DevTools: Unify filtering UI

Source/devtools/front_end/Panel.js

 /*
  * Copyright (C) 2007, 2008 Apple 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 115 matching lines @@
      * @param {string} query
      * @param {string} text
      */
     replaceAllWith: function(query, text)
     {
     },
 
     /**
      * @return {boolean}
      */
-    canFilter: function()
-    {
-        return false;
-    },
-
-    /**
-     * @param {string} query
-     */
-    performFilter: function(query)
-    {
-    },
-
-    /**
-     * @return {boolean}
-     */
     canSetFooterElement: function()
     {
         return false;
     },
 
     /**
      * @param {?Element} element
      */
     setFooterElement: function(element)
     {
@@ skipping 150 matching lines @@
         if (this._panel)
             return this._panel;
         if (this._scriptName)
             loadScript(this._scriptName);
         this._panel = new WebInspector[this._className];
         return this._panel;
     },
 
     registerShortcuts: function() {}
 }