Making Document, Element and Window documentable via @DocsEditable

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 4682b6c179deff2050c272ee282aecc581700d9d..2070145e4ba82c3737ce2ac0d1b042e32e53260c 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -7492,6 +7492,7 @@ class DivElement extends HtmlElement {
 // BSD-style license that can be found in the LICENSE file.
 
 
+@DocsEditable
 /**
  * The base class for all documents.
  *
@@ -9345,6 +9346,7 @@ class _FrozenElementList<T extends Element> extends ListBase<T> implements Eleme
 
 }
 
+@DocsEditable
 /**
  * An abstract class, which all HTML elements extend.
  */
@@ -26677,6 +26679,7 @@ class WheelEvent extends MouseEvent {
 // BSD-style license that can be found in the LICENSE file.
 
 
+@DocsEditable
 @DomName('Window')
 class Window extends EventTarget implements WindowBase, WindowTimers, WindowBase64 {