DevTools: reformat front-end code to match chromium style.

third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 1764 matching lines @@
 
 WebInspector.TimelineCategory.prototype = {
     /**
      * @return {boolean}
      */
     get hidden()
     {
         return this._hidden;
     },
 
+    /**
+     * @param {boolean} hidden
+     */
     set hidden(hidden)
     {
         this._hidden = hidden;
         this.dispatchEventToListeners(WebInspector.TimelineCategory.Events.VisibilityChanged, this);
     },
 
     __proto__: WebInspector.Object.prototype
 };
 
 /**
@@ skipping 349 matching lines @@
     case warnings.V8Deopt:
         span.appendChild(WebInspector.linkifyURLAsNode("https://github.com/GoogleChrome/devtools-docs/issues/53",
             WebInspector.UIString("Not optimized"), undefined, true));
         span.createTextChild(WebInspector.UIString(": %s", eventData["deoptReason"]));
         break;
     default:
         console.assert(false, "Unhandled TimelineModel.WarningType");
     }
     return span;
 };