handleIncomingShareIntent only accepted an intent whose resolved mime type
started with image/, video/, audio/, application/, file/, text/ or */. An
ACTION_SEND carrying EXTRA_STREAM with any other top level type, such as the
message/rfc822 that some apps use when attaching a file, fell through to null
and the share was dropped before the room picker ever appeared, even though
the manifest filter accepts */*.
The uris are extracted before that check, so their presence is enough to know
the intent carries something to send. Accept the intent when it has uris and
keep the mime type list for the case where it does not.
hayaksi1
2c0da1cadf