1 files changed, 36 insertions, 0 deletions
diff --git a/dom/media/mediacapabilities/BenchmarkStorageChild.cpp b/dom/media/mediacapabilities/BenchmarkStorageChild.cpp
new file mode 100644
index 0000000000..32bf9adac2
--- /dev/null
+++ b/dom/media/mediacapabilities/BenchmarkStorageChild.cpp
@@ -0,0 +1,36 @@
+/* -*- 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/. */
+
+#include "BenchmarkStorageChild.h"
+#include "mozilla/dom/ContentChild.h"
+
+namespace mozilla {
+
+static PBenchmarkStorageChild* sChild = nullptr;
+
+/* static */
+PBenchmarkStorageChild* BenchmarkStorageChild::Instance() {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (!sChild) {
+    sChild = new BenchmarkStorageChild();
+    PContentChild* contentChild = dom::ContentChild::GetSingleton();
+    MOZ_ASSERT(contentChild);
+    if (!contentChild->SendPBenchmarkStorageConstructor()) {
+      MOZ_CRASH("SendPBenchmarkStorageConstructor failed");
+    }
+  }
+  MOZ_ASSERT(sChild);
+  return sChild;
+}
+
+BenchmarkStorageChild::~BenchmarkStorageChild() {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (sChild == this) {
+    sChild = nullptr;
+  }
+}
+
+}  // namespace mozilla