So all most commonly-used flags go to proguard_basic_keeps.flags
and they will still be applied when LOCAL_PROGUARD_ENABLED=nosystem.
Bug: 9203442
Change-Id: If018076dc625ac1efe31898b179dbba850218aaf
The support library contains references to newer platform versions.
Don't warn about those in case this app is linking against an older
platform version. We know about them, and they are safe.
Change-Id: Ia2a90398b1db1858d005ec09ded56751cc6ffb00