Merge "Add keep rules for @KeepForWeakReference annotation"

@**.VisibleForTesting *;

}

# Keep rule for members that are needed solely to keep alive downstream weak

# references, and could otherwise be removed after tree shaking optimizations.

-keepclassmembers,allowaccessmodification,allowobfuscation,allowshrinking class * {

  @com.android.internal.annotations.KeepForWeakReference <fields>;

}

# Understand the common @Keep annotation from various Android packages:

#  * android.support.annotation

#  * androidx.annotation