loplugin:useuniqueptr in SfxModalDialog

Change-Id: I612b92045c3a1cf4a443adf2b35fe7ac6f1aa0bf
Reviewed-on: https://gerrit.libreoffice.org/53868Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/sfx2/basedlgs.hxx

@@ -47,7 +47,7 @@ class SFX2_DLLPUBLIC SfxModalDialog: public ModalDialog
 {
     OUString                aExtraData;
     const SfxItemSet*       pInputSet;
-    SfxItemSet*             pOutputSet;
+    std::unique_ptr<SfxItemSet> pOutputSet;
 
 private:
     SfxModalDialog(SfxModalDialog &) = delete;
@@ -62,13 +62,13 @@ protected:
     OUString&           GetExtraData()      { return aExtraData; }
     void                CreateOutputItemSet( const SfxItemSet& rInput );
     void                SetInputSet( const SfxItemSet* pInSet ) { pInputSet = pInSet; }
-    SfxItemSet*         GetOutputSetImpl() { return pOutputSet; }
+    SfxItemSet*         GetOutputSetImpl() { return pOutputSet.get(); }
 
 public:
     virtual ~SfxModalDialog() override;
     virtual void dispose() override;
 
-    const SfxItemSet*   GetOutputItemSet() const { return pOutputSet; }
+    const SfxItemSet*   GetOutputItemSet() const { return pOutputSet.get(); }
     const SfxItemSet*   GetInputItemSet() const { return pInputSet; }
     void                StateChanged( StateChangedType nStateChange ) override;
 };

sfx2/source/dialog/basedlgs.cxx

@@ -138,7 +138,7 @@ SfxModalDialog::~SfxModalDialog()
 void SfxModalDialog::dispose()
 {
     SetDialogData_Impl();
-    delete pOutputSet;
+    pOutputSet.reset();
 
     ModalDialog::dispose();
 }
@@ -148,7 +148,7 @@ void SfxModalDialog::CreateOutputItemSet( const SfxItemSet& rSet )
     DBG_ASSERT( !pOutputSet, "Double creation of OutputSet!" );
     if (!pOutputSet)
     {
-        pOutputSet = new SfxItemSet( rSet );
+        pOutputSet.reset(new SfxItemSet( rSet ));
         pOutputSet->ClearItem();
     }
 }