There is no longer any point of keeping owning_binary_ as part of the AnnotatingImporter state, since it is not re-used between calls to GetAnnotatedBasicBlockProtos, which is the intended use of AnnotatingImporter.
This change is meant to help merge some functionality from annotating_importer with extract_bbs_from_obj_lib.
owning_binary_as part of theAnnotatingImporterstate, since it is not re-used between calls toGetAnnotatedBasicBlockProtos, which is the intended use ofAnnotatingImporter.annotating_importerwithextract_bbs_from_obj_lib.