coverity#1327445 Unchecked dynamic_cast

and

coverity#1327444 Unchecked dynamic_cast

Change-Id: I459d588db4a3dd6591b81babb3586fe97ab96c63

svx/source/gallery2/galbrws1.cxx

@@ -284,7 +284,7 @@ void GalleryBrowser1::ImplGalleryThemeProperties( const OUString & rThemeName, b
     }
 }
 
-void GalleryBrowser1::ImplEndGalleryThemeProperties( VclAbstractDialog2* pDialog, bool bCreateNew )
+void GalleryBrowser1::ImplEndGalleryThemeProperties(Dialog* pDialog, bool bCreateNew)
 {
     long nRet = pDialog->GetResult();
 
@@ -329,12 +329,12 @@ void GalleryBrowser1::ImplEndGalleryThemeProperties( VclAbstractDialog2* pDialog
 
 IMPL_LINK_TYPED( GalleryBrowser1, EndNewThemePropertiesDlgHdl, Dialog&, rDialog, void )
 {
-    ImplEndGalleryThemeProperties( dynamic_cast<VclAbstractDialog2*>(&rDialog), true );
+    ImplEndGalleryThemeProperties(&rDialog, true);
 }
 
 IMPL_LINK_TYPED( GalleryBrowser1, EndThemePropertiesDlgHdl, Dialog&, rDialog, void )
 {
-    ImplEndGalleryThemeProperties( dynamic_cast<VclAbstractDialog2*>(&rDialog), false );
+    ImplEndGalleryThemeProperties(&rDialog, false);
 }
 
 IMPL_LINK_TYPED( GalleryBrowser1, DestroyThemePropertiesDlgHdl, void*, p, void )

svx/source/gallery2/galbrws1.hxx

@@ -100,7 +100,7 @@ private:
     void                    ImplGetExecuteVector(::std::vector< sal_uInt16 >& o_aExec);
     void                    ImplExecute( sal_uInt16 nId );
     void                    ImplGalleryThemeProperties( const OUString & rThemeName, bool bCreateNew );
-    void                    ImplEndGalleryThemeProperties( VclAbstractDialog2* pDialog, bool bCreateNew );
+    void                    ImplEndGalleryThemeProperties(Dialog* pDialog, bool bCreateNew);
 
     // Control
     virtual void            Resize() override;