Safely wrap window.top in frog dom.

client/dom/generated/src/wrapping/_StorageInfoWrappingImplementation.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 class _StorageInfoWrappingImplementation extends DOMWrapperBase implements StorageInfo {
   _StorageInfoWrappingImplementation() : super() {}
 
   static create__StorageInfoWrappingImplementation() native {
     return new _StorageInfoWrappingImplementation();
   }
 
   void queryUsageAndQuota(int storageType, [StorageInfoUsageCallback usageCallback = null, StorageInfoErrorCallback errorCallback = null]) {
-    if (usageCallback === null) {
-      if (errorCallback === null) {
-        _queryUsageAndQuota(this, storageType);
-        return;
-      }
-    } else {
-      if (errorCallback === null) {
-        _queryUsageAndQuota_2(this, storageType, usageCallback);
-        return;
-      } else {
-        _queryUsageAndQuota_3(this, storageType, usageCallback, errorCallback);
-        return;
-      }
-    }
-    throw "Incorrect number or type of arguments";
+    _queryUsageAndQuota(this, storageType, usageCallback, errorCallback);
+    return;
   }
-  static void _queryUsageAndQuota(receiver, storageType) native;
-  static void _queryUsageAndQuota_2(receiver, storageType, usageCallback) native;
-  static void _queryUsageAndQuota_3(receiver, storageType, usageCallback, errorCallback) native;
+  static void _queryUsageAndQuota(receiver, storageType, usageCallback, errorCallback) native;
 
   void requestQuota(int storageType, int newQuotaInBytes, [StorageInfoQuotaCallback quotaCallback = null, StorageInfoErrorCallback errorCallback = null]) {
-    if (quotaCallback === null) {
-      if (errorCallback === null) {
-        _requestQuota(this, storageType, newQuotaInBytes);
-        return;
-      }
-    } else {
-      if (errorCallback === null) {
-        _requestQuota_2(this, storageType, newQuotaInBytes, quotaCallback);
-        return;
-      } else {
-        _requestQuota_3(this, storageType, newQuotaInBytes, quotaCallback, errorCallback);
-        return;
-      }
-    }
-    throw "Incorrect number or type of arguments";
+    _requestQuota(this, storageType, newQuotaInBytes, quotaCallback, errorCallback);
+    return;
   }
-  static void _requestQuota(receiver, storageType, newQuotaInBytes) native;
-  static void _requestQuota_2(receiver, storageType, newQuotaInBytes, quotaCallback) native;
-  static void _requestQuota_3(receiver, storageType, newQuotaInBytes, quotaCallback, errorCallback) native;
+  static void _requestQuota(receiver, storageType, newQuotaInBytes, quotaCallback, errorCallback) native;
 
   String get typeName() { return "StorageInfo"; }
 }