1 files changed, 31 insertions, 0 deletions
diff --git a/xpcom/threads/MainThreadIdlePeriod.h b/xpcom/threads/MainThreadIdlePeriod.h
new file mode 100644
index 0000000000..7e382f6771
--- /dev/null
+++ b/xpcom/threads/MainThreadIdlePeriod.h
@@ -0,0 +1,31 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_mainthreadidleperiod_h
+#define mozilla_dom_mainthreadidleperiod_h
+
+#include "mozilla/TimeStamp.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla {
+
+class MainThreadIdlePeriod final : public IdlePeriod {
+ public:
+  NS_DECL_NSIIDLEPERIOD
+
+  MainThreadIdlePeriod() : mLastIdleDeadline(TimeStamp::Now()) {}
+
+  static float GetLongIdlePeriod();
+
+ private:
+  virtual ~MainThreadIdlePeriod() = default;
+
+  TimeStamp mLastIdleDeadline;
+};
+
+}  // namespace mozilla
+
+#endif  // mozilla_dom_mainthreadidleperiod_h