[FileBrowser] Fixed default action context menu item

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager.js b/chrome/browser/resources/file_manager/js/file_manager.js
index c610e4520e0e4453b96911b242b5ecd4d4bf066b..ccae65877ea6ef5c633a6c2b8a5b3e08ed2b8ad8 100644
--- a/chrome/browser/resources/file_manager/js/file_manager.js
+++ b/chrome/browser/resources/file_manager/js/file_manager.js
@@ -4183,24 +4183,35 @@ FileManager.prototype = {
                 str('GDATA_FAILED_SPACE_INFO');
           }
         }.bind(this));
-  }
+  };
 
   /**
    * Updates default action menu item to match passed taskItem(icon,
    * label and action).
    * @param {Object} taskItem - taskItem to match.
    */
-  FileManager.prototype.setDefaultActionMenuItem = function(taskItem) {
-    if (taskItem) {
-      this.defaultActionMenuItem_.iconUrl = taskItem.iconUrl;
-      this.defaultActionMenuItem_.label = taskItem.title;
-      this.defaultActionMenuItem_.taskId = taskItem.taskId;
+  FileManager.prototype.setDefaultActionMenuItem = function(defaultItem) {
+    if (defaultItem) {
+
+      if (defaultItem.iconType) {
+        this.defaultActionMenuItem_.style.backgroundImage = '';
+        this.defaultActionMenuItem_.setAttribute('file-type-icon',
+                                                 defaultItem.iconType);
+      } else if (defaultItem.iconUrl) {
+        this.defaultActionMenuItem_.style.backgroundImage =
+            'url(' + defaultItem.iconUrl + ')';
+      } else {
+        this.defaultActionMenuItem_.style.backgroundImage = '';
+      }
+
+      this.defaultActionMenuItem_.label = defaultItem.title;
+      this.defaultActionMenuItem_.taskId = defaultItem.taskId;
     }
 
     var defaultActionSeparator =
         this.dialogDom_.querySelector('#default-action-separator');
 
-    this.defaultActionMenuItem_.hidden = !taskItem;
-    defaultActionSeparator.hidden = !taskItem;
-  }
+    this.defaultActionMenuItem_.hidden = !defaultItem;
+    defaultActionSeparator.hidden = !defaultItem;
+  };
 })();