Pass origin information for remote frame creation.

content/common/frame_replication_state.h

+// 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.
+
+#ifndef CONTENT_COMMON_FRAME_REPLICATION_STATE_H_
+#define CONTENT_COMMON_FRAME_REPLICATION_STATE_H_
+
+#include "content/common/content_export.h"
+#include "url/origin.h"
+
+namespace content {
+
+// This structure holds information that needs to be replicated from a
+// RenderFrame to any of its associated RenderFrameProxies.
+struct CONTENT_EXPORT FrameReplicationState {
+  FrameReplicationState();
+  ~FrameReplicationState();
+
+  // Current serialized security origin of the frame. Unique origins are
+  // represented as the string "null" per RFC 6454.
+  url::Origin origin;
+
+  // TODO(alexmos): Eventually, this structure can also hold other state that
+  // needs to be replicated, such as frame sizing info.
+};
+
+}  // namespace content
+
+#endif // CONTENT_COMMON_FRAME_REPLICATION_STATE_H_