DevTools: Fix focus handling in debug mode.

Source/devtools/front_end/ui/UIUtils.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.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:
  *
@@ skipping 1053 matching lines @@
         this._element.removeEventListener("mousedown", this._longClickData.mouseDown, false);
         this._element.removeEventListener("mouseout", this._longClickData.reset, false);
         this._element.removeEventListener("mouseup", this._longClickData.mouseUp, false);
         this._element.addEventListener("click", this._longClickData.reset, true);
         delete this._longClickData;
     },
 
     __proto__: WebInspector.Object.prototype
 }
 
-;(function() {
-
-function windowLoaded()
+WebInspector.initializeUIUtils = function()
 {
     window.addEventListener("focus", WebInspector._windowFocused, false);
     window.addEventListener("blur", WebInspector._windowBlurred, false);
     document.addEventListener("focus", WebInspector._focusChanged, true);
     document.addEventListener("blur", WebInspector._documentBlurred, true);
-    window.removeEventListener("DOMContentLoaded", windowLoaded, false);
 }
-
-window.addEventListener("DOMContentLoaded", windowLoaded, false);
-
-})();