DevTools: fix nowrap style in the elements panel.

Source/devtools/front_end/elements/ElementsTreeOutline.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 27 matching lines @@
  */
 WebInspector.ElementsTreeOutline = function(target, omitRootDOMNode, selectEnabled, setPseudoClassCallback)
 {
     this._target = target;
     this._domModel = target.domModel;
     var element = createElement("div");
 
     this._shadowRoot = element.createShadowRoot();
     this._shadowRoot.appendChild(WebInspector.View.createStyleElement("elements/elementsTreeOutline.css"));
 
-    var outlineDisclosureElement = this._shadowRoot.createChild("div", "component-root outline-disclosure source-code");
-    this._element = outlineDisclosureElement.createChild("ol", "elements-tree-outline");
+    var outlineDisclosureElement = this._shadowRoot.createChild("div", "component-root outline-disclosure");
+    this._element = outlineDisclosureElement.createChild("ol", "elements-tree-outline source-code");
     this._element.addEventListener("mousedown", this._onmousedown.bind(this), false);
     this._element.addEventListener("mousemove", this._onmousemove.bind(this), false);
     this._element.addEventListener("mouseleave", this._onmouseleave.bind(this), false);
     this._element.addEventListener("dragstart", this._ondragstart.bind(this), false);
     this._element.addEventListener("dragover", this._ondragover.bind(this), false);
     this._element.addEventListener("dragleave", this._ondragleave.bind(this), false);
     this._element.addEventListener("drop", this._ondrop.bind(this), false);
     this._element.addEventListener("dragend", this._ondragend.bind(this), false);
     this._element.addEventListener("keydown", this._onkeydown.bind(this), false);
     this._element.addEventListener("webkitAnimationEnd", this._onAnimationEnd.bind(this), false);
@@ skipping 46 matching lines @@
     "\u200f": "rlm",
     "\u202a": "#8234", // LRE
     "\u202b": "#8235", // RLE
     "\u202c": "#8236", // PDF
     "\u202d": "#8237", // LRO
     "\u202e": "#8238" // RLO
 }
 
 WebInspector.ElementsTreeOutline.prototype = {
     /**
+     * @param {boolean} wrap
+     */
+    setWordWrap: function(wrap)
+    {
+        this._element.classList.toggle("nowrap", !wrap);
+    },
+
+    /**
      * @param {!Event} event
      */
     _onAnimationEnd: function(event)
     {
         event.target.classList.remove("elements-tree-element-pick-node-1");
         event.target.classList.remove("elements-tree-element-pick-node-2");
     },
 
     /**
      * @param {boolean} value
@@ skipping 2822 matching lines @@
                 treeOutline.rootDOMNode = node;
                 if (!treeOutline.children[0].hasChildren)
                     treeOutline._element.classList.add("single-node");
                 treeOutline.setVisible(true);
                 treeOutline.element.treeElementForTest = treeOutline.children[0];
                 resolve(treeOutline.element);
             }
         }
     }
 }