[DevTools] Fix compile errors before closure compiler roll

third_party/WebKit/Source/devtools/front_end/resources/DatabaseModel.js

 /*
  * Copyright (C) 2007, 2008 Apple 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 147 matching lines @@
         this._agent.enable();
         this._enabled = true;
     },
 
     /**
      * @return {!Array.<!WebInspector.Database>}
      */
     databases: function()
     {
         var result = [];
-        for (var databaseId in this._databases)
-            result.push(this._databases[databaseId]);
+        for (var database of this._databases)
+            result.push(database);
         return result;
     },
 
     /**
      * @param {!WebInspector.Database} database
      */
     _addDatabase: function(database)
     {
         this._databases.push(database);
         this.dispatchEventToListeners(WebInspector.DatabaseModel.Events.DatabaseAdded, database);
@@ skipping 32 matching lines @@
 /**
  * @param {!WebInspector.Target} target
  * @return {!WebInspector.DatabaseModel}
  */
 WebInspector.DatabaseModel.fromTarget = function(target)
 {
     if (!target[WebInspector.DatabaseModel._symbol])
         target[WebInspector.DatabaseModel._symbol] = new WebInspector.DatabaseModel(target);
 
     return target[WebInspector.DatabaseModel._symbol];
-}
+}