loplugin:useuniqueptr in XMLTextParagraphExport

Change-Id: I753bbfc60172a36e1f3ba08398dc17ee14e0c551
Reviewed-on: https://gerrit.libreoffice.org/53604
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

include/xmloff/txtparae.hxx

@@ -109,7 +109,7 @@ class XMLOFF_DLLPUBLIC XMLTextParagraphExport : public XMLStyleExport
     bool                        bOpenRuby;
 
     XMLTextListsHelper* mpTextListsHelper;
-    ::std::vector< XMLTextListsHelper* > maTextListsHelperStack;
+    ::std::vector< std::unique_ptr<XMLTextListsHelper> > maTextListsHelperStack;
 
     enum class FrameType { Text, Graphic, Embedded, Shape };
 public:

xmloff/qa/unit/uxmloff.cxx

@@ -43,7 +43,7 @@ public:
     CPPUNIT_TEST(testMetaGenerator);
     CPPUNIT_TEST_SUITE_END();
 private:
-    SvXMLExport *pExport;
+    std::unique_ptr<SvXMLExport> pExport;
 };
 
 Test::Test()
@@ -55,14 +55,14 @@ void Test::setUp()
 {
     BootstrapFixture::setUp();
 
-    pExport = new SchXMLExport(
+    pExport.reset(new SchXMLExport(
         comphelper::getProcessComponentContext(), "SchXMLExport.Compact",
-        SvXMLExportFlags::ALL);
+        SvXMLExportFlags::ALL));
 }
 
 void Test::tearDown()
 {
-    delete pExport;
+    pExport.reset();
     BootstrapFixture::tearDown();
 }
 

xmloff/source/text/txtparae.cxx

@@ -3844,18 +3844,17 @@ void XMLTextParagraphExport::PreventExportOfControlsInMuteSections(
 
 void XMLTextParagraphExport::PushNewTextListsHelper()
 {
-    mpTextListsHelper = new XMLTextListsHelper();
-    maTextListsHelperStack.push_back( mpTextListsHelper );
+    maTextListsHelperStack.emplace_back( new XMLTextListsHelper() );
+    mpTextListsHelper = maTextListsHelperStack.back().get();
 }
 
 void XMLTextParagraphExport::PopTextListsHelper()
 {
-    delete mpTextListsHelper;
     mpTextListsHelper = nullptr;
     maTextListsHelperStack.pop_back();
     if ( !maTextListsHelperStack.empty() )
     {
-        mpTextListsHelper = maTextListsHelperStack.back();
+        mpTextListsHelper = maTextListsHelperStack.back().get();
     }
 }