Sends the correct content insets to status bar

This CL ensures the content and visible frames of status bar won't be
overlapped with the stable insets. So that it can prevent the content
of status bar from being obscured by navigation bar.

Fix: 141661670
Test: manually test with the immersive show-when-locked app
Change-Id: I91e7c694fb21371e3513a9e61159f488e0aa783e