1 files changed, 95 insertions, 0 deletions
diff --git a/dom/media/systemservices/MediaChild.cpp b/dom/media/systemservices/MediaChild.cpp
new file mode 100644
index 0000000000..34780ed74f
--- /dev/null
+++ b/dom/media/systemservices/MediaChild.cpp
@@ -0,0 +1,95 @@
+/* -*- 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/. */
+
+#include "MediaChild.h"
+#include "MediaParent.h"
+
+#include "nsGlobalWindow.h"
+#include "mozilla/dom/ContentChild.h"
+#include "mozilla/MediaManager.h"
+#include "mozilla/Logging.h"
+#include "nsQueryObject.h"
+
+#undef LOG
+mozilla::LazyLogModule gMediaChildLog("MediaChild");
+#define LOG(args) MOZ_LOG(gMediaChildLog, mozilla::LogLevel::Debug, args)
+
+namespace mozilla::media {
+
+RefPtr<PrincipalKeyPromise> GetPrincipalKey(
+    const ipc::PrincipalInfo& aPrincipalInfo, bool aPersist) {
+  RefPtr<MediaManager> mgr = MediaManager::GetInstance();
+  MOZ_ASSERT(mgr);
+
+  if (XRE_GetProcessType() == GeckoProcessType_Default) {
+    auto p = MakeRefPtr<PrincipalKeyPromise::Private>(__func__);
+
+    mgr->GetNonE10sParent()->RecvGetPrincipalKey(
+        aPrincipalInfo, aPersist,
+        [p](const nsACString& aKey) { p->Resolve(aKey, __func__); });
+    return p;
+  }
+  return Child::Get()
+      ->SendGetPrincipalKey(aPrincipalInfo, aPersist)
+      ->Then(GetMainThreadSerialEventTarget(), __func__,
+             [](const Child::GetPrincipalKeyPromise::ResolveOrRejectValue&
+                    aValue) {
+               if (aValue.IsReject() || aValue.ResolveValue().IsEmpty()) {
+                 return PrincipalKeyPromise::CreateAndReject(NS_ERROR_FAILURE,
+                                                             __func__);
+               }
+               return PrincipalKeyPromise::CreateAndResolve(
+                   aValue.ResolveValue(), __func__);
+             });
+}
+
+void SanitizeOriginKeys(const uint64_t& aSinceWhen, bool aOnlyPrivateBrowsing) {
+  LOG(("SanitizeOriginKeys since %" PRIu64 " %s", aSinceWhen,
+       (aOnlyPrivateBrowsing ? "in Private Browsing." : ".")));
+
+  if (XRE_GetProcessType() == GeckoProcessType_Default) {
+    // Avoid opening MediaManager in this case, since this is called by
+    // sanitize.js when cookies are cleared, which can happen on startup.
+    RefPtr<Parent<NonE10s>> tmpParent = new Parent<NonE10s>();
+    tmpParent->RecvSanitizeOriginKeys(aSinceWhen, aOnlyPrivateBrowsing);
+  } else {
+    Child::Get()->SendSanitizeOriginKeys(aSinceWhen, aOnlyPrivateBrowsing);
+  }
+}
+
+static Child* sChild;
+
+Child* Child::Get() {
+  MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Content);
+  MOZ_ASSERT(NS_IsMainThread());
+  if (!sChild) {
+    sChild = static_cast<Child*>(
+        dom::ContentChild::GetSingleton()->SendPMediaConstructor());
+  }
+  return sChild;
+}
+
+Child::Child() : mActorDestroyed(false) {
+  LOG(("media::Child: %p", this));
+  MOZ_COUNT_CTOR(Child);
+}
+
+Child::~Child() {
+  LOG(("~media::Child: %p", this));
+  sChild = nullptr;
+  MOZ_COUNT_DTOR(Child);
+}
+
+void Child::ActorDestroy(ActorDestroyReason aWhy) { mActorDestroyed = true; }
+
+PMediaChild* AllocPMediaChild() { return new Child(); }
+
+bool DeallocPMediaChild(media::PMediaChild* aActor) {
+  delete static_cast<Child*>(aActor);
+  return true;
+}
+
+}  // namespace mozilla::media