loplugin:useuniqueptr in SwUndoDrawDelete

Change-Id: I7d7e89a9ffa67141e459772791caae2937458b8f
Reviewed-on: https://gerrit.libreoffice.org/57425
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/source/core/inc/UndoDraw.hxx

@@ -116,7 +116,7 @@ public:
 class SwUndoDrawDelete : public SwUndo
 {
     std::unique_ptr<SwUndoGroupObjImpl[]> pObjArr;
-    SdrMarkList* pMarkLst;  // MarkList for all selected SdrObjects
+    std::unique_ptr<SdrMarkList> pMarkLst;  // MarkList for all selected SdrObjects
     bool bDelFormat;
 
 public:

sw/source/core/undo/undraw.cxx

@@ -479,7 +479,7 @@ SwUndoDrawDelete::SwUndoDrawDelete( sal_uInt16 nCnt, const SwDoc* pDoc )
     : SwUndo( SwUndoId::DRAWDELETE, pDoc ), bDelFormat( true )
 {
     pObjArr.reset( new SwUndoGroupObjImpl[ nCnt ] );
-    pMarkLst = new SdrMarkList();
+    pMarkLst.reset( new SdrMarkList() );
 }
 
 SwUndoDrawDelete::~SwUndoDrawDelete()
@@ -490,7 +490,6 @@ SwUndoDrawDelete::~SwUndoDrawDelete()
         for( size_t n = 0; n < pMarkLst->GetMarkCount(); ++n, ++pTmp )
             delete pTmp->pFormat;
     }
-    delete pMarkLst;
 }
 
 void SwUndoDrawDelete::UndoImpl(::sw::UndoRedoContext & rContext)
@@ -516,7 +515,7 @@ void SwUndoDrawDelete::UndoImpl(::sw::UndoRedoContext & rContext)
         if (pDrawFrameFormat)
             pDrawFrameFormat->PosAttrSet();
     }
-    rContext.SetSelections(nullptr, pMarkLst);
+    rContext.SetSelections(nullptr, pMarkLst.get());
 }
 
 void SwUndoDrawDelete::RedoImpl(::sw::UndoRedoContext & rContext)