Make common paths member variables.

We'll need these for other tests too.

Change-Id: Ia99c2e60f5e5bb24a83875a9dcf85a6b4f54beb4

libreofficekit/qa/unit/tiledrendering.cxx

@@ -157,6 +157,9 @@ void TiledRenderingTest::testOverlay( Office* pOffice )
     // test it's entirely possible that an unwanted lock file will remain.
     // Hence forcefully remove it here.
     remove( sLockFile.c_str() );
+    scoped_ptr< Office > pOffice( lok_cpp_init(
+                                      m_sLOPath.c_str() ) );
+    assert( pOffice.get() );
 
     scoped_ptr< Document> pDocument( pOffice->documentLoad(
                                          sDocPath.c_str() ) );