Merge "Reconciled description of WindowManager with description of Context#createDisplayContext()." am: 92a4b54de5 am: 98951a99f4 am: abce82bc5d am: 75954281b3

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1882528

Change-Id: I744c7fe36f8069025d48198cbec08d2a491631ab