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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=8 et :
 */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

include protocol PBrowser;
include protocol PLayerTransaction;


using class nsRegion from "nsRegion.h";

namespace mozilla {
namespace layout {

/**
 * PRenderFrame (in the layout sense of "frame") represents one web
 * "page".  It's used to graft content processes' layer trees into
 * chrome's rendering path.  The lifetime of a PRenderFrame is tied to
 * its PresShell in the child process.
 *
 * The child process conceptually "owns" a PRenderFrame, because it
 * only makes sense wrt documents loaded by the child.
 */
sync protocol PRenderFrame
{
    manager PBrowser;

parent:
    async NotifyCompositorTransaction();

    async UpdateHitRegion(nsRegion aRegion);

    async __delete__();
};

} // namespace layout
} // namespace mozilla