[DevTools] Rework some focus code.

third_party/WebKit/Source/devtools/front_end/externs.js

 /*
  * Copyright (C) 2011 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 24 matching lines @@
  * @param {!Function} callback
  */
 Object.observe = function(object, callback) {}
 
 /** @type {boolean} */
 Event.prototype.isMetaOrCtrlForTest;
 
 /** @type {string} */
 Event.prototype.code;
 
+/** @type {boolean} */
+Node.prototype.isConnected;

[pfeldman, 2016/09/30 22:29:03]

Firefox:
No public signals
Edge:
No public signals
Safari:
No public signals

[dgozman, 2016/09/30 23:28:24]

Removed for now :-)

+
 /**
  * TODO(luoe): MouseEvent properties movementX and movementY from the
  * PointerLock API are not yet standard. Once they are included in
  * Closure Compiler, these custom externs can be removed.
  */
 /** @type {number} */
 MouseEvent.prototype.movementX;
 
 /** @type {number} */
 MouseEvent.prototype.movementY;
@@ skipping 714 matching lines @@
     /** @type {(string|!Array<!Gonzales.Node>)} */
     this.content;
 }
 
 /**
  * @type {string}
  * @see http://heycam.github.io/webidl/#es-DOMException-prototype-object
  * TODO(jsbell): DOMException should be a subclass of Error.
  */
 DOMException.prototype.message;