Blink JavaScript shared memory prototype.

Source/core/dom/LockManager.idl

Index: Source/core/dom/LockManager.idl
diff --git a/Source/core/dom/MessageChannel.idl b/Source/core/dom/LockManager.idl
similarity index 84%
copy from Source/core/dom/MessageChannel.idl
copy to Source/core/dom/LockManager.idl
index fbd8babde20f3352d2304ebfff458aa3737590cf..a38d4b624544a2076d1d70cae560bd91d290c82c 100644
--- a/Source/core/dom/MessageChannel.idl
+++ b/Source/core/dom/LockManager.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008, 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2014 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -27,8 +27,10 @@
 [
     CustomConstructor,
     GlobalContext=Window&WorkerGlobalScope,
-] interface MessageChannel {
-    readonly attribute MessagePort port1;
-    readonly attribute MessagePort port2;
-};
+] interface LockManager {
+    [Custom, RaisesException] void lock(unsigned long uid);
+    [Custom, RaisesException] void unlock(unsigned long uid);
 
+    // HACK for performance testing.
+    void nop();
+};