Fix a double-free issue in CFX_PathData::~CFX_PathData

fpdfsdk/src/fsdk_baseform.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 "../include/fsdk_define.h"
 #include "../include/fsdk_mgr.h"
 #include "../include/fsdk_baseannot.h"
 #include "../include/fsdk_baseform.h"
@@ skipping 2266 matching lines @@
         FX_STRSIZE nBufSize = textBuf.GetLength();
         
         if (bUrlEncoded)
         {
                 if(!FDFToURLEncodedData(pBuffer, nBufSize))
                         return FALSE;
         }
 
         pEnv->JS_docSubmitForm(pBuffer, nBufSize, (FX_LPCWSTR)csDestination);
         
-        if (bUrlEncoded && pBuffer)
-        {
-                FX_Free(pBuffer);
-                pBuffer = NULL; 
-        }
-
         return TRUE;
 }
 
 void CPDFSDK_InterForm::DoFDFBuffer(CFX_ByteString sBuffer)
 {
         ASSERT(m_pDocument != NULL);
 
         if (CFDF_Document *pFDFDocument = CFDF_Document::ParseMemory((const unsigned char *)sBuffer.GetBuffer(sBuffer.GetLength()), sBuffer.GetLength()))
         {                                               
                 CPDF_Dictionary* pRootDic = pFDFDocument->GetRoot();
@@ skipping 799 matching lines @@
 
         CPDF_Annot* pPDFAnnot = pAnnot->GetPDFAnnot();
         ASSERT(pPDFAnnot != NULL);
 
         CPDF_Rect rcAnnot;
         pPDFAnnot->GetRect(rcAnnot);
 
         return rcAnnot;
 }