Revert "Removed Dartium SDK libs"

sdk/lib/indexed_db/dartium/indexed_db_dartium.dart

Index: sdk/lib/indexed_db/dartium/indexed_db_dartium.dart
diff --git a/sdk/lib/indexed_db/dartium/indexed_db_dartium.dart b/sdk/lib/indexed_db/dartium/indexed_db_dartium.dart
new file mode 100644
index 0000000000000000000000000000000000000000..143f1b662114d90257e2beff062a68e1be88e8bb
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@@ -0,0 +1,1467 @@
+/**
+ * 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)
+ *
+ * In IndexedDB, each record is identified by a unique index or key,
+ * making data retrieval speedy.
+ * You can store structured data,
+ * such as images, arrays, and maps using IndexedDB.
+ * The standard does not specify size limits for individual data items
+ * or for the database itself, but browsers may impose storage limits.
+ *
+ * ## Using indexed_db
+ *
+ * The classes in this library provide an interface
+ * to the browser's IndexedDB, if it has one.
+ * To use this library in your code:
+ *
+ *     import 'dart:indexed_db';
+ *
+ * A web app can determine if the browser supports
+ * IndexedDB with [IdbFactory.supported]:
+ *
+ *     if (IdbFactory.supported)
+ *       // Use indexeddb.
+ *     else
+ *       // Find an alternative.
+ *
+ * Access to the browser's IndexedDB is provided by the app's top-level
+ * [Window] object, which your code can refer to with `window.indexedDB`.
+ * So, for example,
+ * here's how to use window.indexedDB to open a database:
+ *
+ *     Future open() {
+ *       return window.indexedDB.open('myIndexedDB',
+ *           version: 1,
+ *           onUpgradeNeeded: _initializeDatabase)
+ *         .then(_loadFromDB);
+ *     }
+ *     void _initializeDatabase(VersionChangeEvent e) {
+ *       ...
+ *     }
+ *     Future _loadFromDB(Database db) {
+ *       ...
+ *     }
+ *
+ *
+ * All data in an IndexedDB is stored within an [ObjectStore].
+ * To manipulate the database use [Transaction]s.
+ *
+ * ## Other resources
+ *
+ * Other options for client-side data storage include:
+ *
+ * * [Window.localStorage]—a
+ * basic mechanism that stores data as a [Map],
+ * and where both the keys and the values are strings.
+ *
+ * * [dart:web_sql]—a database that can be queried with SQL.
+ *
+ * For a tutorial about using the indexed_db library with Dart,
+ * check out
+ * [Use IndexedDB](http://www.dartlang.org/docs/tutorials/indexeddb/).
+ *
+ * [IndexedDB reference](http://docs.webplatform.org/wiki/apis/indexeddb)
+ * provides wiki-style docs about indexedDB
+ */
+library dart.dom.indexed_db;
+
+import 'dart:async';
+import 'dart:html';
+import 'dart:html_common';
+import 'dart:nativewrappers';
+import 'dart:_blink' as _blink;
+import 'dart:js' as js;
+// 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.
+
+// DO NOT EDIT
+// Auto-generated dart:indexed_db library.
+
+class _KeyRangeFactoryProvider {
+  static KeyRange createKeyRange_only(/*IDBKey*/ value) =>
+      KeyRange.only_(value);
+
+  static KeyRange createKeyRange_lowerBound(
+          /*IDBKey*/ bound,
+          [bool open = false]) =>
+      KeyRange.lowerBound_(bound, open);
+
+  static KeyRange createKeyRange_upperBound(
+          /*IDBKey*/ bound,
+          [bool open = false]) =>
+      KeyRange.upperBound_(bound, open);
+
+  static KeyRange createKeyRange_bound(
+          /*IDBKey*/ lower,
+          /*IDBKey*/ upper,
+          [bool lowerOpen = false,
+          bool upperOpen = false]) =>
+      KeyRange.bound_(lower, upper, lowerOpen, upperOpen);
+}
+
+// FIXME: Can we make this private?
+@Deprecated("Internal Use Only")
+final indexed_dbBlinkMap = {
+  'IDBCursor': () => Cursor.instanceRuntimeType,
+  'IDBCursorWithValue': () => CursorWithValue.instanceRuntimeType,
+  'IDBDatabase': () => Database.instanceRuntimeType,
+  'IDBFactory': () => IdbFactory.instanceRuntimeType,
+  'IDBIndex': () => Index.instanceRuntimeType,
+  'IDBKeyRange': () => KeyRange.instanceRuntimeType,
+  'IDBObjectStore': () => ObjectStore.instanceRuntimeType,
+  'IDBOpenDBRequest': () => OpenDBRequest.instanceRuntimeType,
+  'IDBRequest': () => Request.instanceRuntimeType,
+  'IDBTransaction': () => Transaction.instanceRuntimeType,
+  'IDBVersionChangeEvent': () => VersionChangeEvent.instanceRuntimeType,
+};
+
+//
+// Per http://www.w3.org/TR/IndexedDB/#key-construct
+//
+// "A value is said to be a valid key if it is one of the following types: Array
+// JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float
+// [WEBIDL]. However Arrays are only valid keys if every item in the array is
+// defined and is a valid key (i.e. sparse arrays can not be valid keys) and if
+// the Array doesn't directly or indirectly contain itself. Any non-numeric
+// properties are ignored, and thus does not affect whether the Array is a valid
+// key. Additionally, if the value is of type float, it is only a valid key if
+// it is not NaN, and if the value is of type Date it is only a valid key if its
+// [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN."
+
+// What is required is to ensure that an Lists in the key are actually
+// JavaScript arrays, and any Dates are JavaScript Dates.
+
+/**
+ * Converts a native IDBKey into a Dart object.
+ *
+ * May return the original input.  May mutate the original input (but will be
+ * idempotent if mutation occurs).  It is assumed that this conversion happens
+ * on native IDBKeys on all paths that return IDBKeys from native DOM calls.
+ *
+ * If necessary, JavaScript Dates are converted into Dart Dates.
+ */
+_convertNativeToDart_IDBKey(nativeKey) {
+  containsDate(object) {
+    if (object is DateTime) return true;
+    if (object is List) {
+      for (int i = 0; i < object.length; i++) {
+        if (containsDate(object[i])) return true;
+      }
+    }
+    return false; // number, string.
+  }
+
+  if (nativeKey is DateTime) {
+    throw new UnimplementedError('Key containing DateTime');
+  }
+  // TODO: Cache conversion somewhere?
+  return nativeKey;
+}
+
+/**
+ * Converts a Dart object into a valid IDBKey.
+ *
+ * May return the original input.  Does not mutate input.
+ *
+ * If necessary, [dartKey] may be copied to ensure all lists are converted into
+ * JavaScript Arrays and Dart Dates into JavaScript Dates.
+ */
+_convertDartToNative_IDBKey(dartKey) {
+  // TODO: Implement.
+  return dartKey;
+}
+
+/// May modify original.  If so, action is idempotent.
+_convertNativeToDart_IDBAny(object) {
+  return convertNativeToDart_AcceptStructuredClone(object, mustCopy: false);
+} // 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 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");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  Cursor.internal_() {}
+
+  @DomName('IDBCursor.direction')
+  @DocsEditable()
+  String get direction =>
+      _blink.BlinkIDBCursor.instance.direction_Getter_(this);
+
+  @DomName('IDBCursor.key')
+  @DocsEditable()
+  Object get key => (_blink.BlinkIDBCursor.instance.key_Getter_(this));
+
+  @DomName('IDBCursor.primaryKey')
+  @DocsEditable()
+  Object get primaryKey =>
+      (_blink.BlinkIDBCursor.instance.primaryKey_Getter_(this));
+
+  @DomName('IDBCursor.source')
+  @DocsEditable()
+  Object get source => (_blink.BlinkIDBCursor.instance.source_Getter_(this));
+
+  @DomName('IDBCursor.advance')
+  @DocsEditable()
+  void advance(int count) =>
+      _blink.BlinkIDBCursor.instance.advance_Callback_1_(this, count);
+
+  @DomName('IDBCursor.continuePrimaryKey')
+  @DocsEditable()
+  @Experimental() // untriaged
+  void continuePrimaryKey(Object key, Object primaryKey) =>
+      _blink.BlinkIDBCursor.instance
+          .continuePrimaryKey_Callback_2_(this, key, primaryKey);
+
+  @DomName('IDBCursor.delete')
+  @DocsEditable()
+  Request _delete() => _blink.BlinkIDBCursor.instance.delete_Callback_0_(this);
+
+  void next([Object key]) {
+    if (key != null) {
+      _blink.BlinkIDBCursor.instance.continue_Callback_1_(this, key);
+      return;
+    }
+    _blink.BlinkIDBCursor.instance.continue_Callback_0_(this);
+    return;
+  }
+
+  @DomName('IDBCursor.update')
+  @DocsEditable()
+  Request _update(Object value) =>
+      _blink.BlinkIDBCursor.instance.update_Callback_1_(
+          this, convertDartToNative_SerializedScriptValue(value));
+}
+// 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.
+
+// WARNING: Do not edit - generated code.
+
+@DocsEditable()
+@DomName('IDBCursorWithValue')
+@Unstable()
+class CursorWithValue extends Cursor {
+  // To suppress missing implicit constructor warnings.
+  factory CursorWithValue._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  CursorWithValue.internal_() : super.internal_();
+
+  @DomName('IDBCursorWithValue.value')
+  @DocsEditable()
+  Object get value => _convertNativeToDart_IDBAny(
+      _blink.BlinkIDBCursorWithValue.instance.value_Getter_(this));
+}
+// 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.
+
+@DocsEditable()
+/**
+ * An indexed database object for storing client-side data
+ * in web apps.
+ */
+@DomName('IDBDatabase')
+@SupportedBrowser(SupportedBrowser.CHROME)
+@SupportedBrowser(SupportedBrowser.FIREFOX, '15')
+@SupportedBrowser(SupportedBrowser.IE, '10')
+@Experimental()
+@Unstable()
+class Database extends EventTarget {
+  @DomName('IDBDatabase.createObjectStore')
+  @DocsEditable()
+  ObjectStore createObjectStore(String name,
+      {String keyPath, bool autoIncrement}) {
+    var options = {};
+    if (keyPath != null) {
+      options['keyPath'] = keyPath;
+    }
+    if (autoIncrement != null) {
+      options['autoIncrement'] = autoIncrement;
+    }
+
+    return _createObjectStore(name, options);
+  }
+
+  Transaction transaction(storeName_OR_storeNames, String mode) {
+    if (mode != 'readonly' && mode != 'readwrite') {
+      throw new ArgumentError("Invalid transaction mode $mode");
+    }
+    var names;
+    if (storeName_OR_storeNames == null) {
+      throw new ArgumentError("stores may not be null in transaction");
+    } else if (storeName_OR_storeNames is String ||
+        storeName_OR_storeNames is DomStringList) {
+      names = storeName_OR_storeNames;
+    } else if (storeName_OR_storeNames is List<String>) {
+      names = convertDartToNative_List(storeName_OR_storeNames);
+    } else {
+      throw new ArgumentError("Invalid store(s) $store_Name_OR_storeNames");
+    }
+
+    return _blink.BlinkIDBDatabase.instance
+        .transaction_Callback_2_(this, names, mode);
+  }
+
+  Transaction transactionList(List<String> storeNames, String mode) =>
+      transaction(storeNames, mode);
+  Transaction transactionStores(List<String> storeNames, String mode) =>
+      transaction(storeNames, mode);
+  Transaction transactionStore(String storeName, String mode) =>
+      transaction(storeName, mode);
+
+  // To suppress missing implicit constructor warnings.
+  factory Database._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  /**
+   * Static factory designed to expose `abort` events to event
+   * handlers that are not necessarily instances of [Database].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBDatabase.abortEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> abortEvent =
+      const EventStreamProvider<Event>('abort');
+
+  /**
+   * Static factory designed to expose `close` events to event
+   * handlers that are not necessarily instances of [Database].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBDatabase.closeEvent')
+  @DocsEditable()
+  // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22540
+  @Experimental()
+  static const EventStreamProvider<Event> closeEvent =
+      const EventStreamProvider<Event>('close');
+
+  /**
+   * Static factory designed to expose `error` events to event
+   * handlers that are not necessarily instances of [Database].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBDatabase.errorEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> errorEvent =
+      const EventStreamProvider<Event>('error');
+
+  /**
+   * Static factory designed to expose `versionchange` events to event
+   * handlers that are not necessarily instances of [Database].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBDatabase.versionchangeEvent')
+  @DocsEditable()
+  static const EventStreamProvider<VersionChangeEvent> versionChangeEvent =
+      const EventStreamProvider<VersionChangeEvent>('versionchange');
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  Database.internal_() : super.internal_();
+
+  @DomName('IDBDatabase.name')
+  @DocsEditable()
+  String get name => _blink.BlinkIDBDatabase.instance.name_Getter_(this);
+
+  @DomName('IDBDatabase.objectStoreNames')
+  @DocsEditable()
+  List<String> get objectStoreNames =>
+      _blink.BlinkIDBDatabase.instance.objectStoreNames_Getter_(this);
+
+  @DomName('IDBDatabase.version')
+  @DocsEditable()
+  int get version => _blink.BlinkIDBDatabase.instance.version_Getter_(this);
+
+  @DomName('IDBDatabase.close')
+  @DocsEditable()
+  void close() => _blink.BlinkIDBDatabase.instance.close_Callback_0_(this);
+
+  ObjectStore _createObjectStore(String name, [Map options]) {
+    if (options != null) {
+      return _blink.BlinkIDBDatabase.instance.createObjectStore_Callback_2_(
+          this, name, convertDartToNative_Dictionary(options));
+    }
+    return _blink.BlinkIDBDatabase.instance
+        .createObjectStore_Callback_1_(this, name);
+  }
+
+  @DomName('IDBDatabase.deleteObjectStore')
+  @DocsEditable()
+  void deleteObjectStore(String name) => _blink.BlinkIDBDatabase.instance
+      .deleteObjectStore_Callback_1_(this, name);
+
+  /// Stream of `abort` events handled by this [Database].
+  @DomName('IDBDatabase.onabort')
+  @DocsEditable()
+  Stream<Event> get onAbort => abortEvent.forTarget(this);
+
+  /// Stream of `close` events handled by this [Database].
+  @DomName('IDBDatabase.onclose')
+  @DocsEditable()
+  // https://www.w3.org/Bugs/Public/show_bug.cgi?id=22540
+  @Experimental()
+  Stream<Event> get onClose => closeEvent.forTarget(this);
+
+  /// Stream of `error` events handled by this [Database].
+  @DomName('IDBDatabase.onerror')
+  @DocsEditable()
+  Stream<Event> get onError => errorEvent.forTarget(this);
+
+  /// Stream of `versionchange` events handled by this [Database].
+  @DomName('IDBDatabase.onversionchange')
+  @DocsEditable()
+  Stream<VersionChangeEvent> get onVersionChange =>
+      versionChangeEvent.forTarget(this);
+}
+// 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('IDBFactory')
+@SupportedBrowser(SupportedBrowser.CHROME)
+@SupportedBrowser(SupportedBrowser.FIREFOX, '15')
+@SupportedBrowser(SupportedBrowser.IE, '10')
+@Experimental()
+@Unstable()
+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),
+      void onBlocked(Event)}) {
+    if ((version == null) != (onUpgradeNeeded == null)) {
+      return new Future.error(new ArgumentError(
+          'version and onUpgradeNeeded must be specified together'));
+    }
+    try {
+      var request;
+      if (version != null) {
+        request = _open(name, version);
+      } else {
+        request = _open(name);
+      }
+
+      if (onUpgradeNeeded != null) {
+        request.onUpgradeNeeded.listen(onUpgradeNeeded);
+      }
+      if (onBlocked != null) {
+        request.onBlocked.listen(onBlocked);
+      }
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBFactory.deleteDatabase')
+  Future<IdbFactory> deleteDatabase(String name, {void onBlocked(Event e)}) {
+    try {
+      var request = _deleteDatabase(name);
+
+      if (onBlocked != null) {
+        request.onBlocked.listen(onBlocked);
+      }
+      var completer = new Completer<IdbFactory>.sync();
+      request.onSuccess.listen((e) {
+        completer.complete(this);
+      });
+      request.onError.listen(completer.completeError);
+      return completer.future;
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBFactory.getDatabaseNames')
+  @SupportedBrowser(SupportedBrowser.CHROME)
+  @Experimental()
+  Future<List<String>> getDatabaseNames() {
+    try {
+      var request = _webkitGetDatabaseNames();
+
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  /**
+   * Checks to see if getDatabaseNames is supported by the current platform.
+   */
+  bool get supportsDatabaseNames {
+    return true;
+  }
+
+  // To suppress missing implicit constructor warnings.
+  factory IdbFactory._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  IdbFactory.internal_() {}
+
+  @DomName('IDBFactory.cmp')
+  @DocsEditable()
+  int cmp(Object first, Object second) =>
+      _blink.BlinkIDBFactory.instance.cmp_Callback_2_(this, first, second);
+
+  @DomName('IDBFactory.deleteDatabase')
+  @DocsEditable()
+  OpenDBRequest _deleteDatabase(String name) =>
+      _blink.BlinkIDBFactory.instance.deleteDatabase_Callback_1_(this, name);
+
+  OpenDBRequest _open(String name, [int version]) {
+    if (version != null) {
+      return _blink.BlinkIDBFactory.instance
+          .open_Callback_2_(this, name, version);
+    }
+    return _blink.BlinkIDBFactory.instance.open_Callback_1_(this, name);
+  }
+
+  @DomName('IDBFactory.webkitGetDatabaseNames')
+  @DocsEditable()
+  @SupportedBrowser(SupportedBrowser.CHROME)
+  @SupportedBrowser(SupportedBrowser.SAFARI)
+  @Experimental()
+  Request _webkitGetDatabaseNames() =>
+      _blink.BlinkIDBFactory.instance.webkitGetDatabaseNames_Callback_0_(this);
+}
+
+/**
+ * Ties a request to a completer, so the completer is completed when it succeeds
+ * and errors out when the request errors.
+ */
+Future/*<T>*/ _completeRequest/*<T>*/(Request request) {
+  var completer = new Completer/*<T>*/ .sync();
+  // TODO: make sure that completer.complete is synchronous as transactions
+  // may be committed if the result is not processed immediately.
+  request.onSuccess.listen((e) {
+    var result = _cast/*<T>*/(request.result);
+    completer.complete(result);
+  });
+  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 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);
+    }
+  }
+
+  @DomName('IDBIndex.get')
+  Future get(key) {
+    try {
+      var request = _get(key);
+
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBIndex.getKey')
+  Future getKey(key) {
+    try {
+      var request = _getKey(key);
+
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  /**
+   * Creates a stream of cursors over the records in this object store.
+   *
+   * See also:
+   *
+   * * [ObjectStore.openCursor]
+   */
+  Stream<CursorWithValue> openCursor(
+      {key, KeyRange range, String direction, bool autoAdvance}) {
+    var key_OR_range = null;
+    if (key != null) {
+      if (range != null) {
+        throw new ArgumentError('Cannot specify both key and range.');
+      }
+      key_OR_range = key;
+    } else {
+      key_OR_range = range;
+    }
+    var request;
+    if (direction == null) {
+      // FIXME: Passing in "next" should be unnecessary.
+      request = _openCursor(key_OR_range, "next");
+    } else {
+      request = _openCursor(key_OR_range, direction);
+    }
+    return ObjectStore._cursorStreamFromResult(request, autoAdvance);
+  }
+
+  /**
+   * Creates a stream of cursors over the records in this object store.
+   *
+   * See also:
+   *
+   * * [ObjectStore.openCursor]
+   */
+  Stream<Cursor> openKeyCursor(
+      {key, KeyRange range, String direction, bool autoAdvance}) {
+    var key_OR_range = null;
+    if (key != null) {
+      if (range != null) {
+        throw new ArgumentError('Cannot specify both key and range.');
+      }
+      key_OR_range = key;
+    } else {
+      key_OR_range = range;
+    }
+    var request;
+    if (direction == null) {
+      // FIXME: Passing in "next" should be unnecessary.
+      request = _openKeyCursor(key_OR_range, "next");
+    } else {
+      request = _openKeyCursor(key_OR_range, direction);
+    }
+    return ObjectStore._cursorStreamFromResult(request, autoAdvance);
+  }
+
+  // To suppress missing implicit constructor warnings.
+  factory Index._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  Index.internal_() {}
+
+  @DomName('IDBIndex.keyPath')
+  @DocsEditable()
+  Object get keyPath => (_blink.BlinkIDBIndex.instance.keyPath_Getter_(this));
+
+  @DomName('IDBIndex.multiEntry')
+  @DocsEditable()
+  bool get multiEntry => _blink.BlinkIDBIndex.instance.multiEntry_Getter_(this);
+
+  @DomName('IDBIndex.name')
+  @DocsEditable()
+  String get name => _blink.BlinkIDBIndex.instance.name_Getter_(this);
+
+  @DomName('IDBIndex.objectStore')
+  @DocsEditable()
+  ObjectStore get objectStore =>
+      _blink.BlinkIDBIndex.instance.objectStore_Getter_(this);
+
+  @DomName('IDBIndex.unique')
+  @DocsEditable()
+  bool get unique => _blink.BlinkIDBIndex.instance.unique_Getter_(this);
+
+  @DomName('IDBIndex.count')
+  @DocsEditable()
+  Request _count(Object key) =>
+      _blink.BlinkIDBIndex.instance.count_Callback_1_(this, key);
+
+  @DomName('IDBIndex.get')
+  @DocsEditable()
+  Request _get(Object key) =>
+      _blink.BlinkIDBIndex.instance.get_Callback_1_(this, key);
+
+  Request getAll(Object range, [int maxCount]) {
+    if (maxCount != null) {
+      return _blink.BlinkIDBIndex.instance
+          .getAll_Callback_2_(this, range, maxCount);
+    }
+    return _blink.BlinkIDBIndex.instance.getAll_Callback_1_(this, range);
+  }
+
+  Request getAllKeys(Object range, [int maxCount]) {
+    if (maxCount != null) {
+      return _blink.BlinkIDBIndex.instance
+          .getAllKeys_Callback_2_(this, range, maxCount);
+    }
+    return _blink.BlinkIDBIndex.instance.getAllKeys_Callback_1_(this, range);
+  }
+
+  @DomName('IDBIndex.getKey')
+  @DocsEditable()
+  Request _getKey(Object key) =>
+      _blink.BlinkIDBIndex.instance.getKey_Callback_1_(this, key);
+
+  Request _openCursor(Object range, [String direction]) {
+    if (direction != null) {
+      return _blink.BlinkIDBIndex.instance
+          .openCursor_Callback_2_(this, range, direction);
+    }
+    return _blink.BlinkIDBIndex.instance.openCursor_Callback_1_(this, range);
+  }
+
+  Request _openKeyCursor(Object range, [String direction]) {
+    if (direction != null) {
+      return _blink.BlinkIDBIndex.instance
+          .openKeyCursor_Callback_2_(this, range, direction);
+    }
+    return _blink.BlinkIDBIndex.instance.openKeyCursor_Callback_1_(this, range);
+  }
+}
+// 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 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");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  KeyRange.internal_() {}
+
+  @DomName('IDBKeyRange.lower')
+  @DocsEditable()
+  Object get lower => (_blink.BlinkIDBKeyRange.instance.lower_Getter_(this));
+
+  @DomName('IDBKeyRange.lowerOpen')
+  @DocsEditable()
+  bool get lowerOpen =>
+      _blink.BlinkIDBKeyRange.instance.lowerOpen_Getter_(this);
+
+  @DomName('IDBKeyRange.upper')
+  @DocsEditable()
+  Object get upper => (_blink.BlinkIDBKeyRange.instance.upper_Getter_(this));
+
+  @DomName('IDBKeyRange.upperOpen')
+  @DocsEditable()
+  bool get upperOpen =>
+      _blink.BlinkIDBKeyRange.instance.upperOpen_Getter_(this);
+
+  static KeyRange bound_(Object lower, Object upper,
+      [bool lowerOpen, bool upperOpen]) {
+    if (upperOpen != null) {
+      return _blink.BlinkIDBKeyRange.instance
+          .bound_Callback_4_(lower, upper, lowerOpen, upperOpen);
+    }
+    if (lowerOpen != null) {
+      return _blink.BlinkIDBKeyRange.instance
+          .bound_Callback_3_(lower, upper, lowerOpen);
+    }
+    return _blink.BlinkIDBKeyRange.instance.bound_Callback_2_(lower, upper);
+  }
+
+  static KeyRange lowerBound_(Object bound, [bool open]) {
+    if (open != null) {
+      return _blink.BlinkIDBKeyRange.instance
+          .lowerBound_Callback_2_(bound, open);
+    }
+    return _blink.BlinkIDBKeyRange.instance.lowerBound_Callback_1_(bound);
+  }
+
+  @DomName('IDBKeyRange.only_')
+  @DocsEditable()
+  @Experimental() // non-standard
+  static KeyRange only_(Object value) =>
+      _blink.BlinkIDBKeyRange.instance.only_Callback_1_(value);
+
+  static KeyRange upperBound_(Object bound, [bool open]) {
+    if (open != null) {
+      return _blink.BlinkIDBKeyRange.instance
+          .upperBound_Callback_2_(bound, open);
+    }
+    return _blink.BlinkIDBKeyRange.instance.upperBound_Callback_1_(bound);
+  }
+}
+// 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 DartHtmlDomObject {
+  @DomName('IDBObjectStore.add')
+  Future add(value, [key]) {
+    try {
+      var request;
+      if (key != null) {
+        request = _add(value, key);
+      } else {
+        request = _add(value);
+      }
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBObjectStore.clear')
+  Future clear() {
+    try {
+      return _completeRequest(_clear());
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBObjectStore.delete')
+  Future delete(key_OR_keyRange) {
+    try {
+      return _completeRequest(_delete(key_OR_keyRange));
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBObjectStore.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);
+    }
+  }
+
+  @DomName('IDBObjectStore.put')
+  Future put(value, [key]) {
+    try {
+      var request;
+      if (key != null) {
+        request = _put(value, key);
+      } else {
+        request = _put(value);
+      }
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  @DomName('IDBObjectStore.get')
+  Future getObject(key) {
+    try {
+      var request = _get(key);
+
+      return _completeRequest(request);
+    } catch (e, stacktrace) {
+      return new Future.error(e, stacktrace);
+    }
+  }
+
+  /**
+   * Creates a stream of cursors over the records in this object store.
+   *
+   * **The stream must be manually advanced by calling [Cursor.next] after
+   * each item or by specifying autoAdvance to be true.**
+   *
+   *     var cursors = objectStore.openCursor().listen(
+   *       (cursor) {
+   *         // ...some processing with the cursor
+   *         cursor.next(); // advance onto the next cursor.
+   *       },
+   *       onDone: () {
+   *         // called when there are no more cursors.
+   *         print('all done!');
+   *       });
+   *
+   * Asynchronous operations which are not related to the current transaction
+   * will cause the transaction to automatically be committed-- all processing
+   * must be done synchronously unless they are additional async requests to
+   * the current transaction.
+   */
+  @DomName('IDBObjectStore.openCursor')
+  Stream<CursorWithValue> openCursor(
+      {key, KeyRange range, String direction, bool autoAdvance}) {
+    var key_OR_range = null;
+    if (key != null) {
+      if (range != null) {
+        throw new ArgumentError('Cannot specify both key and range.');
+      }
+      key_OR_range = key;
+    } else {
+      key_OR_range = range;
+    }
+
+    // TODO: try/catch this and return a stream with an immediate error.
+    var request;
+    if (direction == null) {
+      request = _openCursor(key_OR_range);
+    } else {
+      request = _openCursor(key_OR_range, direction);
+    }
+    return _cursorStreamFromResult(request, autoAdvance);
+  }
+
+  @DomName('IDBObjectStore.createIndex')
+  Index createIndex(String name, keyPath, {bool unique, bool multiEntry}) {
+    var options = {};
+    if (unique != null) {
+      options['unique'] = unique;
+    }
+    if (multiEntry != null) {
+      options['multiEntry'] = multiEntry;
+    }
+
+    return _createIndex(name, keyPath, options);
+  }
+
+  // To suppress missing implicit constructor warnings.
+  factory ObjectStore._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  ObjectStore.internal_() {}
+
+  @DomName('IDBObjectStore.autoIncrement')
+  @DocsEditable()
+  bool get autoIncrement =>
+      _blink.BlinkIDBObjectStore.instance.autoIncrement_Getter_(this);
+
+  @DomName('IDBObjectStore.indexNames')
+  @DocsEditable()
+  List<String> get indexNames =>
+      _blink.BlinkIDBObjectStore.instance.indexNames_Getter_(this);
+
+  @DomName('IDBObjectStore.keyPath')
+  @DocsEditable()
+  Object get keyPath =>
+      (_blink.BlinkIDBObjectStore.instance.keyPath_Getter_(this));
+
+  @DomName('IDBObjectStore.name')
+  @DocsEditable()
+  String get name => _blink.BlinkIDBObjectStore.instance.name_Getter_(this);
+
+  @DomName('IDBObjectStore.transaction')
+  @DocsEditable()
+  Transaction get transaction =>
+      _blink.BlinkIDBObjectStore.instance.transaction_Getter_(this);
+
+  Request _add(Object value, [Object key]) {
+    if (key != null) {
+      return _blink.BlinkIDBObjectStore.instance.add_Callback_2_(
+          this,
+          convertDartToNative_SerializedScriptValue(value),
+          convertDartToNative_SerializedScriptValue(key));
+    }
+    return _blink.BlinkIDBObjectStore.instance.add_Callback_1_(
+        this, convertDartToNative_SerializedScriptValue(value));
+  }
+
+  @DomName('IDBObjectStore.clear')
+  @DocsEditable()
+  Request _clear() =>
+      _blink.BlinkIDBObjectStore.instance.clear_Callback_0_(this);
+
+  @DomName('IDBObjectStore.count')
+  @DocsEditable()
+  Request _count(Object key) =>
+      _blink.BlinkIDBObjectStore.instance.count_Callback_1_(this, key);
+
+  Index _createIndex(String name, Object keyPath, [Map options]) {
+    if (options != null) {
+      return _blink.BlinkIDBObjectStore.instance.createIndex_Callback_3_(
+          this, name, keyPath, convertDartToNative_Dictionary(options));
+    }
+    return _blink.BlinkIDBObjectStore.instance
+        .createIndex_Callback_2_(this, name, keyPath);
+  }
+
+  @DomName('IDBObjectStore.delete')
+  @DocsEditable()
+  Request _delete(Object key) =>
+      _blink.BlinkIDBObjectStore.instance.delete_Callback_1_(this, key);
+
+  @DomName('IDBObjectStore.deleteIndex')
+  @DocsEditable()
+  void deleteIndex(String name) =>
+      _blink.BlinkIDBObjectStore.instance.deleteIndex_Callback_1_(this, name);
+
+  @DomName('IDBObjectStore.get')
+  @DocsEditable()
+  Request _get(Object key) =>
+      _blink.BlinkIDBObjectStore.instance.get_Callback_1_(this, key);
+
+  Request getAll(Object range, [int maxCount]) {
+    if (maxCount != null) {
+      return _blink.BlinkIDBObjectStore.instance
+          .getAll_Callback_2_(this, range, maxCount);
+    }
+    return _blink.BlinkIDBObjectStore.instance.getAll_Callback_1_(this, range);
+  }
+
+  Request getAllKeys(Object range, [int maxCount]) {
+    if (maxCount != null) {
+      return _blink.BlinkIDBObjectStore.instance
+          .getAllKeys_Callback_2_(this, range, maxCount);
+    }
+    return _blink.BlinkIDBObjectStore.instance
+        .getAllKeys_Callback_1_(this, range);
+  }
+
+  @DomName('IDBObjectStore.index')
+  @DocsEditable()
+  Index index(String name) =>
+      _blink.BlinkIDBObjectStore.instance.index_Callback_1_(this, name);
+
+  Request _openCursor(Object range, [String direction]) {
+    if (direction != null) {
+      return _blink.BlinkIDBObjectStore.instance
+          .openCursor_Callback_2_(this, range, direction);
+    }
+    return _blink.BlinkIDBObjectStore.instance
+        .openCursor_Callback_1_(this, range);
+  }
+
+  Request openKeyCursor(Object range, [String direction]) {
+    if (direction != null) {
+      return _blink.BlinkIDBObjectStore.instance
+          .openKeyCursor_Callback_2_(this, range, direction);
+    }
+    return _blink.BlinkIDBObjectStore.instance
+        .openKeyCursor_Callback_1_(this, range);
+  }
+
+  Request _put(Object value, [Object key]) {
+    if (key != null) {
+      return _blink.BlinkIDBObjectStore.instance.put_Callback_2_(
+          this,
+          convertDartToNative_SerializedScriptValue(value),
+          convertDartToNative_SerializedScriptValue(key));
+    }
+    return _blink.BlinkIDBObjectStore.instance.put_Callback_1_(
+        this, convertDartToNative_SerializedScriptValue(value));
+  }
+
+  /**
+   * Helper for iterating over cursors in a request.
+   */
+  static Stream/*<T>*/ _cursorStreamFromResult/*<T extends Cursor>*/(
+      Request request, bool autoAdvance) {
+    // TODO: need to guarantee that the controller provides the values
+    // immediately as waiting until the next tick will cause the transaction to
+    // close.
+    var controller = new StreamController/*<T>*/(sync: true);
+
+    //TODO: Report stacktrace once issue 4061 is resolved.
+    request.onError.listen(controller.addError);
+
+    request.onSuccess.listen((e) {
+      var cursor = _cast/*<T>*/(request.result);
+      if (cursor == null) {
+        controller.close();
+      } else {
+        controller.add(cursor);
+        if (autoAdvance == true && controller.hasListener) {
+          cursor.next();
+        }
+      }
+    });
+    return controller.stream;
+  }
+}
+
+// ignore: STRONG_MODE_DOWN_CAST_COMPOSITE
+/*=To*/ _cast/*<To>*/(dynamic x) => x;
+// 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.
+
+// WARNING: Do not edit - generated code.
+
+@DocsEditable()
+@DomName('IDBOpenDBRequest')
+@Unstable()
+class OpenDBRequest extends Request {
+  // To suppress missing implicit constructor warnings.
+  factory OpenDBRequest._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  /**
+   * Static factory designed to expose `blocked` events to event
+   * handlers that are not necessarily instances of [OpenDBRequest].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBOpenDBRequest.blockedEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> blockedEvent =
+      const EventStreamProvider<Event>('blocked');
+
+  /**
+   * Static factory designed to expose `upgradeneeded` events to event
+   * handlers that are not necessarily instances of [OpenDBRequest].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBOpenDBRequest.upgradeneededEvent')
+  @DocsEditable()
+  static const EventStreamProvider<VersionChangeEvent> upgradeNeededEvent =
+      const EventStreamProvider<VersionChangeEvent>('upgradeneeded');
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  OpenDBRequest.internal_() : super.internal_();
+
+  /// Stream of `blocked` events handled by this [OpenDBRequest].
+  @DomName('IDBOpenDBRequest.onblocked')
+  @DocsEditable()
+  Stream<Event> get onBlocked => blockedEvent.forTarget(this);
+
+  /// Stream of `upgradeneeded` events handled by this [OpenDBRequest].
+  @DomName('IDBOpenDBRequest.onupgradeneeded')
+  @DocsEditable()
+  Stream<VersionChangeEvent> get onUpgradeNeeded =>
+      upgradeNeededEvent.forTarget(this);
+}
+// 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.
+
+// WARNING: Do not edit - generated code.
+
+@DocsEditable()
+@DomName('IDBRequest')
+@Unstable()
+class Request extends EventTarget {
+  // To suppress missing implicit constructor warnings.
+  factory Request._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  /**
+   * Static factory designed to expose `error` events to event
+   * handlers that are not necessarily instances of [Request].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBRequest.errorEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> errorEvent =
+      const EventStreamProvider<Event>('error');
+
+  /**
+   * Static factory designed to expose `success` events to event
+   * handlers that are not necessarily instances of [Request].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBRequest.successEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> successEvent =
+      const EventStreamProvider<Event>('success');
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  Request.internal_() : super.internal_();
+
+  @DomName('IDBRequest.error')
+  @DocsEditable()
+  DomException get error => _blink.BlinkIDBRequest.instance.error_Getter_(this);
+
+  @DomName('IDBRequest.readyState')
+  @DocsEditable()
+  String get readyState =>
+      _blink.BlinkIDBRequest.instance.readyState_Getter_(this);
+
+  @DomName('IDBRequest.result')
+  @DocsEditable()
+  Object get result => _convertNativeToDart_IDBAny(
+      _blink.BlinkIDBRequest.instance.result_Getter_(this));
+
+  @DomName('IDBRequest.source')
+  @DocsEditable()
+  Object get source => (_blink.BlinkIDBRequest.instance.source_Getter_(this));
+
+  @DomName('IDBRequest.transaction')
+  @DocsEditable()
+  Transaction get transaction =>
+      _blink.BlinkIDBRequest.instance.transaction_Getter_(this);
+
+  /// Stream of `error` events handled by this [Request].
+  @DomName('IDBRequest.onerror')
+  @DocsEditable()
+  Stream<Event> get onError => errorEvent.forTarget(this);
+
+  /// Stream of `success` events handled by this [Request].
+  @DomName('IDBRequest.onsuccess')
+  @DocsEditable()
+  Stream<Event> get onSuccess => successEvent.forTarget(this);
+}
+// 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('IDBTransaction')
+@Unstable()
+class Transaction extends EventTarget {
+  /**
+   * Provides a Future which will be completed once the transaction has
+   * completed.
+   *
+   * The future will error if an error occurrs on the transaction or if the
+   * transaction is aborted.
+   */
+  Future<Database> get completed {
+    var completer = new Completer<Database>();
+
+    this.onComplete.first.then((_) {
+      completer.complete(db);
+    });
+
+    this.onError.first.then((e) {
+      completer.completeError(e);
+    });
+
+    this.onAbort.first.then((e) {
+      // Avoid completing twice if an error occurs.
+      if (!completer.isCompleted) {
+        completer.completeError(e);
+      }
+    });
+
+    return completer.future;
+  }
+
+  // To suppress missing implicit constructor warnings.
+  factory Transaction._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  /**
+   * Static factory designed to expose `abort` events to event
+   * handlers that are not necessarily instances of [Transaction].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBTransaction.abortEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> abortEvent =
+      const EventStreamProvider<Event>('abort');
+
+  /**
+   * Static factory designed to expose `complete` events to event
+   * handlers that are not necessarily instances of [Transaction].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBTransaction.completeEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> completeEvent =
+      const EventStreamProvider<Event>('complete');
+
+  /**
+   * Static factory designed to expose `error` events to event
+   * handlers that are not necessarily instances of [Transaction].
+   *
+   * See [EventStreamProvider] for usage information.
+   */
+  @DomName('IDBTransaction.errorEvent')
+  @DocsEditable()
+  static const EventStreamProvider<Event> errorEvent =
+      const EventStreamProvider<Event>('error');
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  Transaction.internal_() : super.internal_();
+
+  @DomName('IDBTransaction.db')
+  @DocsEditable()
+  Database get db => _blink.BlinkIDBTransaction.instance.db_Getter_(this);
+
+  @DomName('IDBTransaction.error')
+  @DocsEditable()
+  DomException get error =>
+      _blink.BlinkIDBTransaction.instance.error_Getter_(this);
+
+  @DomName('IDBTransaction.mode')
+  @DocsEditable()
+  String get mode => _blink.BlinkIDBTransaction.instance.mode_Getter_(this);
+
+  @DomName('IDBTransaction.objectStoreNames')
+  @DocsEditable()
+  @Experimental() // untriaged
+  List<String> get objectStoreNames =>
+      _blink.BlinkIDBTransaction.instance.objectStoreNames_Getter_(this);
+
+  @DomName('IDBTransaction.abort')
+  @DocsEditable()
+  void abort() => _blink.BlinkIDBTransaction.instance.abort_Callback_0_(this);
+
+  @DomName('IDBTransaction.objectStore')
+  @DocsEditable()
+  ObjectStore objectStore(String name) =>
+      _blink.BlinkIDBTransaction.instance.objectStore_Callback_1_(this, name);
+
+  /// Stream of `abort` events handled by this [Transaction].
+  @DomName('IDBTransaction.onabort')
+  @DocsEditable()
+  Stream<Event> get onAbort => abortEvent.forTarget(this);
+
+  /// Stream of `complete` events handled by this [Transaction].
+  @DomName('IDBTransaction.oncomplete')
+  @DocsEditable()
+  Stream<Event> get onComplete => completeEvent.forTarget(this);
+
+  /// Stream of `error` events handled by this [Transaction].
+  @DomName('IDBTransaction.onerror')
+  @DocsEditable()
+  Stream<Event> get onError => errorEvent.forTarget(this);
+}
+// 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.
+
+// WARNING: Do not edit - generated code.
+
+@DocsEditable()
+@DomName('IDBVersionChangeEvent')
+@Unstable()
+class VersionChangeEvent extends Event {
+  // To suppress missing implicit constructor warnings.
+  factory VersionChangeEvent._() {
+    throw new UnsupportedError("Not supported");
+  }
+
+  @DomName('IDBVersionChangeEvent.IDBVersionChangeEvent')
+  @DocsEditable()
+  factory VersionChangeEvent(String type, [Map eventInitDict]) {
+    if (eventInitDict != null) {
+      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
+      return _blink.BlinkIDBVersionChangeEvent.instance
+          .constructorCallback_2_(type, eventInitDict_1);
+    }
+    return _blink.BlinkIDBVersionChangeEvent.instance
+        .constructorCallback_1_(type);
+  }
+
+  @Deprecated("Internal Use Only")
+  external static Type get instanceRuntimeType;
+
+  @Deprecated("Internal Use Only")
+  VersionChangeEvent.internal_() : super.internal_();
+
+  @DomName('IDBVersionChangeEvent.dataLoss')
+  @DocsEditable()
+  @Experimental() // untriaged
+  String get dataLoss =>
+      _blink.BlinkIDBVersionChangeEvent.instance.dataLoss_Getter_(this);
+
+  @DomName('IDBVersionChangeEvent.dataLossMessage')
+  @DocsEditable()
+  @Experimental() // untriaged
+  String get dataLossMessage =>
+      _blink.BlinkIDBVersionChangeEvent.instance.dataLossMessage_Getter_(this);
+
+  @DomName('IDBVersionChangeEvent.newVersion')
+  @DocsEditable()
+  int get newVersion =>
+      _blink.BlinkIDBVersionChangeEvent.instance.newVersion_Getter_(this);
+
+  @DomName('IDBVersionChangeEvent.oldVersion')
+  @DocsEditable()
+  int get oldVersion =>
+      _blink.BlinkIDBVersionChangeEvent.instance.oldVersion_Getter_(this);
+}