loplugin:useuniqueptr in WW8PLCFx_FactoidBook

Change-Id: I1ae19c5d0673be4bbc9786539f1e1996e4b4784c
Reviewed-on: https://gerrit.libreoffice.org/58571
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sw/source/filter/ww8/ww8scan.cxx

@@ -4668,13 +4668,12 @@ WW8PLCFx_FactoidBook::WW8PLCFx_FactoidBook(SvStream* pTableSt, const WW8Fib& rFi
 {
     if (!rFib.m_fcPlcfBkfFactoid || !rFib.m_lcbPlcfBkfFactoid || !rFib.m_fcPlcfBklFactoid || !rFib.m_lcbPlcfBklFactoid)
     {
-        m_pBook[0] = m_pBook[1] = nullptr;
         m_nIMax = 0;
     }
     else
     {
-        m_pBook[0] = new WW8PLCFspecial(pTableSt, rFib.m_fcPlcfBkfFactoid, rFib.m_lcbPlcfBkfFactoid, 6);
-        m_pBook[1] = new WW8PLCFspecial(pTableSt, rFib.m_fcPlcfBklFactoid, rFib.m_lcbPlcfBklFactoid, 4);
+        m_pBook[0].reset(new WW8PLCFspecial(pTableSt, rFib.m_fcPlcfBkfFactoid, rFib.m_lcbPlcfBkfFactoid, 6));
+        m_pBook[1].reset(new WW8PLCFspecial(pTableSt, rFib.m_fcPlcfBklFactoid, rFib.m_lcbPlcfBklFactoid, 4));
 
         m_nIMax = m_pBook[0]->GetIMax();
         if (m_pBook[1]->GetIMax() < m_nIMax)
@@ -4684,8 +4683,6 @@ WW8PLCFx_FactoidBook::WW8PLCFx_FactoidBook(SvStream* pTableSt, const WW8Fib& rFi
 
 WW8PLCFx_FactoidBook::~WW8PLCFx_FactoidBook()
 {
-    delete m_pBook[1];
-    delete m_pBook[0];
 }
 
 sal_uInt32 WW8PLCFx_FactoidBook::GetIdx() const

sw/source/filter/ww8/ww8scan.hxx

@@ -820,7 +820,7 @@ class WW8PLCFx_FactoidBook : public WW8PLCFx
 {
 private:
     /// Start and end positions.
-    WW8PLCFspecial* m_pBook[2];
+    std::unique_ptr<WW8PLCFspecial> m_pBook[2];
     /// Number of factoid marks
     sal_Int32 m_nIMax;
     bool m_bIsEnd;