Sander Alewijnse d2a1eec400 Add Device Policy API to disable screen capture.
WindowManager will set secure flag on SurfaceControl for
all windows of a flagged user to prevent screen capture.
API is consistent with the camera disable API.

Change-Id: Ib180f67f1ad827b6f4aca2af615274256cce58f4
2014-07-23 13:44:28 +00:00
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