Merge "Add background blur activity to silkfx" am: 81f5901e83 am: 9da79d3727 am: ea7dbe7167 am: 8c91cb7376

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1966459

Change-Id: I351da726fc4908ce7b40f017baff17ba3c41f43c