/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
/* 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 "mozilla/dom/TabMessageUtils.h";
include protocol PBrowser;
using mozilla::OriginAttributes from "mozilla/ipc/BackgroundUtils.h";
namespace mozilla {
namespace dom {
// An IPCTabContext which corresponds to a PBrowser opened by a child when it
// receives window.open().
struct PopupIPCTabContext
{
PBrowser opener;
uint64_t chromeOuterWindowID;
};
// An IPCTabContext which corresponds to an app, browser, or normal frame.
struct FrameIPCTabContext
{
uint64_t chromeOuterWindowID;
// Maximum number of touch points on the screen.
uint32_t maxTouchPoints;
};
// IPCTabContext is an analog to mozilla::dom::TabContext. Both specify an
// iframe/PBrowser's own and containing app-ids and tell you whether the
// iframe/PBrowser is a browser frame. But only IPCTabContext is allowed to
// travel over IPC.
//
// We need IPCTabContext (specifically, PopupIPCTabContext) to prevent a
// privilege escalation attack by a compromised child process.
union IPCTabContext
{
PopupIPCTabContext;
FrameIPCTabContext;
};
}
}
