1 files changed, 49 insertions, 0 deletions
diff --git a/dom/performance/PerformanceMeasure.h b/dom/performance/PerformanceMeasure.h
new file mode 100644
index 0000000000..7ac9ceb16d
--- /dev/null
+++ b/dom/performance/PerformanceMeasure.h
@@ -0,0 +1,49 @@
+/* -*- 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_performancemeasure_h___
+#define mozilla_dom_performancemeasure_h___
+
+#include "mozilla/dom/PerformanceEntry.h"
+
+namespace mozilla::dom {
+
+// http://www.w3.org/TR/user-timing/#performancemeasure
+class PerformanceMeasure final : public PerformanceEntry {
+ public:
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(PerformanceMeasure,
+                                                         PerformanceEntry);
+
+  PerformanceMeasure(nsISupports* aParent, const nsAString& aName,
+                     DOMHighResTimeStamp aStartTime,
+                     DOMHighResTimeStamp aEndTime,
+                     const JS::Handle<JS::Value>& aDetail);
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  virtual DOMHighResTimeStamp StartTime() const override { return mStartTime; }
+
+  virtual DOMHighResTimeStamp Duration() const override { return mDuration; }
+
+  void GetDetail(JSContext* aCx, JS::MutableHandle<JS::Value> aRetval);
+
+  size_t SizeOfIncludingThis(
+      mozilla::MallocSizeOf aMallocSizeOf) const override;
+
+ protected:
+  virtual ~PerformanceMeasure();
+  DOMHighResTimeStamp mStartTime;
+  DOMHighResTimeStamp mDuration;
+
+ private:
+  JS::Heap<JS::Value> mDetail;
+};
+
+}  // namespace mozilla::dom
+
+#endif /* mozilla_dom_performancemeasure_h___ */