loplugin:useuniqueptr in ScProgress

Change-Id: I92d3c3c52b5735de915db1a208cb7c0d68b4c7a0
Reviewed-on: https://gerrit.libreoffice.org/52342Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sc/inc/progress.hxx

@@ -50,7 +50,7 @@ private:
     static  bool            bIdleWasEnabled;
             bool            bEnabled;
 
-            SfxProgress*    pProgress;
+            std::unique_ptr<SfxProgress> pProgress;
 
                             ScProgress( const ScProgress& ) = delete;
             ScProgress&     operator=( const ScProgress& ) = delete;

sc/source/core/tool/progress.cxx

@@ -106,8 +106,8 @@ ScProgress::ScProgress(SfxObjectShell* pObjSh, const OUString& rText,
     }
     else
     {
-        pProgress = new SfxProgress( pObjSh, rText, nRange, bWait );
-        pGlobalProgress = pProgress;
+        pProgress.reset(new SfxProgress( pObjSh, rText, nRange, bWait ));
+        pGlobalProgress = pProgress.get();
         nGlobalRange = nRange;
         nGlobalPercent = 0;
     }
@@ -124,7 +124,7 @@ ScProgress::~ScProgress()
 {
     if ( pProgress )
     {
-        delete pProgress;
+        pProgress.reset();
         pGlobalProgress = nullptr;
         nGlobalRange = 0;
         nGlobalPercent = 0;