loplugin:override

Change-Id: I7ef42d66a0ffbbd8f2754bd4aba0e77659c9ae83

vcl/headless/headlessinst.cxx

@@ -15,7 +15,7 @@ class HeadlessSalInstance : public SvpSalInstance
 public:
     explicit HeadlessSalInstance( SalYieldMutex *pMutex );
 
-    virtual SalSystem* CreateSalSystem();
+    virtual SalSystem* CreateSalSystem() override;
 };
 
 HeadlessSalInstance::HeadlessSalInstance( SalYieldMutex *pMutex ) :
@@ -29,7 +29,7 @@ public:
     virtual int ShowNativeDialog( const OUString& rTitle,
                                   const OUString& rMessage,
                                   const std::list< OUString >& rButtons,
-                                  int nDefButton )
+                                  int nDefButton ) override
     {
         (void)rButtons; (void)nDefButton;
         ::fprintf(stdout, "LibreOffice - dialog '%s': '%s'",
@@ -48,8 +48,8 @@ class HeadlessSalData : public SalGenericData
 {
 public:
     explicit HeadlessSalData( SalInstance *pInstance ) : SalGenericData( SAL_DATA_HEADLESS, pInstance ) {}
-    virtual void ErrorTrapPush() {}
-    virtual bool ErrorTrapPop( bool ) { return false; }
+    virtual void ErrorTrapPush() override {}
+    virtual bool ErrorTrapPop( bool ) override { return false; }
 };
 
 // All the interesting stuff is slaved from the AndroidSalInstance