Add dummy dart:html library for documentation.

lib/html/doc/interface/SVGPointList.dart

Index: lib/html/doc/interface/SVGPointList.dart
diff --git a/lib/html/doc/interface/SVGPointList.dart b/lib/html/doc/interface/SVGPointList.dart
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index 0000000000000000000000000000000000000000..06561a6840ae3ff3eed09df81d49c5c7fbad07e0
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+++ b/lib/html/doc/interface/SVGPointList.dart
@@ -0,0 +1,33 @@
+// 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.
+
+/// @domName SVGPointList
+interface SVGPointList {
+
+  /** @domName SVGPointList.numberOfItems */
+  final int numberOfItems;
+
+  /** @domName SVGPointList.appendItem */
+  SVGPoint appendItem(SVGPoint item);
+
+  /** @domName SVGPointList.clear */
+  void clear();
+
+  /** @domName SVGPointList.getItem */
+  SVGPoint getItem(int index);
+
+  /** @domName SVGPointList.initialize */
+  SVGPoint initialize(SVGPoint item);
+
+  /** @domName SVGPointList.insertItemBefore */
+  SVGPoint insertItemBefore(SVGPoint item, int index);
+
+  /** @domName SVGPointList.removeItem */
+  SVGPoint removeItem(int index);
+
+  /** @domName SVGPointList.replaceItem */
+  SVGPoint replaceItem(SVGPoint item, int index);
+}