DevTools: Overlay scrollbars block the console readline

third_party/WebKit/Source/devtools/front_end/console/ConsoleViewport.js

 /*
  * Copyright (C) 2013 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 19 matching lines @@
 
 /**
  * @unrestricted
  */
 Console.ConsoleViewport = class {
   /**
    * @param {!Console.ConsoleViewportProvider} provider
    */
   constructor(provider) {
     this.element = createElement('div');
-    this.element.style.overflow = 'auto';
     this._topGapElement = this.element.createChild('div');
     this._topGapElement.style.height = '0px';
     this._topGapElement.style.color = 'transparent';
     this._contentElement = this.element.createChild('div');
     this._bottomGapElement = this.element.createChild('div');
     this._bottomGapElement.style.height = '0px';
     this._bottomGapElement.style.color = 'transparent';
 
     // Text content needed for range intersection checks in _updateSelectionModel.
     // Use Unicode ZERO WIDTH NO-BREAK SPACE, which avoids contributing any height to the element's layout overflow.
@@ skipping 555 matching lines @@
 Console.ConsoleViewportElement.prototype = {
   willHide() {},
 
   wasShown() {},
 
   /**
    * @return {!Element}
    */
   element() {},
 };