Fixes undefined error and shared video.

modules/UI/shared_video/SharedVideo.js

@@ -625,7 +625,7 @@ function SharedVideoThumb (url)
     this.videoSpanId = "sharedVideoContainer";
     this.container = this.createContainer(this.videoSpanId);
     this.container.onclick = this.videoClick.bind(this);
-
+    this.bindHoverHandler();
     SmallVideo.call(this, VideoLayout);
     this.isVideoMuted = true;
 }

modules/UI/videolayout/SmallVideo.js

@@ -471,7 +471,8 @@ SmallVideo.prototype.selectDisplayMode = function() {
  */
 SmallVideo.prototype._isHovered = function () {
     return this.videoIsHovered
-        || this.connectionIndicator.popover.popoverIsHovered;
+        || (this.connectionIndicator
+            && this.connectionIndicator.popover.popoverIsHovered);
 };
 
 /**