Load CMA backend from shared library

chromecast/base/time_conversions.h

Index: chromecast/base/time_conversions.h
diff --git a/chromecast/base/time_conversions.h b/chromecast/base/time_conversions.h
new file mode 100644
index 0000000000000000000000000000000000000000..5625d6325c5d5918cc991a8613f4cd2eafc49736
--- /dev/null
+++ b/chromecast/base/time_conversions.h
@@ -0,0 +1,19 @@
+// Copyright (c) 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROMECAST_BASE_TIME_CONVERSIONS_H_
+#define CHROMECAST_BASE_TIME_CONVERSIONS_H_
+
+#include "base/time/time.h"
+#include "chromecast/public/time_delta.h"
+
+namespace chromecast {
+
+// Convenience to convert between base::TimeDelta and chromecast::TimeDelta
+base::TimeDelta ToBaseTimeDelta(TimeDelta delta);
+TimeDelta FromBaseTimeDelta(base::TimeDelta delta);
+
+}  // namespace chromecast
+
+#endif  // CHROMECAST_BASE_TIME_CONVERSIONS_H_