Revert "Revert "Use GraphicBuffer instead of GBP for screenshots.""

This reverts commit 707b8f3507fa4a3915844c7a4730e67f94eee2f7.

Reason for revert: Ready to test out changes with SystemUI update

Change-Id: I9fd0cb7ad9cc68d2366fc5ec4ab087fbe4c21f3b
10 files changed