* refactor: use gin converters in api::Protocol
* refactor: convert JS constructor impl to gin
* refactor: use InitWithArgs helper
* fix: gin_helper::Dictionary should behave the same with mate
* fix cpplint warnings
* refactor: no more need to patch gin/dictionary.h
* deprecate native_mate/native_mate/object_template_builder.h
* add gin_helper/object_template_builder.h
* add patch to avoid ambiguous error
* remove usage of object_template_builder_deprecated.h in a few files
* add note we should remove gin_helper/object_template_builder.h in future
* chore: add GN linter
* chore: fix GN lint errors
* try some crazy bash to get a gn exe
* base64 on linux is different
* cloning build_tools doesn't download GN
* download_from_google_storage needs depot_tools in the path
* fixup! chore: add GN linter
