DevTools: Implement Styles search and Computed style filter

Source/devtools/front_end/utilities.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 116 matching lines @@
     }
 
     return result;
 }
 
 /**
  * @return {string}
  */
 String.regexSpecialCharacters = function()
 {
-    return "^[]{}()\\.$*+?|-,";
+    return "^[]{}()\\.^$*+?|-,";
 }
 
 /**
  * @return {string}
  */
 String.prototype.escapeForRegExp = function()
 {
     return this.escapeCharacters(String.regexSpecialCharacters());
 }
 
@@ skipping 1380 matching lines @@
             this._outgoingCallback();
     }
 }
 
 /**
  * @param {*} value
  */
 function suppressUnused(value)
 {
 }