Method keepAlive

Telegram/SourceFiles/data/data_session.cpp:475–479

}

void Session::keepAlive(std::shared_ptr<PhotoMedia> media) {
	// NB! This allows PhotoMedia to outlive Main::Session!
	// In case this is a problem this code should be rewritten.
	crl::on_main(&session(), [media = std::move(media)]{});
}

void Session::keepAlive(std::shared_ptr<DocumentMedia> media) {
	// NB! This allows DocumentMedia to outlive Main::Session!