tdf#135743 ignore size-allocations triggered by an embedded SalObject

getting configured, we already ignored them for painting, do the
same for the size-requests it output from our internal configuring

Change-Id: I4c0153535459b089ba6c31e3d9f09bfae2545806
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/100793
Tested-by: Jenkins
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
diff --git a/vcl/unx/gtk3/gtk3gtkframe.cxx b/vcl/unx/gtk3/gtk3gtkframe.cxx
index b4757b3..5b85c5a 100644
--- a/vcl/unx/gtk3/gtk3gtkframe.cxx
+++ b/vcl/unx/gtk3/gtk3gtkframe.cxx
@@ -2928,13 +2928,16 @@ gboolean GtkSalFrame::signalDraw(GtkWidget*, cairo_t *cr, gpointer frame)
void GtkSalFrame::sizeAllocated(GtkWidget* pWidget, GdkRectangle *pAllocation, gpointer frame)
{
    GtkSalFrame* pThis = static_cast<GtkSalFrame*>(frame);
    // ignore size-allocations that occur during configuring an embedded SalObject
    if (pThis->m_bSalObjectSetPosSize)
        return;
    pThis->maGeometry.nWidth = pAllocation->width;
    pThis->maGeometry.nHeight = pAllocation->height;
    bool bRealized = gtk_widget_get_realized(pWidget);
    if (bRealized)
        pThis->AllocateFrame();
    pThis->CallCallbackExc( SalEvent::Resize, nullptr );
    if (bRealized && !pThis->m_bSalObjectSetPosSize)
    if (bRealized)
        pThis->TriggerPaintEvent();
}