/usr/include/firefox-esr-52/PrincipalChangeObserver.h is in firefox-esr-dev 52.8.1esr-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef MOZILLA_PRINCIPALCHANGEOBSERVER_H_
#define MOZILLA_PRINCIPALCHANGEOBSERVER_H_
namespace mozilla {
namespace dom {
/**
* A PrincipalChangeObserver for any type, but originating from DOMMediaStream,
* then expanded to MediaStreamTrack.
*
* Used to learn about dynamic changes to an object's principal.
* Operations relating to these observers must be confined to the main thread.
*/
template<typename T>
class PrincipalChangeObserver
{
public:
virtual void PrincipalChanged(T* aArg) = 0;
};
} // namespace dom
} // namespace mozilla
#endif /* MOZILLA_PRINCIPALCHANGEOBSERVER_H_ */
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