Make sure the requested windowing mode is set to the container

The container windowing mode was inherited from its parent and
was the same as the requested windowing mode, so the requested
window mode was not set.

However, the container windowing mode may change once reparenting
to another parent.

Bug: 272180228
Test: steps on the bug
Change-Id: I893af15ba93a4c752fdb805a1c6c6b901bbfcbc2