tree 708782d993b12e0e4c1186541ca6b09dbc866e50
parent fb895c39f22d66c4bee236a5d4246b72d9b8bbc1
author Hall Liu <hallliu@google.com> 1594667583 -0700
committer Hall Liu <hallliu@google.com> 1595466244 -0700

Skip carrier priv check for trusted UIDs

Checking carrier privileges for UIDs with lots of shared apps can incur
a significant performance hit. For UIDs that are fixed and trusted
(system and phone), skip the permission check and always allow.

Bug: 160971853
Test: manual verification -- observed lower rate of cache misses for
getPackageInfo from com.android.phone.

Change-Id: Id2079b44a14f67d6b7cccb915424426232d0965a