Revert "Delete CC."

cc/base/util.h

+// Copyright 2012 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 CC_BASE_UTIL_H_
+#define CC_BASE_UTIL_H_
+
+#include <limits>
+
+#include "base/basictypes.h"
+
+namespace cc {
+
+template <typename T> T RoundUp(T n, T mul) {
+  static_assert(std::numeric_limits<T>::is_integer,
+                "T must be an integer type");
+  return (n > 0) ? ((n + mul - 1) / mul) * mul
+                 : (n / mul) * mul;
+}
+
+template <typename T> T RoundDown(T n, T mul) {
+  static_assert(std::numeric_limits<T>::is_integer,
+                "T must be an integer type");
+  return (n > 0) ? (n / mul) * mul
+                 : (n == 0) ? 0
+                 : ((n - mul + 1) / mul) * mul;
+}
+
+}  // namespace cc
+
+#endif  // CC_BASE_UTIL_H_