Regression : Unwated white space seen in Styles section after resizing the devtools window.

Source/devtools/front_end/elements/StylesSidebarPane.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * 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
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  */
 
 /**
  * @constructor
  * @extends {WebInspector.ElementsSidebarPane}
  * @param {function()} requestShowCallback
  */
 WebInspector.StylesSidebarPane = function(requestShowCallback)
 {
     WebInspector.ElementsSidebarPane.call(this, WebInspector.UIString("Styles"));
+    this.setMinimumSize(96, 26);
 
     this.element.addEventListener("contextmenu", this._contextMenuEventFired.bind(this), true);
     WebInspector.moduleSetting("colorFormat").addChangeListener(this.update.bind(this));
     WebInspector.moduleSetting("textEditorIndent").addChangeListener(this.update.bind(this));
 
     var hbox = this.element.createChild("div", "hbox styles-sidebar-pane-toolbar");
     var filterContainerElement = hbox.createChild("div", "styles-sidebar-pane-filter-box");
     this._filterInput = WebInspector.StylesSidebarPane.createPropertyFilterElement(WebInspector.UIString("Filter"), hbox, this._onFilterChanged.bind(this));
     filterContainerElement.appendChild(this._filterInput);
 
@@ skipping 3203 matching lines @@
 
     /**
      * @override
      * @return {?WebInspector.ToolbarItem}
      */
     item: function()
     {
         return this._button;
     }
 }