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

mojo/mojo_public.gypi

 # 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.
 
 {
   'variables': {
     'mojo_cpp_bindings_sources': [
       'public/cpp/bindings/array.h',
       'public/cpp/bindings/array_traits.h',
       'public/cpp/bindings/array_traits_carray.h',
@@ skipping 18 matching lines @@
       'public/cpp/bindings/lib/array_internal.cc',
       'public/cpp/bindings/lib/array_internal.h',
       'public/cpp/bindings/lib/array_serialization.h',
       'public/cpp/bindings/lib/associated_group.cc',
       'public/cpp/bindings/lib/associated_group_controller.cc',
       'public/cpp/bindings/lib/associated_interface_ptr_state.h',
       'public/cpp/bindings/lib/binding_state.h',
       'public/cpp/bindings/lib/bindings_internal.cc',
       'public/cpp/bindings/lib/bindings_internal.h',
       'public/cpp/bindings/lib/buffer.h',
+      'public/cpp/bindings/lib/clone_equals_util.h',
       'public/cpp/bindings/lib/connector.cc',
       'public/cpp/bindings/lib/control_message_handler.cc',
       'public/cpp/bindings/lib/control_message_handler.h',
       'public/cpp/bindings/lib/control_message_proxy.cc',
       'public/cpp/bindings/lib/control_message_proxy.h',
       'public/cpp/bindings/lib/filter_chain.cc',
       'public/cpp/bindings/lib/filter_chain.h',
       'public/cpp/bindings/lib/fixed_buffer.cc',
       'public/cpp/bindings/lib/fixed_buffer.h',
       'public/cpp/bindings/lib/handle_interface_serialization.h',
@@ skipping 94 matching lines @@
       'public/c/system/message_pipe.h',
       'public/c/system/platform_handle.h',
       'public/c/system/system_export.h',
       'public/c/system/thunks.cc',
       'public/c/system/thunks.h',
       'public/c/system/types.h',
       'public/c/system/wait_set.h',
     ],
   },
 }