coverity#707602 Uninitialized pointer field

Change-Id: I70fa5899f3bb1eeb22eb18d77f2c816ec60aa97c
Reviewed-on: https://gerrit.libreoffice.org/2212Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

accessibility/source/standard/vclxaccessibletabpagewindow.cxx

@@ -37,6 +37,8 @@ VCLXAccessibleTabPageWindow::VCLXAccessibleTabPageWindow( VCLXWindow* pVCLXWindo
     :VCLXAccessibleComponent( pVCLXWindow )
 {
     m_pTabPage = static_cast< TabPage* >( GetWindow() );
+    m_pTabControl = 0;
+    m_nPageId = 0;
     if ( m_pTabPage )
     {
         Window* pParent = m_pTabPage->GetAccessibleParentWindow();