DevTools: Fix all outstanding JavaScript style issues.

third_party/WebKit/Source/devtools/front_end/platform/DOMExtension.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 168 matching lines @@
     // This adds up a total error up to 2.
     return Math.abs(this.scrollTop + this.clientHeight - this.scrollHeight) <= 2;
 }
 
 /**
  * @param {!Node} fromNode
  * @param {!Node} toNode
  */
 function removeSubsequentNodes(fromNode, toNode)
 {
-    for (var node = fromNode; node && node !== toNode; ) {
+    for (var node = fromNode; node && node !== toNode;) {

[paulirish, 2016/04/22 09:50:50]

This is the only change I feel bad about.

         var nodeToRemove = node;
         node = node.nextSibling;
         nodeToRemove.remove();
     }
 }
 
 /**
  * @param {!Event} event
  * @return {boolean}
  */
@@ skipping 539 matching lines @@
 {
     for (var i = 0, n = arguments.length; i < n; ++i)
         this.appendChild(arguments[i]);
 }
 
 /**
  * @return {string}
  */
 Node.prototype.deepTextContent = function()
 {
-    return this.childTextNodes().map(function (node) { return node.textContent; }).join("");
+    return this.childTextNodes().map(function(node) { return node.textContent; }).join("");
 }
 
 /**
  * @return {!Array.<!Node>}
  */
 Node.prototype.childTextNodes = function()
 {
     var node = this.traverseNextTextNode(this);
     var result = [];
     var nonTextTags = { "STYLE": 1, "SCRIPT": 1 };
@@ skipping 227 matching lines @@
     {
         window.removeEventListener("DOMContentLoaded", windowLoaded, false);
         callback();
     }
 
     if (document.readyState === "complete" || document.readyState === "interactive")
         callback();
     else
         window.addEventListener("DOMContentLoaded", windowLoaded, false);
 }