loplugin:useuniqueptr in DlgQryJoin

Change-Id: Ia9a5534b6d69dde163fae54fbd2764dc9b279a5d
Reviewed-on: https://gerrit.libreoffice.org/54855Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

dbaccess/source/ui/querydesign/querydlg.cxx

@@ -67,7 +67,7 @@ DlgQryJoin::DlgQryJoin( OQueryTableView * pParent,
     m_pConnData.reset(_pData->NewInstance());
     m_pConnData->CopyFrom(*_pData);
 
-    m_pTableControl = new OTableListBoxControl(this, _pTableMap, this);
+    m_pTableControl.reset(new OTableListBoxControl(this, _pTableMap, this));
 
     m_pCBNatural->Check(static_cast<OQueryTableConnectionData*>(m_pConnData.get())->isNatural());
 
@@ -143,7 +143,7 @@ DlgQryJoin::~DlgQryJoin()
 
 void DlgQryJoin::dispose()
 {
-    delete m_pTableControl;
+    m_pTableControl.reset();
     m_pML_HelpText.clear();
     m_pPB_OK.clear();
     m_pLB_JoinType.clear();

dbaccess/source/ui/querydesign/querydlg.hxx

@@ -43,7 +43,7 @@ namespace dbaui
         VclPtr<ListBox>                m_pLB_JoinType;
         VclPtr<CheckBox>               m_pCBNatural;
 
-        OTableListBoxControl*               m_pTableControl;
+        std::unique_ptr<OTableListBoxControl> m_pTableControl;
 
         EJoinType                           eJoinType;
         TTableConnectionData::value_type    m_pConnData; // contains left and right table