Mojo typemap config: support "copyable_pass_by_value" attribute.

mojo/public/cpp/bindings/tests/struct_with_traits_impl.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_TESTS_STRUCT_WITH_TRAITS_IMPL_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_TESTS_STRUCT_WITH_TRAITS_IMPL_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 73 matching lines @@
   bool bool_ = false;
   uint32_t uint32_ = 0;
   uint64_t uint64_ = 0;
   std::string string_;
   std::vector<std::string> string_array_;
   NestedStructWithTraitsImpl struct_;
   std::vector<NestedStructWithTraitsImpl> struct_array_;
   std::map<std::string, NestedStructWithTraitsImpl> struct_map_;
 };
 
-// A type which knows how to look like a mojo::test::PassByValueStructWithTraits
+// A type which knows how to look like a mojo::test::TrivialStructWithTraits
 // mojom type by way of mojo::StructTraits.
-class PassByValueStructWithTraitsImpl {
+struct TrivialStructWithTraitsImpl {
+  int32_t value;
+};
+
+// A type which knows how to look like a mojo::test::MoveOnlyStructWithTraits
+// mojom type by way of mojo::StructTraits.
+class MoveOnlyStructWithTraitsImpl {
  public:
-  PassByValueStructWithTraitsImpl();
-  PassByValueStructWithTraitsImpl(PassByValueStructWithTraitsImpl&& other);
-  ~PassByValueStructWithTraitsImpl();
+  MoveOnlyStructWithTraitsImpl();
+  MoveOnlyStructWithTraitsImpl(MoveOnlyStructWithTraitsImpl&& other);
+  ~MoveOnlyStructWithTraitsImpl();
 
   ScopedHandle& get_mutable_handle() { return handle_; }
 
  private:
   ScopedHandle handle_;
-  DISALLOW_COPY_AND_ASSIGN(PassByValueStructWithTraitsImpl);
+  DISALLOW_COPY_AND_ASSIGN(MoveOnlyStructWithTraitsImpl);
 };
 
 }  // namespace test
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_TESTS_STRUCT_WITH_TRAITS_IMPL_H_