loplugin:useuniqueptr in XclImpChangeTrack

Change-Id: I360720b5c0402982e58416f9c902388034e5ecee
Reviewed-on: https://gerrit.libreoffice.org/57301
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sc/source/filter/inc/XclImpChangeTrack.hxx

@@ -55,8 +55,8 @@ private:
     OUString                    sOldUsername;
 
     std::unique_ptr<ScChangeTrack> pChangeTrack;
-    tools::SvRef<SotStorageStream>          xInStrm;        // input stream
-    XclImpStream*               pStrm;          // stream import class
+    tools::SvRef<SotStorageStream> xInStrm;        // input stream
+    std::unique_ptr<XclImpStream>  pStrm;          // stream import class
     sal_uInt16                  nTabIdCount;
     bool                        bGlobExit;      // global exit loop
 

sc/source/filter/xcl97/XclImpChangeTrack.cxx

@@ -56,7 +56,7 @@ XclImpChangeTrack::XclImpChangeTrack( const XclImpRoot& rRoot, const XclImpStrea
         if( (xInStrm->GetErrorCode() == ERRCODE_NONE) && (nStreamLen != STREAM_SEEK_TO_END) )
         {
             xInStrm->Seek( STREAM_SEEK_TO_BEGIN );
-            pStrm = new XclImpStream( *xInStrm, GetRoot() );
+            pStrm.reset( new XclImpStream( *xInStrm, GetRoot() ) );
             pStrm->CopyDecrypterFrom( rBookStrm );
             pChangeTrack.reset(new ScChangeTrack( &GetDocRef() ));
 
@@ -71,7 +71,7 @@ XclImpChangeTrack::XclImpChangeTrack( const XclImpRoot& rRoot, const XclImpStrea
 XclImpChangeTrack::~XclImpChangeTrack()
 {
     pChangeTrack.reset();
-    delete pStrm;
+    pStrm.reset();
 }
 
 void XclImpChangeTrack::DoAcceptRejectAction( ScChangeAction* pAction )