Quick View: Added Genre, Track and Duration metadata.

ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js

Index: ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js
diff --git a/ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js b/ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js
index 0234b7683234e25baabdb2d4e222a520e108d8c6..7e3fc43e8f0628759e5a83678c53f7c7845412e5 100644
--- a/ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js
+++ b/ui/file_manager/file_manager/foreground/js/metadata/metadata_item.js
@@ -174,12 +174,28 @@ function MetadataItem() {
   /**
    * @public {string|undefined}
    */
-  this.mediaTitle;
+  this.mediaArtist;
+
+  /**
+   * Audio or video duration in seconds.
+   * @public {number|undefined}
+   */
+  this.mediaDuration;
 
   /**
    * @public {string|undefined}
    */
-  this.mediaArtist;
+  this.mediaGenre;
+
+  /**
+   * @public {string|undefined}
+   */
+  this.mediaTitle;
+
+  /**
+   * @public {number|undefined}
+   */
+  this.mediaTrack;
 
   /**
    * Mime type obtained by content provider based on URL.