media_recorder_handler: Changed deprecated ScopedVector to std::vector

content/renderer/media/media_recorder_handler.h

Index: content/renderer/media/media_recorder_handler.h
diff --git a/content/renderer/media/media_recorder_handler.h b/content/renderer/media/media_recorder_handler.h
index 8fa56c4ad4fa3c5739e06e0ecd05f3e4532aa879..8b9619c477e63cbfdc98057c093c919268037f7f 100644
--- a/content/renderer/media/media_recorder_handler.h
+++ b/content/renderer/media/media_recorder_handler.h
@@ -104,8 +104,8 @@ class CONTENT_EXPORT MediaRecorderHandler final
   // |client_| is a weak pointer, and is valid for the lifetime of this object.
   blink::WebMediaRecorderHandlerClient* client_;
 
-  ScopedVector<VideoTrackRecorder> video_recorders_;
-  ScopedVector<AudioTrackRecorder> audio_recorders_;
+  std::vector<std::unique_ptr<VideoTrackRecorder>> video_recorders_;
+  std::vector<std::unique_ptr<AudioTrackRecorder>> audio_recorders_;
 
   // Worker class doing the actual Webm Muxing work.
   std::unique_ptr<media::WebmMuxer> webm_muxer_;