am 787fc4d5: Merge "Silence -Wsign-compare warning on protobuf-lite headers."
am 787fc4d5: Merge "Silence -Wsign-compare warning on protobuf-lite headers."

* commit '787fc4d52fdbbd3c89bb90369a6bef4bb6b611e8':
  Silence -Wsign-compare warning on protobuf-lite headers.

MonkeyZZZZ/platform_external_protobuf,MonkeyZZZZ/platform_external_protobuf,MonkeyZZZZ/platform_external_protobuf,MonkeyZZZZ/platform_external_protobuf,MonkeyZZZZ/platform_external_protobuf