XFA: Fix memory leakage on Linux - part 1

fpdfsdk/src/fpdfxfa/fpdfxfa_doc.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fpdfsdk/include/fsdk_define.h"
 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h"
 #include "fpdfsdk/include/fsdk_mgr.h"
 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h"
@@ skipping 47 matching lines @@
       delete m_pPDFDoc;
   }
   if (m_pXFADoc) {
     IXFA_App* pApp = m_pApp->GetXFAApp();
     if (pApp) {
       IXFA_DocHandler* pDocHandler = pApp->GetDocHandler();
       if (pDocHandler) {
         CloseXFADoc(pDocHandler);
       }
     }
+    delete m_pXFADoc;
   }
 }
 
 FX_BOOL CPDFXFA_Document::LoadXFADoc() {
   if (!m_pPDFDoc)
     return FALSE;
 
   m_XFAPageList.RemoveAll();
 
   IXFA_App* pApp = m_pApp->GetXFAApp();
@@ skipping 1173 matching lines @@
   }
 
   return _GetHValueByName(szPropName, hValue,
                           m_pSDKDoc->GetEnv()->GetJSRuntime());
 }
 FX_BOOL CPDFXFA_Document::_GetHValueByName(const CFX_ByteStringC& utf8Name,
                                            FXJSE_HVALUE hValue,
                                            IJS_Runtime* runTime) {
   return runTime->GetHValueByName(utf8Name, hValue);
 }