Adds methods to abstraction LargeContainer which are used by LargeVideo when updating video.

modules/UI/videolayout/LargeContainer.js

@@ -38,4 +38,20 @@ export default class LargeContainer {
      */
     onHoverOut (e) {
     }
+
+    /**
+     * Update video stream.
+     * @param {JitsiTrack?} stream new stream
+     * @param {string} videoType video type
+     */
+    setStream (stream, videoType) {
+    }
+
+    /**
+     * Show or hide user avatar.
+     * @param {boolean} show
+     */
+    showAvatar (show) {
+    }
+
 }