1 files changed, 20 insertions, 0 deletions
diff --git a/dom/media/doctor/DDTimeStamp.cpp b/dom/media/doctor/DDTimeStamp.cpp
new file mode 100644
index 0000000000..b440c559d7
--- /dev/null
+++ b/dom/media/doctor/DDTimeStamp.cpp
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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 "DDTimeStamp.h"
+
+namespace mozilla {
+
+double ToSeconds(const DDTimeStamp& aTimeStamp) {
+  // Timestamp at first call, used internally to convert log timestamps
+  // to a duration from this timestamp.
+  // What's important is the relative time between log messages.
+  static const DDTimeStamp sInitialTimeStamp = TimeStamp::Now();
+
+  return (aTimeStamp - sInitialTimeStamp).ToSeconds();
+}
+
+}  // namespace mozilla