loplugin:useuniqueptr in SwitchablePersistenceStream

Change-Id: I8f7d8296b98bc1743b993aac195859b2d2be4f7f
Reviewed-on: https://gerrit.libreoffice.org/53225Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

package/source/xstor/switchpersistencestream.cxx

@@ -112,9 +112,9 @@ void SwitchablePersistenceStream::SwitchPersistenceTo( const uno::Reference< io:
 
     CloseAll_Impl();
 
-    m_pStreamData = new SPStreamData_Impl( false,
+    m_pStreamData.reset( new SPStreamData_Impl( false,
                                             xNewTruncate, xNewSeekable, xNewInStream, xNewOutStream,
-                                            bInOpen, bOutOpen );
+                                            bInOpen, bOutOpen ) );
 }
 
 void SwitchablePersistenceStream::SwitchPersistenceTo( const uno::Reference< io::XInputStream >& xInputStream )
@@ -145,9 +145,9 @@ void SwitchablePersistenceStream::SwitchPersistenceTo( const uno::Reference< io:
 
     CloseAll_Impl();
 
-    m_pStreamData = new SPStreamData_Impl( true,
+    m_pStreamData.reset( new SPStreamData_Impl( true,
                                             xNewTruncate, xNewSeekable, xInputStream, xNewOutStream,
-                                            bInOpen, bOutOpen );
+                                            bInOpen, bOutOpen ) );
 
 }
 
@@ -189,18 +189,14 @@ void SwitchablePersistenceStream::CopyAndSwitchPersistenceTo( const uno::Referen
 
     CloseAll_Impl();
 
-    m_pStreamData = new SPStreamData_Impl( false,
+    m_pStreamData.reset( new SPStreamData_Impl( false,
                                         xTargetTruncate, xTargetSeek, xTargetInStream, xTargetOutStream,
-                                        bInOpen, bOutOpen );
+                                        bInOpen, bOutOpen ) );
 }
 
 void SwitchablePersistenceStream::CloseAll_Impl()
 {
-    if ( m_pStreamData )
-    {
-        delete m_pStreamData;
-        m_pStreamData = nullptr;
-    }
+    m_pStreamData.reset();
 }
 
 // css::io::XStream

package/source/xstor/switchpersistencestream.hxx

@@ -54,7 +54,7 @@ class SwitchablePersistenceStream
 
     const css::uno::Reference< css::uno::XComponentContext > m_xContext;
 
-    SPStreamData_Impl* m_pStreamData;
+    std::unique_ptr<SPStreamData_Impl> m_pStreamData;
 
     void CloseAll_Impl();