Make the fuchsia mojo/public repo the source of truth.

mojo/public/cpp/bindings/lib/template_util.h

-// Copyright 2014 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 MOJO_PUBLIC_CPP_BINDINGS_LIB_TEMPLATE_UTIL_H_
-#define MOJO_PUBLIC_CPP_BINDINGS_LIB_TEMPLATE_UTIL_H_
-
-#include <type_traits>
-
-namespace mojo {
-namespace internal {
-
-// Types YesType and NoType are guaranteed such that sizeof(YesType) <
-// sizeof(NoType).
-typedef char YesType;
-
-struct NoType {
-  YesType dummy[2];
-};
-
-// A helper template to determine if given type is non-const move-only-type,
-// i.e. if a value of the given type should be passed via .Pass() in a
-// destructive way.
-template <typename T>
-struct IsMoveOnlyType {
-  template <typename U>
-  static YesType Test(const typename U::MoveOnlyTypeForCPP03*);
-
-  template <typename U>
-  static NoType Test(...);
-
-  static const bool value =
-      sizeof(Test<T>(0)) == sizeof(YesType) && !std::is_const<T>::value;
-};
-
-// Returns a reference to |t| when T is not a move-only type.
-template <typename T>
-typename std::enable_if<!IsMoveOnlyType<T>::value, T>::type& Forward(T& t) {
-  return t;
-}
-
-// Returns the result of t.Pass() when T is a move-only type.
-template <typename T>
-typename std::enable_if<IsMoveOnlyType<T>::value, T>::type Forward(T& t) {
-  return t.Pass();
-}
-
-template <template <typename...> class Template, typename T>
-struct IsSpecializationOf : std::false_type {};
-
-template <template <typename...> class Template, typename... Args>
-struct IsSpecializationOf<Template, Template<Args...>> : std::true_type {};
-
-}  // namespace internal
-}  // namespace mojo
-
-#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_TEMPLATE_UTIL_H_