DevTools: disable input event processing while auditing with lighthouse.

third_party/WebKit/Source/devtools/front_end/audits2/Audits2Panel.js

 // Copyright (c) 2016 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
  */
 Audits2.Audits2Panel = class extends UI.PanelWithSidebar {
   constructor() {
     super('audits2');
@@ skipping 386 matching lines @@
     /** @type {?function(string)} */
     this._status = null;
   }
 
   /**
    * @return {!Promise<undefined>}
    */
   attach() {
     return SDK.targetManager.interceptMainConnection(this._dispatchProtocolMessage.bind(this)).then(rawConnection => {
       this._rawConnection = rawConnection;
+      this._rawConnection.sendMessage(
+          JSON.stringify({id: 0, method: 'Input.setIgnoreInputEvents', params: {ignore: true}}));
     });
   }
 
   /**
    * @param {string} inspectedURL
    * @param {!Array<string>} categoryIDs
    * @return {!Promise<!ReportRenderer.ReportJSON>}
    */
   startLighthouse(inspectedURL, categoryIDs) {
     return this._send('start', {url: inspectedURL, categoryIDs});
@@ skipping 302 matching lines @@
           return;
 
         var element = Components.DOMPresentationUtils.linkifyNodeReference(node, undefined, detailsItem.snippet);
         origElement.title = '';
         origElement.textContent = '';
         origElement.appendChild(element);
       });
     });
   }
 };