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

mojo/mojom_bindings_generator_explicit.gypi

 # Copyright 2013 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.
 
 {
   'includes': [
     'mojom_bindings_generator_variables.gypi',
   ],
   'variables': {
     'variables': {
       'variables': {
         'for_blink%': 'false',
+        'use_new_wrapper_types%': 'false',
       },
       'for_blink%': 'false',
+      'use_new_wrapper_types%': 'false',
       'conditions': [
         ['for_blink=="true"', {
           'mojom_output_languages%': 'c++',
           'mojom_variant%': 'blink',
           'mojom_generator_wtf_arg%': [
             '--for_blink',
           ],
           'wtf_dependencies%': [
             '<(DEPTH)/mojo/mojo_public.gyp:mojo_cpp_bindings_wtf_support',
             '<(DEPTH)/third_party/WebKit/Source/wtf/wtf.gyp:wtf',
           ],
         }, {
           'mojom_output_languages%': 'c++,javascript,java',
           'mojom_variant%': 'none',
           'mojom_generator_wtf_arg%': [],
           'wtf_dependencies%': [],
         }],
+        ['use_new_wrapper_types=="true"', {
+          'mojom_generator_new_wrappers_arg%': [
+            '--use_new_wrapper_types',
+          ],
+        }, {
+          'mojom_generator_new_wrappers_arg%': [],
+        }],
       ],
     },
     'for_blink%': '<(for_blink)',
+    'use_new_wrapper_types%': '<(use_new_wrapper_types)',
     'mojom_variant%': '<(mojom_variant)',
     'mojom_generator_wtf_arg%': '<(mojom_generator_wtf_arg)',
+    'mojom_generator_new_wrappers_arg%': '<(mojom_generator_new_wrappers_arg)',
     'wtf_dependencies%': '<(wtf_dependencies)',
     'mojom_output_languages%': '<(mojom_output_languages)',
     'mojom_typemaps%': [],
     'mojom_base_output_dir':
         '<!(python <(DEPTH)/build/inverse_depth.py <(DEPTH))',
     'mojom_generated_outputs': [
       '<!@(python <(DEPTH)/mojo/public/tools/bindings/mojom_list_outputs.py --basedir <(mojom_base_output_dir) --variant <(mojom_variant) <@(mojom_files))',
     ],
     'generated_typemap_file': '<(SHARED_INTERMEDIATE_DIR)/<(mojom_base_output_dir)/<(_target_name)_type_mappings',
     'mojom_include_path%': '<(DEPTH)',
@@ skipping 67 matching lines @@
         '<@(mojom_files)',
         '-d', '<(DEPTH)',
         '<@(mojom_import_args)',
         '-o', '<(SHARED_INTERMEDIATE_DIR)',
         '--java_output_directory=<(java_out_dir)',
         '--variant', '<(mojom_variant)',
         '-g', '<(mojom_output_languages)',
         '--typemap',
         '<(generated_typemap_file)',
         '<@(mojom_generator_wtf_arg)',
+        '<@(mojom_generator_new_wrappers_arg)',
         '--bytecode_path',
         '<(SHARED_INTERMEDIATE_DIR)/mojo/public/tools/bindings',
       ],
       'message': 'Generating Mojo bindings from <@(mojom_files)',
     }
   ],
   'conditions': [
     ['require_interface_bindings==1', {
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
@@ skipping 40 matching lines @@
         ],
         'additional_input_paths': [
           '<@(mojom_bindings_generator_sources)',
           '<@(mojom_files)',
         ],
         'mojom_generated_sources': [ '<@(mojom_generated_outputs)' ],
       },
     }
   },
 }