tree 9c0d53b6a90df6c1005309714445247a45f94e31
parent d96b2bcc2b675b6e8eae54af31b51325ec73ce0a
author Sam Blitzstein <sblitz@google.com> 1417652282 -0800
committer Sam Blitzstein <sblitz@google.com> 1418252333 -0800

Before the first call to clearCallingIdentity, cache the calling package.

Then it will be saved as a mutator when the dirty bit is set.
This may be accessed by multiple threads, so the data is cached in ThreadLocal.
Also track the calling Uid, and clear the cached package when the tracked Uid
is restored.

Bug: 18421411
Change-Id: I4597bd4169636c3988d72ddde51578a02af193ea