[1/2] frameworks/base: Privacy Guard

PS2: * add missing call to updatePrivacyGuardNotificationLocked()
     * remove ic_privacy_guard and ic_privacy_guard_off
     * use stat_notify_privacy_guard drawable from Björn
     * rebase

PS3: * exclude MODE_IGNORED from causing
       getPrivacyGuardSettingForPackage() returning true.
       multiuser restrictions on calls/sms otherwise
       cause privacyguard to appear to be on when really
       it isn't.
     * rebase

Pulled together from:

Author: Danesh M <daneshm90@gmail.com>
Date:   Thu Sep 5 19:23:15 2013 -0700
Privacy Guard : Reimplement backed by AppOps
Re-implements privacy guard to use appops.
Change-Id: I2b52e8cf0d6e126fb156f83df885b5551503cd9d

Author: Jorge Ruesga <jorge@ruesga.com>
Date:   Sat Jan 4 01:34:39 2014 +0100
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.
Patchset 2: Fix formatting
Change-Id: I5dd75cfa7f5e8b568a4302fce98809ae307c6d52
JIRA: CYAN-2874
Issue: https://jira.cyanogenmod.org/browse/CYAN-2874

Author: Steve Kondik <shade@chemlab.org>
Date:   Sun Feb 23 19:23:31 2014 +0100
Use MODE_ASK as the default ops mode in Privacy Guard
* Prompting the user is far more useful as a default behavior. The
  choice will be remembered after the first request.
Change-Id: Ie62f932047f8b761bd0dd9f836bcd1132062edf5

Author: Steve Kondik <shade@chemlab.org>
Date:   Tue Feb 25 13:11:12 2014 +0100
Relocate and cleanup new app ops features and PGify it
Change-Id: I4eb65f6f88c2f2aecdf054ffd52c31c4d5866900

Change-Id: I2a69d59f288630fefcc83e6109ab608fa28eb71b