privacyguard: Share privacy package name between activity stacks

AOSP 4.4 now has a stack supervisor with differents activity stacks for home and focus activities.
Every ActivityStack instance has a ref to this supervisor. Just share the privacy guard package name
throught the supervisor.

Thanks Jorgue....way better solution then the dumb fast one I did on 4.4 bringup

AICP'fied

Change-Id: I66c283fb9e3cec6ac9ec6a293e068d115e80a3fa
Revert "privacyguard: Share privacy package name between activity stacks"

This reverts commit f012d5633167b737c540c2a99f272653364b3fb5.

Change-Id: Id5a7474a57e0b40bd324b95086b83b3a695535e3
Frameworks: fix notification cancel on privacy guard

new activity stack from google to handle the shiny new launcher
stuff is running on several instances. That said mPrivacyGuardPackageName
currently does not survive when going from an app into launcher. Make
it static to solve it.

Change-Id: Ic9374d2cc58cb716b086365ab8aa96ffaef44879
privacyguard: Share privacy package name between activity stacks

AOSP 4.4 now has a stack supervisor with differents activity stacks for home and focus activities.
Every ActivityStack instance has a ref to this supervisor. Just share the privacy guard package name
throught the supervisor.

Thanks Jorgue....way better solution then the dumb fast one I did on 4.4 bringup

Change-Id: Ib0916c18ce29280703294b7ebafa9917748a3b0f
Merge remote-tracking branch 'ap/kitkat' into kitkat
Png changes