Removing interfaces from dart:html

lib/html/src/dart2js_IDBKeyRangeFactoryProvider.dart

 // Copyright (c) 2012, 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.
 
 class _IDBKeyRangeFactoryProvider {
 
-  factory IDBKeyRange.only(/*IDBKey*/ value) =>
+  static IDBKeyRange createIDBKeyRange_only(/*IDBKey*/ value) =>
       _only(_class(), _translateKey(value));
 
-  factory IDBKeyRange.lowerBound(/*IDBKey*/ bound, [bool open = false]) =>
+  static IDBKeyRange createIDBKeyRange_lowerBound(
+      /*IDBKey*/ bound, [bool open = false]) =>
       _lowerBound(_class(), _translateKey(bound), open);
 
-  factory IDBKeyRange.upperBound(/*IDBKey*/ bound, [bool open = false]) =>
+  static IDBKeyRange createIDBKeyRange_upperBound(
+      /*IDBKey*/ bound, [bool open = false]) =>
       _upperBound(_class(), _translateKey(bound), open);
 
-  factory IDBKeyRange.bound(/*IDBKey*/ lower, /*IDBKey*/ upper,
-                            [bool lowerOpen = false, bool upperOpen = false]) =>
+  static IDBKeyRange createIDBKeyRange_bound(/*IDBKey*/ lower, /*IDBKey*/ upper,
+      [bool lowerOpen = false, bool upperOpen = false]) =>
       _bound(_class(), _translateKey(lower), _translateKey(upper),
              lowerOpen, upperOpen);
 
   static var _cachedClass;
 
   static _class() {
     if (_cachedClass != null) return _cachedClass;
     return _cachedClass = _uncachedClass();
   }
 
@@ skipping 10 matching lines @@
   static _IDBKeyRangeImpl _lowerBound(cls, bound, open) native
       '''return cls.lowerBound(bound, open);''';
 
   static _IDBKeyRangeImpl _upperBound(cls, bound, open) native
       '''return cls.upperBound(bound, open);''';
 
   static _IDBKeyRangeImpl _bound(cls, lower, upper, lowerOpen, upperOpen) native
       '''return cls.bound(lower, upper, lowerOpen, upperOpen);''';
 
 }