Cherry-picks of multiple html CLs

sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 257bfae68caaa9778c86426570b6461d56862cef..008c374b97438bc3252fafe416d7e5c8c39d375f 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -252,7 +252,6 @@ final htmlBlinkMap = {
   'Document': () => Document.instanceRuntimeType,
   'DocumentFragment': () => DocumentFragment.instanceRuntimeType,
   'DocumentType': () => _DocumentType.instanceRuntimeType,
-  'DragEvent': () => DragEvent.instanceRuntimeType,
   'EffectModel': () => EffectModel.instanceRuntimeType,
   'Element': () => Element.instanceRuntimeType,
   'Entry': () => Entry.instanceRuntimeType,
@@ -517,7 +516,6 @@ final htmlBlinkMap = {
   'ResourceProgressEvent': () => _ResourceProgressEvent.instanceRuntimeType,
   'Response': () => _Response.instanceRuntimeType,
   'Rotation': () => Rotation.instanceRuntimeType,
-  'Scale': () => Scale.instanceRuntimeType,
   'Screen': () => Screen.instanceRuntimeType,
   'ScreenOrientation': () => ScreenOrientation.instanceRuntimeType,
   'ScrollState': () => ScrollState.instanceRuntimeType,
@@ -11092,37 +11090,37 @@ class Document extends Node {
   /// Stream of `drag` events handled by this [Document].
   @DomName('Document.ondrag')
   @DocsEditable()
-  Stream<DragEvent> get onDrag => Element.dragEvent.forTarget(this);
+  Stream<MouseEvent> get onDrag => Element.dragEvent.forTarget(this);
 
   /// Stream of `dragend` events handled by this [Document].
   @DomName('Document.ondragend')
   @DocsEditable()
-  Stream<DragEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);
 
   /// Stream of `dragenter` events handled by this [Document].
   @DomName('Document.ondragenter')
   @DocsEditable()
-  Stream<DragEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);
 
   /// Stream of `dragleave` events handled by this [Document].
   @DomName('Document.ondragleave')
   @DocsEditable()
-  Stream<DragEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);
+  Stream<MouseEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);
 
   /// Stream of `dragover` events handled by this [Document].
   @DomName('Document.ondragover')
   @DocsEditable()
-  Stream<DragEvent> get onDragOver => Element.dragOverEvent.forTarget(this);
+  Stream<MouseEvent> get onDragOver => Element.dragOverEvent.forTarget(this);
 
   /// Stream of `dragstart` events handled by this [Document].
   @DomName('Document.ondragstart')
   @DocsEditable()
-  Stream<DragEvent> get onDragStart => Element.dragStartEvent.forTarget(this);
+  Stream<MouseEvent> get onDragStart => Element.dragStartEvent.forTarget(this);
 
   /// Stream of `drop` events handled by this [Document].
   @DomName('Document.ondrop')
   @DocsEditable()
-  Stream<DragEvent> get onDrop => Element.dropEvent.forTarget(this);
+  Stream<MouseEvent> get onDrop => Element.dropEvent.forTarget(this);
 
   @DomName('Document.ondurationchange')
   @DocsEditable()
@@ -12955,44 +12953,6 @@ class DomTokenList extends DartHtmlDomObject {
 // WARNING: Do not edit - generated code.
 
 @DocsEditable()
-@DomName('DragEvent')
-@Experimental() // untriaged
-class DragEvent extends MouseEvent {
-  // To suppress missing implicit constructor warnings.
-  factory DragEvent._() {
-    throw new UnsupportedError("Not supported");
-  }
-
-  @DomName('DragEvent.DragEvent')
-  @DocsEditable()
-  factory DragEvent(String type, [Map eventInitDict]) {
-    if (eventInitDict != null) {
-      var eventInitDict_1 = convertDartToNative_Dictionary(eventInitDict);
-      return _blink.BlinkDragEvent.instance
-          .constructorCallback_2_(type, eventInitDict_1);
-    }
-    return _blink.BlinkDragEvent.instance.constructorCallback_1_(type);
-  }
-
-  @Deprecated("Internal Use Only")
-  external static Type get instanceRuntimeType;
-
-  @Deprecated("Internal Use Only")
-  DragEvent.internal_() : super.internal_();
-
-  @DomName('DragEvent.dataTransfer')
-  @DocsEditable()
-  @Experimental() // untriaged
-  DataTransfer get dataTransfer =>
-      _blink.BlinkDragEvent.instance.dataTransfer_Getter_(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('EffectModel')
 @Experimental() // untriaged
 class EffectModel extends DartHtmlDomObject {
@@ -13341,7 +13301,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondrag')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrag;
+  ElementStream<MouseEvent> get onDrag;
 
   /**
    * A stream of `dragend` events fired when this element completes a drag
@@ -13359,7 +13319,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondragend')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnd;
+  ElementStream<MouseEvent> get onDragEnd;
 
   /**
    * A stream of `dragenter` events fired when a dragged object is first dragged
@@ -13377,7 +13337,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondragenter')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnter;
+  ElementStream<MouseEvent> get onDragEnter;
 
   /**
    * A stream of `dragleave` events fired when an object being dragged over this
@@ -13395,7 +13355,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondragleave')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragLeave;
+  ElementStream<MouseEvent> get onDragLeave;
 
   /**
    * A stream of `dragover` events fired when a dragged object is currently
@@ -13413,7 +13373,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondragover')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragOver;
+  ElementStream<MouseEvent> get onDragOver;
 
   /**
    * A stream of `dragstart` events fired when this element starts being
@@ -13431,7 +13391,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondragstart')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragStart;
+  ElementStream<MouseEvent> get onDragStart;
 
   /**
    * A stream of `drop` events fired when a dragged object is dropped on this
@@ -13449,7 +13409,7 @@ abstract class ElementList<T extends Element> extends ListBase<T> {
    */
   @DomName('Element.ondrop')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrop;
+  ElementStream<MouseEvent> get onDrop;
 
   @DomName('Element.ondurationchange')
   @DocsEditable()
@@ -13885,7 +13845,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondrag')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrag =>
+  ElementStream<MouseEvent> get onDrag =>
       Element.dragEvent._forElementList(this);
 
   /**
@@ -13904,7 +13864,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondragend')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnd =>
+  ElementStream<MouseEvent> get onDragEnd =>
       Element.dragEndEvent._forElementList(this);
 
   /**
@@ -13923,7 +13883,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondragenter')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnter =>
+  ElementStream<MouseEvent> get onDragEnter =>
       Element.dragEnterEvent._forElementList(this);
 
   /**
@@ -13942,7 +13902,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondragleave')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragLeave =>
+  ElementStream<MouseEvent> get onDragLeave =>
       Element.dragLeaveEvent._forElementList(this);
 
   /**
@@ -13961,7 +13921,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondragover')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragOver =>
+  ElementStream<MouseEvent> get onDragOver =>
       Element.dragOverEvent._forElementList(this);
 
   /**
@@ -13980,7 +13940,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondragstart')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragStart =>
+  ElementStream<MouseEvent> get onDragStart =>
       Element.dragStartEvent._forElementList(this);
 
   /**
@@ -13999,7 +13959,7 @@ class _FrozenElementList<E extends Element> extends ListBase<E>
    */
   @DomName('Element.ondrop')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrop =>
+  ElementStream<MouseEvent> get onDrop =>
       Element.dropEvent._forElementList(this);
 
   @DomName('Element.ondurationchange')
@@ -15546,8 +15506,8 @@ class Element extends Node
    */
   @DomName('Element.dragEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragEvent =
-      const EventStreamProvider<DragEvent>('drag');
+  static const EventStreamProvider<MouseEvent> dragEvent =
+      const EventStreamProvider<MouseEvent>('drag');
 
   /**
    * A stream of `dragend` events fired when an element completes a drag
@@ -15565,8 +15525,8 @@ class Element extends Node
    */
   @DomName('Element.dragendEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragEndEvent =
-      const EventStreamProvider<DragEvent>('dragend');
+  static const EventStreamProvider<MouseEvent> dragEndEvent =
+      const EventStreamProvider<MouseEvent>('dragend');
 
   /**
    * A stream of `dragenter` events fired when a dragged object is first dragged
@@ -15584,8 +15544,8 @@ class Element extends Node
    */
   @DomName('Element.dragenterEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragEnterEvent =
-      const EventStreamProvider<DragEvent>('dragenter');
+  static const EventStreamProvider<MouseEvent> dragEnterEvent =
+      const EventStreamProvider<MouseEvent>('dragenter');
 
   /**
    * A stream of `dragleave` events fired when an object being dragged over an
@@ -15603,8 +15563,8 @@ class Element extends Node
    */
   @DomName('Element.dragleaveEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragLeaveEvent =
-      const EventStreamProvider<DragEvent>('dragleave');
+  static const EventStreamProvider<MouseEvent> dragLeaveEvent =
+      const EventStreamProvider<MouseEvent>('dragleave');
 
   /**
    * A stream of `dragover` events fired when a dragged object is currently
@@ -15622,8 +15582,8 @@ class Element extends Node
    */
   @DomName('Element.dragoverEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragOverEvent =
-      const EventStreamProvider<DragEvent>('dragover');
+  static const EventStreamProvider<MouseEvent> dragOverEvent =
+      const EventStreamProvider<MouseEvent>('dragover');
 
   /**
    * A stream of `dragstart` events for a dragged element whose drag has begun.
@@ -15640,8 +15600,8 @@ class Element extends Node
    */
   @DomName('Element.dragstartEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dragStartEvent =
-      const EventStreamProvider<DragEvent>('dragstart');
+  static const EventStreamProvider<MouseEvent> dragStartEvent =
+      const EventStreamProvider<MouseEvent>('dragstart');
 
   /**
    * A stream of `drop` events fired when a dragged object is dropped on an
@@ -15659,8 +15619,8 @@ class Element extends Node
    */
   @DomName('Element.dropEvent')
   @DocsEditable()
-  static const EventStreamProvider<DragEvent> dropEvent =
-      const EventStreamProvider<DragEvent>('drop');
+  static const EventStreamProvider<MouseEvent> dropEvent =
+      const EventStreamProvider<MouseEvent>('drop');
 
   @DomName('Element.durationchangeEvent')
   @DocsEditable()
@@ -16725,7 +16685,7 @@ class Element extends Node
    */
   @DomName('Element.ondrag')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrag => dragEvent.forElement(this);
+  ElementStream<MouseEvent> get onDrag => dragEvent.forElement(this);
 
   /**
    * A stream of `dragend` events fired when this element completes a drag
@@ -16743,7 +16703,7 @@ class Element extends Node
    */
   @DomName('Element.ondragend')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnd => dragEndEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragEnd => dragEndEvent.forElement(this);
 
   /**
    * A stream of `dragenter` events fired when a dragged object is first dragged
@@ -16761,7 +16721,7 @@ class Element extends Node
    */
   @DomName('Element.ondragenter')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragEnter => dragEnterEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragEnter => dragEnterEvent.forElement(this);
 
   /**
    * A stream of `dragleave` events fired when an object being dragged over this
@@ -16779,7 +16739,7 @@ class Element extends Node
    */
   @DomName('Element.ondragleave')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragLeave => dragLeaveEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragLeave => dragLeaveEvent.forElement(this);
 
   /**
    * A stream of `dragover` events fired when a dragged object is currently
@@ -16797,7 +16757,7 @@ class Element extends Node
    */
   @DomName('Element.ondragover')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragOver => dragOverEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragOver => dragOverEvent.forElement(this);
 
   /**
    * A stream of `dragstart` events fired when this element starts being
@@ -16815,7 +16775,7 @@ class Element extends Node
    */
   @DomName('Element.ondragstart')
   @DocsEditable()
-  ElementStream<DragEvent> get onDragStart => dragStartEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragStart => dragStartEvent.forElement(this);
 
   /**
    * A stream of `drop` events fired when a dragged object is dropped on this
@@ -16833,7 +16793,7 @@ class Element extends Node
    */
   @DomName('Element.ondrop')
   @DocsEditable()
-  ElementStream<DragEvent> get onDrop => dropEvent.forElement(this);
+  ElementStream<MouseEvent> get onDrop => dropEvent.forElement(this);
 
   @DomName('Element.ondurationchange')
   @DocsEditable()
@@ -17859,7 +17819,7 @@ class Events {
 
   Events(this._ptr);
 
-  Stream operator [](String type) {
+  Stream<Event> operator [](String type) {
     return new _EventStream(_ptr, type, false);
   }
 }
@@ -17884,7 +17844,7 @@ class ElementEvents extends Events {
 
   ElementEvents(Element ptr) : super(ptr);
 
-  Stream operator [](String type) {
+  Stream<Event> operator [](String type) {
     if (webkitEvents.keys.contains(type.toLowerCase())) {
       if (Device.isWebKit) {
         return new _ElementEventStreamImpl(
@@ -17949,8 +17909,7 @@ class EventTarget extends DartHtmlDomObject {
 
   @DomName('EventTarget.addEventListener')
   @DocsEditable()
-  void _addEventListener(String type, EventListener listener,
-          [Object options]) =>
+  void _addEventListener(String type, EventListener listener, [bool options]) =>
       _blink.BlinkEventTarget.instance
           .addEventListener_Callback_3_(this, type, listener, options);
 
@@ -17962,7 +17921,7 @@ class EventTarget extends DartHtmlDomObject {
   @DomName('EventTarget.removeEventListener')
   @DocsEditable()
   void _removeEventListener(String type, EventListener listener,
-          [Object options]) =>
+          [bool options]) =>
       _blink.BlinkEventTarget.instance
           .removeEventListener_Callback_3_(this, type, listener, options);
 }
@@ -19918,44 +19877,44 @@ abstract class GlobalEventHandlers implements EventTarget {
   @DomName('GlobalEventHandlers.dragEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEvent =
-      const EventStreamProvider<DragEvent>('drag');
+  static const EventStreamProvider<MouseEvent> dragEvent =
+      const EventStreamProvider<MouseEvent>('drag');
 
   @DomName('GlobalEventHandlers.dragendEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEndEvent =
-      const EventStreamProvider<DragEvent>('dragend');
+  static const EventStreamProvider<MouseEvent> dragEndEvent =
+      const EventStreamProvider<MouseEvent>('dragend');
 
   @DomName('GlobalEventHandlers.dragenterEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEnterEvent =
-      const EventStreamProvider<DragEvent>('dragenter');
+  static const EventStreamProvider<MouseEvent> dragEnterEvent =
+      const EventStreamProvider<MouseEvent>('dragenter');
 
   @DomName('GlobalEventHandlers.dragleaveEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragLeaveEvent =
-      const EventStreamProvider<DragEvent>('dragleave');
+  static const EventStreamProvider<MouseEvent> dragLeaveEvent =
+      const EventStreamProvider<MouseEvent>('dragleave');
 
   @DomName('GlobalEventHandlers.dragoverEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragOverEvent =
-      const EventStreamProvider<DragEvent>('dragover');
+  static const EventStreamProvider<MouseEvent> dragOverEvent =
+      const EventStreamProvider<MouseEvent>('dragover');
 
   @DomName('GlobalEventHandlers.dragstartEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragStartEvent =
-      const EventStreamProvider<DragEvent>('dragstart');
+  static const EventStreamProvider<MouseEvent> dragStartEvent =
+      const EventStreamProvider<MouseEvent>('dragstart');
 
   @DomName('GlobalEventHandlers.dropEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dropEvent =
-      const EventStreamProvider<DragEvent>('drop');
+  static const EventStreamProvider<MouseEvent> dropEvent =
+      const EventStreamProvider<MouseEvent>('drop');
 
   @DomName('GlobalEventHandlers.durationchangeEvent')
   @DocsEditable()
@@ -20246,37 +20205,37 @@ abstract class GlobalEventHandlers implements EventTarget {
   @DomName('GlobalEventHandlers.ondrag')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDrag => dragEvent.forTarget(this);
+  Stream<MouseEvent> get onDrag => dragEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondragend')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDragEnd => dragEndEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnd => dragEndEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondragenter')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDragEnter => dragEnterEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnter => dragEnterEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondragleave')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDragLeave => dragLeaveEvent.forTarget(this);
+  Stream<MouseEvent> get onDragLeave => dragLeaveEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondragover')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDragOver => dragOverEvent.forTarget(this);
+  Stream<MouseEvent> get onDragOver => dragOverEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondragstart')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDragStart => dragStartEvent.forTarget(this);
+  Stream<MouseEvent> get onDragStart => dragStartEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondrop')
   @DocsEditable()
   @Experimental() // untriaged
-  Stream<DragEvent> get onDrop => dropEvent.forTarget(this);
+  Stream<MouseEvent> get onDrop => dropEvent.forTarget(this);
 
   @DomName('GlobalEventHandlers.ondurationchange')
   @DocsEditable()
@@ -21460,44 +21419,44 @@ class HtmlElement extends Element implements GlobalEventHandlers {
   @DomName('HTMLElement.dragEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEvent =
-      const EventStreamProvider<DragEvent>('drag');
+  static const EventStreamProvider<MouseEvent> dragEvent =
+      const EventStreamProvider<MouseEvent>('drag');
 
   @DomName('HTMLElement.dragendEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEndEvent =
-      const EventStreamProvider<DragEvent>('dragend');
+  static const EventStreamProvider<MouseEvent> dragEndEvent =
+      const EventStreamProvider<MouseEvent>('dragend');
 
   @DomName('HTMLElement.dragenterEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragEnterEvent =
-      const EventStreamProvider<DragEvent>('dragenter');
+  static const EventStreamProvider<MouseEvent> dragEnterEvent =
+      const EventStreamProvider<MouseEvent>('dragenter');
 
   @DomName('HTMLElement.dragleaveEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragLeaveEvent =
-      const EventStreamProvider<DragEvent>('dragleave');
+  static const EventStreamProvider<MouseEvent> dragLeaveEvent =
+      const EventStreamProvider<MouseEvent>('dragleave');
 
   @DomName('HTMLElement.dragoverEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragOverEvent =
-      const EventStreamProvider<DragEvent>('dragover');
+  static const EventStreamProvider<MouseEvent> dragOverEvent =
+      const EventStreamProvider<MouseEvent>('dragover');
 
   @DomName('HTMLElement.dragstartEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dragStartEvent =
-      const EventStreamProvider<DragEvent>('dragstart');
+  static const EventStreamProvider<MouseEvent> dragStartEvent =
+      const EventStreamProvider<MouseEvent>('dragstart');
 
   @DomName('HTMLElement.dropEvent')
   @DocsEditable()
   @Experimental() // untriaged
-  static const EventStreamProvider<DragEvent> dropEvent =
-      const EventStreamProvider<DragEvent>('drop');
+  static const EventStreamProvider<MouseEvent> dropEvent =
+      const EventStreamProvider<MouseEvent>('drop');
 
   @DomName('HTMLElement.durationchangeEvent')
   @DocsEditable()
@@ -21947,37 +21906,37 @@ class HtmlElement extends Element implements GlobalEventHandlers {
   @DomName('HTMLElement.ondrag')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDrag => dragEvent.forElement(this);
+  ElementStream<MouseEvent> get onDrag => dragEvent.forElement(this);
 
   @DomName('HTMLElement.ondragend')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDragEnd => dragEndEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragEnd => dragEndEvent.forElement(this);
 
   @DomName('HTMLElement.ondragenter')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDragEnter => dragEnterEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragEnter => dragEnterEvent.forElement(this);
 
   @DomName('HTMLElement.ondragleave')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDragLeave => dragLeaveEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragLeave => dragLeaveEvent.forElement(this);
 
   @DomName('HTMLElement.ondragover')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDragOver => dragOverEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragOver => dragOverEvent.forElement(this);
 
   @DomName('HTMLElement.ondragstart')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDragStart => dragStartEvent.forElement(this);
+  ElementStream<MouseEvent> get onDragStart => dragStartEvent.forElement(this);
 
   @DomName('HTMLElement.ondrop')
   @DocsEditable()
   @Experimental() // untriaged
-  ElementStream<DragEvent> get onDrop => dropEvent.forElement(this);
+  ElementStream<MouseEvent> get onDrop => dropEvent.forElement(this);
 
   @DomName('HTMLElement.ondurationchange')
   @DocsEditable()
@@ -29036,6 +28995,10 @@ class MouseEvent extends UIEvent {
   @DomName('MouseEvent.pageX')
   @DomName('MouseEvent.pageY')
   Point get page => new Point/*<num>*/(_pageX, _pageY);
+
+  @DomName('MouseEvent.dataTransfer')
+  DataTransfer get dataTransfer =>
+      js.JsNative.getProperty(js.context, 'dataTransfer');
 }
 // 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
@@ -35097,54 +35060,6 @@ class RtcStatsResponse extends DartHtmlDomObject {
   List<RtcStatsReport> result() =>
       _blink.BlinkRTCStatsResponse.instance.result_Callback_0_(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('Scale')
-@Experimental() // untriaged
-class Scale extends TransformComponent {
-  // To suppress missing implicit constructor warnings.
-  factory Scale._() {
-    throw new UnsupportedError("Not supported");
-  }
-
-  @DomName('Scale.Scale')
-  @DocsEditable()
-  factory Scale(num x, num y, [num z]) {
-    if ((y is num) && (x is num) && z == null) {
-      return _blink.BlinkScale.instance.constructorCallback_2_(x, y);
-    }
-    if ((z is num) && (y is num) && (x is num)) {
-      return _blink.BlinkScale.instance.constructorCallback_3_(x, y, z);
-    }
-    throw new ArgumentError("Incorrect number or type of arguments");
-  }
-
-  @Deprecated("Internal Use Only")
-  external static Type get instanceRuntimeType;
-
-  @Deprecated("Internal Use Only")
-  Scale.internal_() : super.internal_();
-
-  @DomName('Scale.x')
-  @DocsEditable()
-  @Experimental() // untriaged
-  num get x => _blink.BlinkScale.instance.x_Getter_(this);
-
-  @DomName('Scale.y')
-  @DocsEditable()
-  @Experimental() // untriaged
-  num get y => _blink.BlinkScale.instance.y_Getter_(this);
-
-  @DomName('Scale.z')
-  @DocsEditable()
-  @Experimental() // untriaged
-  num get z => _blink.BlinkScale.instance.z_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.
@@ -35792,8 +35707,8 @@ class SelectElement extends HtmlElement {
   // Override default options, since IE returns SelectElement itself and it
   // does not operate as a List.
   List<OptionElement> get options {
-    var options = new List<OptionElement>.from(this.querySelectorAll('option'));
-    return new UnmodifiableListView(options);
+    var options = this.querySelectorAll<OptionElement>('option');
+    return new UnmodifiableListView(options.toList());
   }
 
   List<OptionElement> get selectedOptions {
@@ -41366,11 +41281,11 @@ class Url extends DartHtmlDomObject implements UrlUtils {
       return _blink.BlinkURL.instance
           .createObjectURL_Callback_1_(blob_OR_source_OR_stream);
     }
-    if ((blob_OR_source_OR_stream is MediaSource)) {
+    if ((blob_OR_source_OR_stream is MediaStream)) {
       return _blink.BlinkURL.instance
           .createObjectURL_Callback_1_(blob_OR_source_OR_stream);
     }
-    if ((blob_OR_source_OR_stream is MediaStream)) {
+    if ((blob_OR_source_OR_stream is MediaSource)) {
       return _blink.BlinkURL.instance
           .createObjectURL_Callback_1_(blob_OR_source_OR_stream);
     }
@@ -44345,37 +44260,37 @@ class Window extends EventTarget
   /// Stream of `drag` events handled by this [Window].
   @DomName('Window.ondrag')
   @DocsEditable()
-  Stream<DragEvent> get onDrag => Element.dragEvent.forTarget(this);
+  Stream<MouseEvent> get onDrag => Element.dragEvent.forTarget(this);
 
   /// Stream of `dragend` events handled by this [Window].
   @DomName('Window.ondragend')
   @DocsEditable()
-  Stream<DragEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnd => Element.dragEndEvent.forTarget(this);
 
   /// Stream of `dragenter` events handled by this [Window].
   @DomName('Window.ondragenter')
   @DocsEditable()
-  Stream<DragEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);
+  Stream<MouseEvent> get onDragEnter => Element.dragEnterEvent.forTarget(this);
 
   /// Stream of `dragleave` events handled by this [Window].
   @DomName('Window.ondragleave')
   @DocsEditable()
-  Stream<DragEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);
+  Stream<MouseEvent> get onDragLeave => Element.dragLeaveEvent.forTarget(this);
 
   /// Stream of `dragover` events handled by this [Window].
   @DomName('Window.ondragover')
   @DocsEditable()
-  Stream<DragEvent> get onDragOver => Element.dragOverEvent.forTarget(this);
+  Stream<MouseEvent> get onDragOver => Element.dragOverEvent.forTarget(this);
 
   /// Stream of `dragstart` events handled by this [Window].
   @DomName('Window.ondragstart')
   @DocsEditable()
-  Stream<DragEvent> get onDragStart => Element.dragStartEvent.forTarget(this);
+  Stream<MouseEvent> get onDragStart => Element.dragStartEvent.forTarget(this);
 
   /// Stream of `drop` events handled by this [Window].
   @DomName('Window.ondrop')
   @DocsEditable()
-  Stream<DragEvent> get onDrop => Element.dropEvent.forTarget(this);
+  Stream<MouseEvent> get onDrop => Element.dropEvent.forTarget(this);
 
   @DomName('Window.ondurationchange')
   @DocsEditable()
@@ -49143,7 +49058,7 @@ class _EventStreamSubscription<T extends Event> extends StreamSubscription<T> {
       this._target, this._eventType, void onData(T event), this._useCapture)
       : _onData = onData == null
             ? null
-            : _wrapZone/*<Event, dynamic>*/((e) => (onData as dynamic)(e)) {
+            : _wrapZone<Event, dynamic>((e) => (onData as dynamic)(e)) {
     _tryResume();
   }