudioPostProcessor;
 }  // namespace media
 }  // namespace chromecast
 
 // Creates an AudioPostProcessor.
@@ skipping 45 matching lines @@
   // It should only change when SetSampleRate is called.
   virtual int GetRingingTimeInFrames() = 0;
 
   virtual ~AudioPostProcessor() = default;
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_PUBLIC_MEDIA_AUDIO_POST_PROCESSOR_SHLIB_H_