DevTools: Fix timeline overview flickering

third_party/WebKit/Source/devtools/front_end/ui/Dialog.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 UI.Dialog = class extends UI.GlassPane {
   constructor() {
     super();
     this.registerRequiredCSS('ui/dialog.css');
     this.contentElement.tabIndex = 0;
     this.contentElement.addEventListener('focus', () => this.widget().focus(), false);
     this.contentElement.addEventListener('keydown', this._onKeyDown.bind(this), false);
-    this.setBlockPointerEvents(true);
     this.setSetOutsideClickCallback(event => {
       this.hide();
       event.consume(true);
     });
     /** @type {!Map<!HTMLElement, number>} */
     this._tabIndexMap = new Map();
     /** @type {?UI.WidgetFocusRestorer} */
     this._focusRestorer = null;
   }
 
@@ skipping 61 matching lines @@
   /**
    * @param {!Event} event
    */
   _onKeyDown(event) {
     if (event.keyCode === UI.KeyboardShortcut.Keys.Esc.code) {
       event.consume(true);
       this.hide();
     }
   }
 };