Add back a public slot to procedurally hide a ToolTipArea's tooltip.

src/declarativeimports/core/tooltip.cpp

@@ -224,6 +224,11 @@ void ToolTip::setInteractive(bool interactive)
     emit interactiveChanged();
 }
 
+void ToolTip::hideToolTip()
+{
+    tooltipDialogInstance()->dismiss();
+}
+
 QVariant ToolTip::icon() const
 {
     if (m_icon.isValid()) {

src/declarativeimports/core/tooltip.h

@@ -145,6 +145,12 @@ public:
 
     void setInteractive(bool interactive);
 
+public Q_SLOTS:
+    /**
+     * Hides the tooltip if shown. Does not affect whether the tooltip area is active.
+     */
+    void hideToolTip();
+
 protected:
     bool childMouseEventFilter(QQuickItem *item, QEvent *event);
     void hoverEnterEvent(QHoverEvent *event);