Calculate positions of cell-anchored objects upon ods import.

Since we no longer re-calc row heights on ods import, we need to do
this manually, in order to position cell-anchored objects correctly.
Previously we were getting this for free since the row height recalc
code path did it as part of it.

Change-Id: I8ab5dd1fe7cd8a45b7968e101c893b442d7ce132

sc/source/filter/xml/xmlimprt.cxx

@@ -3101,8 +3101,11 @@ throw( ::com::sun::star::xml::sax::SAXException, ::com::sun::star::uno::RuntimeE
 
             SCTAB nTabCount = pDoc->GetTableCount();
             for (SCTAB nTab=0; nTab<nTabCount; ++nTab)
+            {
+                pDoc->SetDrawPageSize(nTab);
                 if (!pSheetData->IsSheetBlocked( nTab ))
                     pDoc->SetStreamValid( nTab, true );
+            }
         }
         aTables.FixupOLEs();
     }