Switch dart:html objects not to be NativeFieldWrapper subclasses with JsInterop

sdk/lib/indexed_db/dartium/indexed_db_dartium.dart

 /**
  * A client-side key-value store with support for indexes.
  *
  * Many browsers support IndexedDB—a web standard for
  * an indexed database.
  * By storing data on the client in an IndexedDB,
  * a web app gets some advantages, such as faster performance and persistence.
  * To find out which browsers support IndexedDB,
  * refer to [Can I Use?](http://caniuse.com/#feat=indexeddb)
  *
@@ skipping 127 matching lines @@
   'IDBVersionChangeEvent': () => VersionChangeEvent.internalCreateVersionChangeEvent,
 
 };
 // Copyright (c) 2013, 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.
 
 
 @DomName('IDBCursor')
 @Unstable()
-class Cursor extends NativeFieldWrapperClass2 {
+class Cursor extends DartHtmlDomObject {
   @DomName('IDBCursor.delete')
   Future delete() {
    try {
       return _completeRequest(_delete());
     } catch (e, stacktrace) {
       return new Future.error(e, stacktrace);
     }
   }
 
   @DomName('IDBCursor.value')
   Future update(value) {
    try {
       return _completeRequest(_update(value));
     } catch (e, stacktrace) {
       return new Future.error(e, stacktrace);
     }
   }
 
     // To suppress missing implicit constructor warnings.
   factory Cursor._() { throw new UnsupportedError("Not supported"); }
 
   static Cursor internalCreateCursor() {
     return new Cursor._internalWrap();
   }
 
-  js.JsObject blink_jsObject;
-
   factory Cursor._internalWrap() {
     return new Cursor.internal_();
   }
 
   Cursor.internal_() { }
 
   bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
   int get hashCode => unwrap_jso(this).hashCode;
 
   @DomName('IDBCursor.direction')
@@ skipping 256 matching lines @@
 // 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.
 
 
 @DomName('IDBFactory')
 @SupportedBrowser(SupportedBrowser.CHROME)
 @SupportedBrowser(SupportedBrowser.FIREFOX, '15')
 @SupportedBrowser(SupportedBrowser.IE, '10')
 @Experimental()
 @Unstable()
-class IdbFactory extends NativeFieldWrapperClass2 {
+class IdbFactory extends DartHtmlDomObject {
   /**
    * Checks to see if Indexed DB is supported on the current platform.
    */
   static bool get supported {
     return true;
   }
 
   @DomName('IDBFactory.open')
   Future<Database> open(String name,
       {int version, void onUpgradeNeeded(VersionChangeEvent),
@@ skipping 62 matching lines @@
     return true;
   }
 
   // To suppress missing implicit constructor warnings.
   factory IdbFactory._() { throw new UnsupportedError("Not supported"); }
 
   static IdbFactory internalCreateIdbFactory() {
     return new IdbFactory._internalWrap();
   }
 
-  js.JsObject blink_jsObject;
-
   factory IdbFactory._internalWrap() {
     return new IdbFactory.internal_();
   }
 
   IdbFactory.internal_() { }
 
   bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
   int get hashCode => unwrap_jso(this).hashCode;
 
   @DomName('IDBFactory.cmp')
@@ skipping 35 matching lines @@
   request.onError.listen(completer.completeError);
   return completer.future;
 }
 // Copyright (c) 2013, 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.
 
 
 @DomName('IDBIndex')
 @Unstable()
-class Index extends NativeFieldWrapperClass2 {
+class Index extends DartHtmlDomObject {
   @DomName('IDBIndex.count')
   Future<int> count([key_OR_range]) {
    try {
       var request = _count(key_OR_range);
       return _completeRequest(request);
     } catch (e, stacktrace) {
       return new Future.error(e, stacktrace);
     }
   }
 
@@ skipping 75 matching lines @@
     return ObjectStore._cursorStreamFromResult(request, autoAdvance);
   }
 
     // To suppress missing implicit constructor warnings.
   factory Index._() { throw new UnsupportedError("Not supported"); }
 
   static Index internalCreateIndex() {
     return new Index._internalWrap();
   }
 
-  js.JsObject blink_jsObject;
-
   factory Index._internalWrap() {
     return new Index.internal_();
   }
 
   Index.internal_() { }
 
   bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
   int get hashCode => unwrap_jso(this).hashCode;
 
   @DomName('IDBIndex.keyPath')
@@ skipping 43 matching lines @@
   }
 
 }
 // 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.
 
 
 @DomName('IDBKeyRange')
 @Unstable()
-class KeyRange extends NativeFieldWrapperClass2 {
+class KeyRange extends DartHtmlDomObject {
   @DomName('IDBKeyRange.only')
   factory KeyRange.only(/*Key*/ value) =>
       _KeyRangeFactoryProvider.createKeyRange_only(value);
 
   @DomName('IDBKeyRange.lowerBound')
   factory KeyRange.lowerBound(/*Key*/ bound, [bool open = false]) =>
       _KeyRangeFactoryProvider.createKeyRange_lowerBound(bound, open);
 
   @DomName('IDBKeyRange.upperBound')
   factory KeyRange.upperBound(/*Key*/ bound, [bool open = false]) =>
       _KeyRangeFactoryProvider.createKeyRange_upperBound(bound, open);
 
   @DomName('KeyRange.bound')
   factory KeyRange.bound(/*Key*/ lower, /*Key*/ upper,
                             [bool lowerOpen = false, bool upperOpen = false]) =>
       _KeyRangeFactoryProvider.createKeyRange_bound(
           lower, upper, lowerOpen, upperOpen);
 
   // To suppress missing implicit constructor warnings.
   factory KeyRange._() { throw new UnsupportedError("Not supported"); }
 
   static KeyRange internalCreateKeyRange() {
     return new KeyRange._internalWrap();
   }
 
-  js.JsObject blink_jsObject;
-
   factory KeyRange._internalWrap() {
     return new KeyRange.internal_();
   }
 
   KeyRange.internal_() { }
 
   bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
   int get hashCode => unwrap_jso(this).hashCode;
 
   @DomName('IDBKeyRange.lower')
@@ skipping 42 matching lines @@
   }
 
 }
 // 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.
 
 
 @DomName('IDBObjectStore')
 @Unstable()
-class ObjectStore extends NativeFieldWrapperClass2 {
+class ObjectStore extends DartHtmlDomObject {
 
   @DomName('IDBObjectStore.add')
   Future add(value, [key]) {
     try {
       var request;
       if (key != null) {
         request = _add(value, key);
       } else {
         request = _add(value);
       }
@@ skipping 114 matching lines @@
     return _createIndex(name, keyPath, options);
   }
 
   // To suppress missing implicit constructor warnings.
   factory ObjectStore._() { throw new UnsupportedError("Not supported"); }
 
   static ObjectStore internalCreateObjectStore() {
     return new ObjectStore._internalWrap();
   }
 
-  js.JsObject blink_jsObject;
-
   factory ObjectStore._internalWrap() {
     return new ObjectStore.internal_();
   }
 
   ObjectStore.internal_() { }
 
   bool operator ==(other) => unwrap_jso(other) == unwrap_jso(this) || identical(this, other);
   int get hashCode => unwrap_jso(this).hashCode;
 
   @DomName('IDBObjectStore.autoIncrement')
@@ skipping 402 matching lines @@
   
   @DomName('IDBVersionChangeEvent.newVersion')
   @DocsEditable()
   int get newVersion => _blink.BlinkIDBVersionChangeEvent.instance.newVersion_Getter_(unwrap_jso(this));
   
   @DomName('IDBVersionChangeEvent.oldVersion')
   @DocsEditable()
   int get oldVersion => _blink.BlinkIDBVersionChangeEvent.instance.oldVersion_Getter_(unwrap_jso(this));
   
 }