macOS: Create NSView as initially hidden, to match QWindow behavior

Initially attempted in 096b56f336e5bb994d46f073d55496d36d38e6b1,
but that broke QQuickWindow::grabWindow(), which at the time was
not prepared for grabbing non-visible windows.

This is no longer an issue, as QQuickWindow::grabWindow() has fallback
logic for non-renderable windows. QWidget::grab() also works fine,
as it grabs from the backingstore directly.

For top level windows we apply the visibility state to both the
NSWindow (orderIn/Out), and to the NSView (hidden=YES/NO).

Pick-to: 6.5
Change-Id: I617b292ca6bfba66e65b55941c5b002e415da88d
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

0 files changed, 0 insertions, 0 deletions