Settings 2-pane deep link vulnerabilities

Settings app must not start an deep link Activity if
1. The deep link Activity is not exported.
or
2. Calling package does not have the permission to
   start the deep link Activity.

Bug: 250589026
Test: make RunSettingsRoboTests ROBOTEST_FILTER=SettingsHomepageActivityTest
Change-Id: I9a3bddfa5d9d1d2e924dd6f3e5e07dca6c11664f
2 files changed