Add @UnsupportedAppUsage to methods known to be used by apps

Exempted-From-Owner-Approval: Automatic changes to the codebase
affecting only @UnsupportedAppUsage annotations, themselves added
without requiring owners approval earlier.

Bug: 123308819
Bug: 122291025
Test: m appcompat
Change-Id: Iafd62b8ece0d19268fad65086134a1e7369bc0bb