Update the position of autocomplete list after the model is updated.

ui/file_manager/file_manager/foreground/js/file_manager.js

Index: ui/file_manager/file_manager/foreground/js/file_manager.js
diff --git a/ui/file_manager/file_manager/foreground/js/file_manager.js b/ui/file_manager/file_manager/foreground/js/file_manager.js
index 3ac1db6e7c3c915c9d45f9c9fb964f409bf47289..ea2517eb80fecff296ccc4e398cd4e1e0c215439 100644
--- a/ui/file_manager/file_manager/foreground/js/file_manager.js
+++ b/ui/file_manager/file_manager/foreground/js/file_manager.js
@@ -3549,10 +3549,6 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
     if (this.autocompleteSuggestionsBusy_)
       return;
 
-    // The autocomplete list should be resized and repositioned here as the
-    // search box is resized when it's focused.
-    this.autocompleteList_.syncWidthAndPositionToInput();
-
     if (!query) {
       this.autocompleteList_.suggestions = [];
       return;
@@ -3566,6 +3562,10 @@ var BOTTOM_MARGIN_FOR_PREVIEW_PANEL_PX = 52;
       // Updates only the head item to prevent a flickering on typing.
       this.autocompleteList_.dataModel.splice(0, 1, headerItem);
 
+    // The autocomplete list should be resized and repositioned here as the
+    // search box is resized when it's focused.
+    this.autocompleteList_.syncWidthAndPositionToInput();
+
     this.autocompleteSuggestionsBusy_ = true;
 
     var searchParams = {