Mojo C++ bindings: add a new mode to generator to use native STL/WTF types

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 {
@@ skipping 96 matching lines @@
 template <bool B, typename T, typename F>
 struct Conditional {
   typedef T type;
 };
 
 template <typename T, typename F>
 struct Conditional<false, T, F> {
   typedef F type;
 };
 
-template <typename T>
-struct HasCloneMethod {
-  template <typename U>
-  static char Test(decltype(&U::Clone));
-  template <typename U>
-  static int Test(...);
-  static const bool value = sizeof(Test<T>(0)) == sizeof(char);
-
- private:
-  EnsureTypeIsComplete<T> check_t_;
-};
-
-template <typename T,
-          typename std::enable_if<HasCloneMethod<T>::value>::type* = nullptr>
-T Clone(const T& input) {
-  return input.Clone();
-};
-
-template <typename T,
-          typename std::enable_if<!HasCloneMethod<T>::value>::type* = nullptr>
-T Clone(const T& input) {
-  return input;
-}
-
-template <typename T>
-struct HasEqualsMethod {
-  template <typename U>
-  static char Test(decltype(&U::Equals));
-  template <typename U>
-  static int Test(...);
-  static const bool value = sizeof(Test<T>(0)) == sizeof(char);
-
- private:
-  EnsureTypeIsComplete<T> check_t_;
-};
-
-template <typename T,
-          typename std::enable_if<HasEqualsMethod<T>::value>::type* = nullptr>
-bool Equals(const T& a, const T& b) {
-  return a.Equals(b);
-};
-
-template <typename T,
-          typename std::enable_if<!HasEqualsMethod<T>::value>::type* = nullptr>
-bool Equals(const T& a, const T& b) {
-  return a == b;
-}
-
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_TEMPLATE_UTIL_H_