remove const code duplication

Change-Id: If8330d3f1ce0c92122dcecfc22c32b005deffeb3
Reviewed-on: https://gerrit.libreoffice.org/34702Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Tested-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>

sw/inc/dcontact.hxx

@@ -202,7 +202,8 @@ public:
     virtual const SwAnchoredObject* GetAnchoredObj( const SdrObject* _pSdrObj ) const override;
     virtual SwAnchoredObject* GetAnchoredObj( SdrObject* _pSdrObj ) override;
 
-    virtual const SdrObject* GetMaster() const override;
+    virtual const SdrObject* GetMaster() const override
+            { return const_cast<SwFlyDrawContact*>(this)->GetMaster(); };
     virtual SdrObject* GetMaster() override;
 
     /** override methods to control Writer fly frames,
@@ -385,7 +386,8 @@ class SwDrawContact final : public SwContact
         virtual const SwAnchoredObject* GetAnchoredObj( const SdrObject* _pSdrObj ) const override;
         virtual SwAnchoredObject* GetAnchoredObj( SdrObject* _pSdrObj ) override;
 
-        virtual const SdrObject* GetMaster() const override;
+        virtual const SdrObject* GetMaster() const override
+            { return const_cast<SwDrawContact*>(this)->GetMaster(); };
         virtual SdrObject* GetMaster() override;
 
         const SwFrame* GetAnchorFrame( const SdrObject* _pDrawObj = nullptr ) const;

sw/source/core/draw/dcontact.cxx

@@ -481,11 +481,6 @@ SwAnchoredObject* SwFlyDrawContact::GetAnchoredObj(SdrObject *const pSdrObj)
     return const_cast<SwAnchoredObject *>(const_cast<SwFlyDrawContact const*>(this)->GetAnchoredObj(pSdrObj));
 }
 
-const SdrObject* SwFlyDrawContact::GetMaster() const
-{
-    return mpMasterObj.get();
-}
-
 SdrObject* SwFlyDrawContact::GetMaster()
 {
     return mpMasterObj.get();
@@ -723,13 +718,6 @@ SwAnchoredObject* SwDrawContact::GetAnchoredObj(SdrObject *const pSdrObj)
     return const_cast<SwAnchoredObject*>(const_cast<SwDrawContact const*>(this)->GetAnchoredObj(pSdrObj));
 }
 
-const SdrObject* SwDrawContact::GetMaster() const
-{
-    return !mbMasterObjCleared
-           ? maAnchoredDrawObj.GetDrawObj()
-           : nullptr;
-}
-
 SdrObject* SwDrawContact::GetMaster()
 {
     return !mbMasterObjCleared