1 files changed, 26 insertions, 0 deletions
diff --git a/chromium/mojo/public/cpp/bindings/lib/callback_internal.h b/chromium/mojo/public/cpp/bindings/lib/callback_internal.h
new file mode 100644
index 00000000000..f76ebef59e6
--- /dev/null
+++ b/chromium/mojo/public/cpp/bindings/lib/callback_internal.h
@@ -0,0 +1,26 @@
+// 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_CALLBACK_INTERNAL_H_
+#define MOJO_PUBLIC_CPP_BINDINGS_LIB_CALLBACK_INTERNAL_H_
+
+namespace mojo {
+class String;
+
+namespace internal {
+
+template <typename T>
+struct Callback_ParamTraits {
+  typedef T ForwardType;
+};
+
+template <>
+struct Callback_ParamTraits<String> {
+  typedef const String& ForwardType;
+};
+
+}  // namespace internal
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_CALLBACK_INTERNAL_H_