Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/app/AbstractModule.idl

Index: sky/engine/core/app/AbstractModule.idl
diff --git a/sky/engine/core/app/AbstractModule.idl b/sky/engine/core/app/AbstractModule.idl
deleted file mode 100644
index 1a43aac10bd5b15c7c1e5bff93b33dd6fc962fb3..0000000000000000000000000000000000000000
--- a/sky/engine/core/app/AbstractModule.idl
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-interface AbstractModule : EventTarget {
-    readonly attribute Document document;
-    readonly attribute DOMString url;
-
-    [CallWith=ScriptState]
-    Promise<any> import(DOMString url);
-
-    // FIXME:
-    // readonly attribute Element? currentScript;
-};