Mojo C++ bindings: minor corrections for the StructTraits documentation.

mojo/public/cpp/bindings/struct_traits.h

 // Copyright 2015 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_STRUCT_TRAITS_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_STRUCT_TRAITS_H_
 
 namespace mojo {
 
 // This must be specialized for any type |T| to be serialized/deserialized as
@@ skipping 104 matching lines @@
 //      to getters. After serialization is done, it calls TearDownContext() so
 //      that you can do any necessary cleanup.
 //
 // In the description above, methods having an |input| parameter define it as
 // const reference of T. Actually, it can be a non-const reference of T too.
 // E.g., if T contains Mojo handles or interfaces whose ownership needs to be
 // transferred. Correspondingly, it requies you to always give non-const T
 // reference/value to the Mojo bindings for serialization:
 //    - if T is used in the "type_mappings" section of a typemap config file,
 //      you need to declare it as pass-by-value:
-//        type_mappings = [ "MojomType=T(move_only)" ]
+//        type_mappings = [ "MojomType=T[move_only]" ]
 //      or
-//        type_mappings = [ "MojomType=T(copyable_pass_by_value)" ]
+//        type_mappings = [ "MojomType=T[copyable_pass_by_value]" ]
 //
 //    - if another type U's StructTraits/UnionTraits has a getter for T, it
 //      needs to return non-const reference/value.
 //
 // EXAMPLE:
 //
 // Mojom definition:
 //   struct Bar {};
 //   struct Foo {
 //     int32 f_integer;
@@ skipping 19 matching lines @@
 //
 //     static bool Read(FooDataView data, CustomFoo* output);
 //   };
 //
 template <typename DataViewType, typename T>
 struct StructTraits;
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_STRUCT_TRAITS_H_