[DevTools] Device Mode polish.

third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js

 /*
  * Copyright (C) 2009 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 316 matching lines @@
     },
 
     /**
      * @param {boolean} dimmed
      */
     setDimmed: function(dimmed)
     {
         this.element.classList.toggle("toolbar-dimmed", dimmed);
     },
 
+    addDropDownArrow: function()
+    {
+        this.element.classList.add("toolbar-has-dropdown");
+        this.element.createChild("div", "toolbar-dropdown-arrow");
+    },
+
     __proto__: WebInspector.ToolbarItem.prototype
 }
 
 /**
  * @constructor
  * @extends {WebInspector.ToolbarLabel}
  * @param {string} title
  * @param {string} glyph
  */
 WebInspector.ToolbarButton = function(title, glyph)
@@ skipping 366 matching lines @@
  * @constructor
  * @extends {WebInspector.ToolbarItem}
  * @param {?function(!Event)} changeHandler
  * @param {string=} className
  */
 WebInspector.ToolbarComboBox = function(changeHandler, className)
 {
     WebInspector.ToolbarItem.call(this, createElementWithClass("span", "toolbar-select-container"));
 
     this._selectElement = this.element.createChild("select", "toolbar-item");
-    this.element.createChild("div", "toolbar-select-arrow");
+    this.element.createChild("div", "toolbar-dropdown-arrow");
     if (changeHandler)
         this._selectElement.addEventListener("change", changeHandler, false);
     if (className)
         this._selectElement.classList.add(className);
 }
 
 WebInspector.ToolbarComboBox.prototype = {
     /**
      * @return {!HTMLSelectElement}
      */
@@ skipping 196 matching lines @@
             for (var i = 0; i < items.length; ++i) {
                 var item = items[i];
                 if (item)
                     this.appendToolbarItem(item);
             }
         }
     },
 
     __proto__: WebInspector.Toolbar.prototype
 }