Send missing visibilityChanged signals to output panes.

Change-Id: Ic2de484904c8be2f3110c7e083c3691a174a5781
Reviewed-on: http://codereview.qt.nokia.com/2785Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/coreplugin/outputpanemanager.cpp

@@ -97,6 +97,8 @@ void OutputPaneManager::updateStatusButtons(bool visible)
     int idx = m_widgetComboBox->itemData(m_widgetComboBox->currentIndex()).toInt();
     if (m_buttons.value(idx))
         m_buttons.value(idx)->setChecked(visible);
+    if (m_pageMap.value(idx))
+        m_pageMap.value(idx)->visibilityChanged(visible);
     m_minMaxAction->setVisible(OutputPanePlaceHolder::getCurrent()
                                && OutputPanePlaceHolder::getCurrent()->canMaximizeOrMinimize());
 }
@@ -382,6 +384,8 @@ void OutputPaneManager::slotHide()
         int idx = m_widgetComboBox->itemData(m_widgetComboBox->currentIndex()).toInt();
         if (m_buttons.value(idx))
             m_buttons.value(idx)->setChecked(false);
+        if (m_pageMap.value(idx))
+            m_pageMap.value(idx)->visibilityChanged(false);
         if (IEditor *editor = Core::EditorManager::instance()->currentEditor())
             editor->widget()->setFocus();
     }