Merge commit '454ab0f' to master This commit was used in the DEPS for a while, but was lost when the branch was deleted. See https://github.com/flutter/flutter/issues/76952.
Utilities for working with Foreign Function Interface (FFI) code, incl. converting between Dart strings and C strings encoded with UTF-8 and UTF-16.
For additional details about Dart FFI (dart:ffi), see https://dart.dev/guides/libraries/c-interop.