describeContents() returns CONTENTS_FILE_DESCRIPTOR

Parcelable.describeContents() returns CONTENTS_FILE_DESCRIPTOR when the
contents hold a file descriptor.

Bug: 170677046
Test: aidl_unittests / aidl_integration_test
Change-Id: Idb06123def25c78f7e4ed5317e61ddee8ca39d5d
10 files changed