Sanitize intent selector in IntentForwarderActivity

Bug: 407763772 403565650
Test: manually tested
Flag: EXEMPT BUGFIX
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:a23c911b8f0705af7ffa739717587b2fc965354e
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:40beda0e304c16fc9672942ed4669c8b3a1ec015
Merged-In: I487b6dea195f9186e8cb7c84f7041527862fb9ce
Change-Id: I487b6dea195f9186e8cb7c84f7041527862fb9ce
1 file changed