DevTools: Fix all outstanding JavaScript style issues.

third_party/WebKit/Source/devtools/front_end/sources/ScopeChainSidebarPane.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 119 matching lines @@
 
             section.element.classList.add("scope-chain-sidebar-pane-section");
             this.element.appendChild(section.element);
         }
         this._sidebarPaneUpdatedForTest();
     },
 
     _sidebarPaneUpdatedForTest: function() { },
 
     __proto__: WebInspector.SidebarPane.prototype
-}
+}