--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.chromium.sdk/src/org/chromium/sdk/internal/protocol/data/SomeRef.java	Wed Dec 23 17:13:18 2009 -0800
@@ -0,0 +1,30 @@
+// Copyright (c) 2009 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.
+
+package org.chromium.sdk.internal.protocol.data;
+
+import org.chromium.sdk.internal.protocolparser.JsonSubtype;
+import org.chromium.sdk.internal.protocolparser.JsonSubtypeCasting;
+import org.chromium.sdk.internal.protocolparser.JsonSubtypeCondition;
+import org.chromium.sdk.internal.protocolparser.JsonType;
+
+
+/**
+ * A reference form of object data serialization. Basically it only has one field "ref" that
+ * is "handle" of an object. Using this integer value as a key, all the object data may be
+ * requested (lookup'ed) from debugger. However some additional data may be available via subtype.
+ * <p>Gets serialized in mirror-delay.js,
+ * first part of JSONProtocolSerializer.prototype.serialize_
+ */
+@JsonType
+public interface SomeRef extends JsonSubtype<SomeSerialized> {
+  @JsonSubtypeCondition
+  long ref();
+
+  @JsonSubtypeCasting
+  RefWithDisplayData asWithDisplayData();
+
+  @JsonSubtypeCasting
+  void asJustSomeRef();
+}