Destroy window before cleaning up combobox

fpdfsdk/formfiller/cffl_textfield.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/formfiller/cffl_textfield.h"
 
 #include "fpdfsdk/formfiller/cba_fontmap.h"
 #include "fpdfsdk/include/cpdfsdk_widget.h"
 #include "fpdfsdk/include/fsdk_common.h"
 #include "fpdfsdk/include/fsdk_mgr.h"
 
 CFFL_TextField::CFFL_TextField(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnnot)
     : CFFL_FormFiller(pApp, pAnnot) {}
 
 CFFL_TextField::~CFFL_TextField() {
   for (const auto& it : m_Maps)
     it.second->InvalidateFocusHandler(this);
+
+  // See comment in cffl_formfiller.h.
+  // The font map should be stored somewhere more appropriate so it will live
+  // until the PWL_Edit is done with it. pdfium:566
+  DestroyWindows();
 }
 
 PWL_CREATEPARAM CFFL_TextField::GetCreateParam() {
   PWL_CREATEPARAM cp = CFFL_FormFiller::GetCreateParam();
 
   int nFlags = m_pWidget->GetFieldFlags();
 
   if (nFlags & FIELDFLAG_PASSWORD) {
     cp.dwFlags |= PES_PASSWORD;
   }
@@ skipping 242 matching lines @@
 
     pEdit->SetReadyToInput();
     CFX_WideString wsText = pEdit->GetText();
     int nCharacters = wsText.GetLength();
     CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
     unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
     m_pApp->FFI_OnSetFieldInputFocus(m_pWidget->GetFormField(), pBuffer,
                                      nCharacters, TRUE);
   }
 }