sw RTF filter: more cleanup of redundant virtual keywords

Change-Id: Ia2596e11f303edf5e1b81ab90062fd93df42159b
Reviewed-on: https://gerrit.libreoffice.org/38847Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Jenkins <ci@libreoffice.org>

sw/source/filter/ww8/rtfexportfilter.hxx

@@ -48,14 +48,14 @@ protected:
     css::uno::Reference<css::lang::XComponent> m_xSrcDoc;
 public:
     explicit RtfExportFilter(css::uno::Reference<css::uno::XComponentContext> xCtx);
-    virtual ~RtfExportFilter() override;
+    ~RtfExportFilter() override;
 
     // XFilter
-    virtual sal_Bool SAL_CALL filter(const css::uno::Sequence<css::beans::PropertyValue>& aDescriptor) override;
-    virtual void SAL_CALL cancel() override;
+    sal_Bool SAL_CALL filter(const css::uno::Sequence<css::beans::PropertyValue>& aDescriptor) override;
+    void SAL_CALL cancel() override;
 
     // XExporter
-    virtual void SAL_CALL setSourceDocument(const css::uno::Reference<css::lang::XComponent>& xDoc) override;
+    void SAL_CALL setSourceDocument(const css::uno::Reference<css::lang::XComponent>& xDoc) override;
 
     RtfWriter m_aWriter;
 };

sw/source/filter/ww8/rtfstringbuffer.cxx

@@ -9,11 +9,7 @@
 #include "rtfstringbuffer.hxx"
 #include "rtfattributeoutput.hxx"
 
-RtfStringBufferValue::RtfStringBufferValue()
-    : m_pFlyFrameFormat(nullptr),
-      m_pGrfNode(nullptr)
-{
-}
+RtfStringBufferValue::RtfStringBufferValue() = default;
 
 RtfStringBufferValue::RtfStringBufferValue(const SwFlyFrameFormat* pFlyFrameFormat, const SwGrfNode* pGrfNode)
     : m_pFlyFrameFormat(pFlyFrameFormat),

sw/source/filter/ww8/rtfstringbuffer.hxx

@@ -31,8 +31,8 @@ public:
     bool isGraphic() const;
 
     OStringBuffer m_aBuffer;
-    const SwFlyFrameFormat* m_pFlyFrameFormat;
-    const SwGrfNode* m_pGrfNode;
+    const SwFlyFrameFormat* m_pFlyFrameFormat = nullptr;
+    const SwGrfNode* m_pGrfNode = nullptr;
 };
 
 /// Wrapper around OStringBuffers, so less hexdump of graphics have to be kept in memory during RTF export.

sw/source/uibase/docvw/SidebarScrollBar.hxx

@@ -40,7 +40,7 @@ protected:
     void MouseButtonUp(const MouseEvent& rMouseEvent) override;
 public:
     SidebarScrollBar(sw::annotation::SwAnnotationWin& rSidebarWin, WinBits nStyle, SwView& rView);
-    virtual ~SidebarScrollBar() override;
+    ~SidebarScrollBar() override;
 };
 
 }