Updated to Chrome 45 (2454) moved from SVN to git.

modules/compositorworker/CompositorWorker.idl

+// Copyright 2015 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.
+
+[
+    ActiveDOMObject,
+    Constructor(DOMString scriptUrl),
+    ConstructorCallWith=ExecutionContext,
+    RaisesException=Constructor,
+    RuntimeEnabled=CompositorWorker,
+    WillBeGarbageCollected,
+] interface CompositorWorker : EventTarget {
+    attribute EventHandler onmessage;
+    [PostMessage, RaisesException] void postMessage(SerializedScriptValue message, optional sequence<Transferable> transfer);
+    void terminate();
+};
+
+CompositorWorker implements AbstractWorker;