Don't generate dom_deprecated files at all.

lib/dom/templates/dom/dart2js/impl_DOMWindow.darttemplate

Index: lib/dom/templates/dom/dart2js/impl_DOMWindow.darttemplate
===================================================================
--- lib/dom/templates/dom/dart2js/impl_DOMWindow.darttemplate	(revision 11969)
+++ lib/dom/templates/dom/dart2js/impl_DOMWindow.darttemplate	(working copy)
@@ -1,30 +0,0 @@
-// 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.
-
-class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
-
-  Window get _top() native "return this.top;";
-
-  // Override top to return secure wrapper.
-  Window get top() => _DOMWindowCrossFrameImpl._createSafe(_top);
-
-  int requestAnimationFrame(RequestAnimationFrameCallback callback) native '''
-    if (!window.requestAnimationFrame) {
-      window.requestAnimationFrame =
-          window.webkitRequestAnimationFrame ||
-          window.mozRequestAnimationFrame ||
-          window.msRequestAnimationFrame ||
-          window.oRequestAnimationFrame ||
-          function (callback) {
-            window.setTimeout(callback, 16 /* 16ms ~= 60fps */);
-          };
-    }
-    return window.requestAnimationFrame(callback);
-''';
-
-  // Protect member 'requestAnimationFrame'.
-  _requestAnimationFrame() native 'requestAnimationFrame';
-
-$!MEMBERS
-}