[DevTools] Prepare UI module for closure compiler roll

third_party/WebKit/Source/devtools/front_end/ui/TabbedPane.js

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 606 matching lines @@
         this._headerContentsElement.removeChild(this._dropDownButton);
         this._dropDownButton.classList.remove("measuring");
     },
 
     _updateWidths: function()
     {
         var measuredWidths = this._measureWidths();
         var maxWidth = this._shrinkableTabs ? this._calculateMaxWidth(measuredWidths.slice(), this._totalWidth()) : Number.MAX_VALUE;
 
         var i = 0;
-        for (var tabId in this._tabs) {
-            var tab = this._tabs[tabId];
+        for (var tab of this._tabs)
             tab.setWidth(this._verticalTabLayout ? -1 : Math.min(maxWidth, measuredWidths[i++]));
-        }
     },
 
     _measureWidths: function()
     {
         // Add all elements to measure into this._tabsElement
         this._tabsElement.style.setProperty("width", "2000px");
         var measuringTabElements = [];
-        for (var tabId in this._tabs) {
-            var tab = this._tabs[tabId];
+        for (var tab of this._tabs) {
             if (typeof tab._measuredWidth === "number")
                 continue;
             var measuringTabElement = tab._createTabElement(true);
             measuringTabElement.__tab = tab;
             measuringTabElements.push(measuringTabElement);
             this._tabsElement.appendChild(measuringTabElement);
         }
 
         // Perform measurement
         for (var i = 0; i < measuringTabElements.length; ++i) {
             var width = measuringTabElements[i].getBoundingClientRect().width;
             measuringTabElements[i].__tab._measuredWidth = Math.ceil(width);
         }
 
         // Nuke elements from the UI
         for (var i = 0; i < measuringTabElements.length; ++i)
             measuringTabElements[i].remove();
 
         // Combine the results.
         var measuredWidths = [];
-        for (var tabId in this._tabs)
-            measuredWidths.push(this._tabs[tabId]._measuredWidth);
+        for (var tab of this._tabs)
+            measuredWidths.push(tab._measuredWidth);
         this._tabsElement.style.removeProperty("width");
 
         return measuredWidths;
     },
 
     /**
      * @param {!Array.<number>} measuredWidths
      * @param {number} totalWidth
      */
     _calculateMaxWidth: function(measuredWidths, totalWidth)
@@ skipping 742 matching lines @@
             if (this._viewCallback && view)
                 this._viewCallback(id, view);
             var shouldFocus = this._tabbedPane.visibleView.element.isSelfOrAncestor(WebInspector.currentFocusElement());
             this._tabbedPane.changeTabView(id, view);
             if (shouldFocus)
                 view.focus();
             return view;
         }
     }
 }