[DevTools] Fix Dialog's close button to properly close dialog.

third_party/WebKit/Source/devtools/front_end/perf_ui/FilmStripView.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 /**
  * @unrestricted
  */
 PerfUI.FilmStripView = class extends UI.HBox {
   constructor() {
     super(true);
     this.registerRequiredCSS('perf_ui/filmStripView.css');
@@ skipping 223 matching lines @@
 
     this.contentElement.addEventListener('keydown', this._keyDown.bind(this), false);
     this.setDefaultFocusedElement(this.contentElement);
     this._render();
   }
 
   _resize() {
     if (!this._dialog) {
       this._dialog = new UI.Dialog();
       this.show(this._dialog.contentElement);
-      this._dialog.showDialog();
+      this._dialog.show();
     }
     this._dialog.setSizeBehavior(UI.GlassPane.SizeBehavior.MeasureContent);
   }
 
   /**
    * @param {!Event} event
    */
   _keyDown(event) {
     switch (event.key) {
       case 'ArrowLeft':
@@ skipping 46 matching lines @@
    * @return {!Promise<undefined>}
    */
   _render() {
     var frame = this._frames[this._index];
     this._timeLabel.textContent = Number.millisToString(frame.timestamp - this._zeroTime);
     return frame.imageDataPromise()
         .then(PerfUI.FilmStripView._setImageData.bind(null, this._imageElement))
         .then(this._resize.bind(this));
   }
 };