1 files changed, 42 insertions, 0 deletions
diff --git a/dom/media/webrtc/jsapi/RTCStatsIdGenerator.h b/dom/media/webrtc/jsapi/RTCStatsIdGenerator.h
new file mode 100644
index 0000000000..1391c029ad
--- /dev/null
+++ b/dom/media/webrtc/jsapi/RTCStatsIdGenerator.h
@@ -0,0 +1,42 @@
+/* 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/. */
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+
+#ifndef _RTCSTATSIDGENERATOR_H_
+#define _RTCSTATSIDGENERATOR_H_
+
+#include <map>
+
+#include "mozilla/Atomics.h"
+#include "mozilla/UniquePtr.h"
+#include "nsISupportsImpl.h"
+#include "nsString.h"
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace dom {
+struct RTCStatsCollection;
+}  // namespace dom
+
+class RTCStatsIdGenerator {
+ public:
+  RTCStatsIdGenerator();
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RTCStatsIdGenerator);
+
+  void RewriteIds(nsTArray<UniquePtr<dom::RTCStatsCollection>> aFromStats,
+                  dom::RTCStatsCollection* aIntoReport);
+
+ private:
+  virtual ~RTCStatsIdGenerator(){};
+  nsString Id(const nsString& aKey);
+  nsString Generate();
+
+  const uint64_t mSalt;
+  uint64_t mCounter;
+  std::map<nsString, nsString> mAllocated;
+};
+
+}  // namespace mozilla
+#endif