Video Player: Don't show the loop message in unexpected timing

ui/file_manager/video_player/js/media_controls.js

Index: ui/file_manager/video_player/js/media_controls.js
diff --git a/ui/file_manager/video_player/js/media_controls.js b/ui/file_manager/video_player/js/media_controls.js
index 8d63495b2e60d3e47deef5da9cfb806d94d8ee51..3623772015fdd357c7d99e138ba1be5f05690c85 100644
--- a/ui/file_manager/video_player/js/media_controls.js
+++ b/ui/file_manager/video_player/js/media_controls.js
@@ -1028,7 +1028,15 @@ VideoControls.prototype.showIconFeedback_ = function() {
 VideoControls.prototype.showTextBanner_ = function(identifier) {
   this.textBanner_.removeAttribute('visible');
   this.textBanner_.textContent = this.stringFunction_(identifier);
+
   setTimeout(function() {
+    var onAnimationEnd = function(event) {
+      this.textBanner_.removeEventListener(
+          'webkitAnimationEnd', onAnimationEnd);
+      this.textBanner_.removeAttribute('visible');
+    }.bind(this);
+    this.textBanner_.addEventListener('webkitAnimationEnd', onAnimationEnd);
+
     this.textBanner_.setAttribute('visible', 'true');
   }.bind(this), 0);
 };