1 files changed, 60 insertions, 0 deletions
diff --git a/dom/media/systemservices/MediaChild.h b/dom/media/systemservices/MediaChild.h
new file mode 100644
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+++ b/dom/media/systemservices/MediaChild.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et 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/. */
+
+#ifndef mozilla_MediaChild_h
+#define mozilla_MediaChild_h
+
+#include "mozilla/media/PMediaChild.h"
+#include "mozilla/media/PMediaParent.h"
+#include "MediaUtils.h"
+
+namespace mozilla {
+
+namespace ipc {
+class PrincipalInfo;
+}
+
+namespace media {
+
+typedef MozPromise<nsCString, nsresult, false> PrincipalKeyPromise;
+
+// media::Child implements proxying to the chrome process for some media-related
+// functions, for the moment just:
+//
+// GetPrincipalKey() - get a cookie-like persisted unique key for a given
+// principalInfo.
+//
+// SanitizeOriginKeys() - reset persisted unique keys.
+
+// GetPrincipalKey and SanitizeOriginKeys are asynchronous APIs that return
+// pledges (promise-like objects) with the future value. Use pledge.Then(func)
+// to access.
+
+RefPtr<PrincipalKeyPromise> GetPrincipalKey(
+    const mozilla::ipc::PrincipalInfo& aPrincipalInfo, bool aPersist);
+
+void SanitizeOriginKeys(const uint64_t& aSinceWhen, bool aOnlyPrivateBrowsing);
+
+class Child : public PMediaChild {
+ public:
+  static Child* Get();
+
+  Child();
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+  virtual ~Child();
+
+ private:
+  bool mActorDestroyed;
+};
+
+PMediaChild* AllocPMediaChild();
+bool DeallocPMediaChild(PMediaChild* aActor);
+
+}  // namespace media
+}  // namespace mozilla
+
+#endif  // mozilla_MediaChild_h