1 files changed, 79 insertions, 0 deletions
diff --git a/dom/media/MediaPrefs.cpp b/dom/media/MediaPrefs.cpp
new file mode 100644
index 000000000..522870b4e
--- /dev/null
+++ b/dom/media/MediaPrefs.cpp
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 "MediaPrefs.h"
+
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/StaticPtr.h"
+#include "MainThreadUtils.h"
+
+namespace mozilla {
+
+StaticAutoPtr<MediaPrefs> MediaPrefs::sInstance;
+
+MediaPrefs&
+MediaPrefs::GetSingleton()
+{
+  if (!sInstance) {
+    sInstance = new MediaPrefs;
+    ClearOnShutdown(&sInstance);
+  }
+  MOZ_ASSERT(SingletonExists());
+  return *sInstance;
+}
+
+bool
+MediaPrefs::SingletonExists()
+{
+  return sInstance != nullptr;
+}
+
+MediaPrefs::MediaPrefs()
+{
+  MediaPrefs::AssertMainThread();
+}
+
+void MediaPrefs::AssertMainThread()
+{
+  MOZ_ASSERT(NS_IsMainThread(), "this code must be run on the main thread");
+}
+
+void MediaPrefs::PrefAddVarCache(bool* aVariable,
+                                 const char* aPref,
+                                 bool aDefault)
+{
+  Preferences::AddBoolVarCache(aVariable, aPref, aDefault);
+}
+
+void MediaPrefs::PrefAddVarCache(int32_t* aVariable,
+                                 const char* aPref,
+                                 int32_t aDefault)
+{
+  Preferences::AddIntVarCache(aVariable, aPref, aDefault);
+}
+
+void MediaPrefs::PrefAddVarCache(uint32_t* aVariable,
+                                 const char* aPref,
+                                 uint32_t aDefault)
+{
+  Preferences::AddUintVarCache(aVariable, aPref, aDefault);
+}
+
+void MediaPrefs::PrefAddVarCache(float* aVariable,
+                                 const char* aPref,
+                                 float aDefault)
+{
+  Preferences::AddFloatVarCache(aVariable, aPref, aDefault);
+}
+
+void MediaPrefs::PrefAddVarCache(AtomicUint32* aVariable,
+                                 const char* aPref,
+                                 uint32_t aDefault)
+{
+  Preferences::AddAtomicUintVarCache(aVariable, aPref, aDefault);
+}
+
+} // namespace mozilla