mojo: Make EqualsTraits<> part of public C++ API

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

 // Copyright 2016 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_WTF_CLONE_EQUALS_UTIL_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_WTF_CLONE_EQUALS_UTIL_H_
 
 #include <type_traits>
 
 #include "mojo/public/cpp/bindings/clone_traits.h"
-#include "mojo/public/cpp/bindings/lib/equals_traits.h"
+#include "mojo/public/cpp/bindings/equals_traits.h"
 #include "third_party/WebKit/Source/platform/wtf/HashMap.h"
 #include "third_party/WebKit/Source/platform/wtf/Optional.h"
 #include "third_party/WebKit/Source/platform/wtf/Vector.h"
 #include "third_party/WebKit/Source/platform/wtf/text/WTFString.h"
 
 namespace mojo {
 
 template <typename T>
 struct CloneTraits<WTF::Vector<T>, false> {
   static WTF::Vector<T> Clone(const WTF::Vector<T>& input) {
@@ skipping 10 matching lines @@
 struct CloneTraits<WTF::HashMap<K, V>, false> {
   static WTF::HashMap<K, V> Clone(const WTF::HashMap<K, V>& input) {
     WTF::HashMap<K, V> result;
     auto input_end = input.end();
     for (auto it = input.begin(); it != input_end; ++it)
       result.add(mojo::Clone(it->key), mojo::Clone(it->value));
     return result;
   }
 };
 
-namespace internal {
-
 template <typename T>
 struct EqualsTraits<WTF::Vector<T>, false> {
   static bool Equals(const WTF::Vector<T>& a, const WTF::Vector<T>& b) {
     if (a.size() != b.size())
       return false;
     for (size_t i = 0; i < a.size(); ++i) {
-      if (!internal::Equals(a[i], b[i]))
+      if (!Equals(a[i], b[i]))
         return false;
     }
     return true;
   }
 };
 
 template <typename K, typename V>
 struct EqualsTraits<WTF::HashMap<K, V>, false> {
   static bool Equals(const WTF::HashMap<K, V>& a, const WTF::HashMap<K, V>& b) {
     if (a.size() != b.size())
       return false;
 
     auto a_end = a.end();
     auto b_end = b.end();
 
     for (auto iter = a.begin(); iter != a_end; ++iter) {
       auto b_iter = b.find(iter->key);
-      if (b_iter == b_end || !internal::Equals(iter->value, b_iter->value))
+      if (b_iter == b_end || !Equals(iter->value, b_iter->value))
         return false;
     }
     return true;
   }
 };
 
-}  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_WTF_CLONE_EQUALS_UTIL_H_