Use generic functions in zones.

pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart

Index: pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart b/pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart
index 248f8aab63f82d426dd314f8ed25cfff534d3f1a..3864d7b4a06254bd223bf8b377a3fd4d5b202533 100644
--- a/pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart
+++ b/pkg/dev_compiler/tool/input_sdk/lib/html/dart2js/html_dart2js.dart
@@ -39,7 +39,7 @@ import 'dart:svg' show Matrix;
 import 'dart:svg' show SvgSvgElement;
 import 'dart:web_audio' as web_audio;
 import 'dart:web_gl' as gl;
-import 'dart:web_gl' show RenderingContext;
+import 'dart:web_gl' show RenderingContext, RenderingContext2;
 import 'dart:web_sql';
 import 'dart:_isolate_helper' show IsolateNatives;
 import 'dart:_foreign_helper' show JS, JS_INTERCEPTOR_CONSTANT;
@@ -2023,8 +2023,8 @@ class CanvasElement extends HtmlElement implements CanvasImageSource {
 
   @DomName('HTMLCanvasElement.getContext')
   @DocsEditable()
-  @Creates('CanvasRenderingContext2D|RenderingContext')
-  @Returns('CanvasRenderingContext2D|RenderingContext|Null')
+  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
+  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
   Object getContext(String contextId, [Map attributes]) {
     if (attributes != null) {
       var attributes_1 = convertDartToNative_Dictionary(attributes);
@@ -2036,14 +2036,14 @@ class CanvasElement extends HtmlElement implements CanvasImageSource {
   @JSName('getContext')
   @DomName('HTMLCanvasElement.getContext')
   @DocsEditable()
-  @Creates('CanvasRenderingContext2D|RenderingContext')
-  @Returns('CanvasRenderingContext2D|RenderingContext|Null')
+  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
+  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
   Object _getContext_1(contextId, attributes) native;
   @JSName('getContext')
   @DomName('HTMLCanvasElement.getContext')
   @DocsEditable()
-  @Creates('CanvasRenderingContext2D|RenderingContext')
-  @Returns('CanvasRenderingContext2D|RenderingContext|Null')
+  @Creates('CanvasRenderingContext2D|RenderingContext|RenderingContext2')
+  @Returns('CanvasRenderingContext2D|RenderingContext|RenderingContext2|Null')
   Object _getContext_2(contextId) native;
 
   @DomName('HTMLCanvasElement.toBlob')
@@ -26201,6 +26201,10 @@ class _ChildNodeListLazy extends ListBase<Node> implements NodeListWrapper {
   void fillRange(int start, int end, [Node fill]) {
     throw new UnsupportedError("Cannot fillRange on Node list");
   }
+
+  void removeRange(int start, int end) {
+    throw new UnsupportedError("Cannot removeRange on Node list");
+  }
   // -- end List<Node> mixins.
 
   // TODO(jacobr): benchmark whether this is more efficient or whether caching
@@ -36968,7 +36972,7 @@ class Window extends EventTarget
   @DomName('Window.requestAnimationFrame')
   int requestAnimationFrame(FrameRequestCallback callback) {
     _ensureRequestAnimationFrame();
-    return _requestAnimationFrame(_wrapZone/*<num, dynamic>*/(callback));
+    return _requestAnimationFrame(_wrapZone(callback));
   }
 
   /**
@@ -42906,9 +42910,9 @@ class _EventStreamSubscription<T extends Event> extends StreamSubscription<T> {
 
   // TODO(leafp): It would be better to write this as
   // _onData = onData == null ? null :
-  //   onData is _wrapZoneCallback<Event, dynamic>
-  //     ? _wrapZone/*<Event, dynamic>*/(onData)
-  //     : _wrapZone/*<Event, dynamic>*/((e) => onData(e as T))
+  //   onData is void Function(Event)
+  //     ? _wrapZone<Event>(onData)
+  //     : _wrapZone<Event>((e) => onData(e as T))
   // In order to support existing tests which pass the wrong type of events but
   // use a more general listener, without causing as much slowdown for things
   // which are typed correctly.  But this currently runs afoul of restrictions
@@ -42917,7 +42921,7 @@ 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>((e) => (onData as dynamic)(e)) {
     _tryResume();
   }
 
@@ -42939,7 +42943,7 @@ class _EventStreamSubscription<T extends Event> extends StreamSubscription<T> {
     }
     // Remove current event listener.
     _unlisten();
-    _onData = _wrapZone/*<Event, dynamic>*/(handleData);
+    _onData = _wrapZone<Event>(handleData);
     _tryResume();
   }
 
@@ -46314,24 +46318,18 @@ class _WrappedEvent implements Event {
 // 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.
 
-// TODO(jacobr): remove these typedefs when dart:async supports generic types.
-typedef R _wrapZoneCallback<A, R>(A a);
-typedef R _wrapZoneBinaryCallback<A, B, R>(A a, B b);
-
-_wrapZoneCallback/*<A, R>*/ _wrapZone/*<A, R>*/(
-    _wrapZoneCallback/*<A, R>*/ callback) {
+void Function(T) _wrapZone<T>(void Function(T) callback) {
   // For performance reasons avoid wrapping if we are in the root zone.
   if (Zone.current == Zone.ROOT) return callback;
   if (callback == null) return null;
-  return Zone.current.bindUnaryCallback/*<R, A>*/(callback, runGuarded: true);
+  return Zone.current.bindUnaryCallbackGuarded(callback);
 }
 
-_wrapZoneBinaryCallback/*<A, B, R>*/ _wrapBinaryZone/*<A, B, R>*/(
-    _wrapZoneBinaryCallback/*<A, B, R>*/ callback) {
+void Function(T1, T2) _wrapBinaryZone<T1, T2>(void Function(T1, T2) callback) {
+  // For performance reasons avoid wrapping if we are in the root zone.
   if (Zone.current == Zone.ROOT) return callback;
   if (callback == null) return null;
-  return Zone.current
-      .bindBinaryCallback/*<R, A, B>*/(callback, runGuarded: true);
+  return Zone.current.bindBinaryCallbackGuarded(callback);
 }
 
 /**