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+// Copyright (c) 2008 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 BASE_RAND_UTIL_H_
+#define BASE_RAND_UTIL_H_
+
+#include "base/basictypes.h"
+
+namespace base {
+
+// Returns a random number in range [0, kuint64max]. Thread-safe.
+uint64 RandUInt64();
+
+// Returns a random number between min and max (inclusive). Thread-safe.
+int RandInt(int min, int max);
+
+// Returns a random double in range [0, 1). Thread-safe.
+double RandDouble();
+
+} // namespace base
+
+#endif // BASE_RAND_UTIL_H_