gin: Create a DataObjectBuilder class to help create simple data objects.

gin/BUILD.gn

 # 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.
 
 import("//testing/test.gni")
 import("//v8/gni/v8.gni")
 
 # This is depended upon from the browser DLL on Windows, where V8 is not used,
 # but features are enabled. This cannot depend on V8.
 component("gin_features") {
@@ skipping 14 matching lines @@
 
 component("gin") {
   sources = [
     "arguments.cc",
     "arguments.h",
     "array_buffer.cc",
     "array_buffer.h",
     "context_holder.cc",
     "converter.cc",
     "converter.h",
+    "data_object_builder.cc",
+    "data_object_builder.h",
     "debug_impl.cc",
     "debug_impl.h",
     "dictionary.cc",
     "dictionary.h",
     "function_template.cc",
     "function_template.h",
     "gin_export.h",
     "handle.h",
     "interceptor.cc",
     "interceptor.h",
@@ skipping 109 matching lines @@
     "//v8",
   ]
 
   configs += [ "//v8:external_startup_data" ]
 }
 
 test("gin_unittests") {
   sources = [
     "arguments_unittest.cc",
     "converter_unittest.cc",
+    "data_object_builder_unittest.cc",
     "interceptor_unittest.cc",
     "modules/module_registry_unittest.cc",
     "modules/timer_unittest.cc",
     "per_context_data_unittest.cc",
     "shell/gin_shell_unittest.cc",
     "shell_runner_unittest.cc",
     "test/run_all_unittests.cc",
     "test/run_js_tests.cc",
     "v8_isolate_memory_dump_provider_unittest.cc",
     "v8_platform_unittest.cc",
@@ skipping 14 matching lines @@
     "shell/hello_world.js",
     "test/file_unittests.js",
     "test/gtest_unittests.js",
     "../OWNERS",
   ]
 
   data_deps = [
     ":gin_shell",
   ]
 }