Remove dead code from CPDF_InterForm.

fpdfsdk/fpdf_ext.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 "public/fpdf_ext.h"
 
+#include <memory>
+
 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/include/cpdf_modulemgr.h"
 #include "core/fxcrt/include/fx_xml.h"
 #include "fpdfsdk/include/fsdk_define.h"
 
 #ifdef PDF_ENABLE_XFA
 #include "fpdfsdk/fpdfxfa/include/fpdfxfa_doc.h"
 #endif  // PDF_ENABLE_XFA
 
 #define FPDFSDK_UNSUPPORT_CALL 100
 
 class CFSDK_UnsupportInfo_Adapter {
  public:
-  CFSDK_UnsupportInfo_Adapter(UNSUPPORT_INFO* unsp_info) {
-    m_unsp_info = unsp_info;
-  }
+  explicit CFSDK_UnsupportInfo_Adapter(UNSUPPORT_INFO* unsp_info)
+      : m_unsp_info(unsp_info) {}
+
   void ReportError(int nErrorType);
 
  private:
-  UNSUPPORT_INFO* m_unsp_info;
+  UNSUPPORT_INFO* const m_unsp_info;
 };
 
 void CFSDK_UnsupportInfo_Adapter::ReportError(int nErrorType) {
   if (m_unsp_info && m_unsp_info->FSDK_UnSupport_Handler) {
     m_unsp_info->FSDK_UnSupport_Handler(m_unsp_info, nErrorType);
   }
 }
 
 void FreeUnsupportInfo(void* pData) {
   CFSDK_UnsupportInfo_Adapter* pAdapter = (CFSDK_UnsupportInfo_Adapter*)pData;
@@ skipping 136 matching lines @@
   }
 
   // SharedForm
   CPDF_Metadata metaData(pDoc);
   const CXML_Element* pElement = metaData.GetRoot();
   if (pElement)
     CheckSharedForm(pElement, "workflowType");
 
 #ifndef PDF_ENABLE_XFA
   // XFA Forms
-  CPDF_InterForm* pInterForm = new CPDF_InterForm(pDoc, FALSE);
-  if (pInterForm->HasXFAForm()) {
+  CPDF_InterForm interform(pDoc);
+  if (interform.HasXFAForm())
     FPDF_UnSupportError(FPDF_UNSP_DOC_XFAFORM);
-  }
-  delete pInterForm;
 #endif  // PDF_ENABLE_XFA
 }
 
 DLLEXPORT int STDCALL FPDFDoc_GetPageMode(FPDF_DOCUMENT document) {
   CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
   if (!pDoc)
     return PAGEMODE_UNKNOWN;
 
   CPDF_Dictionary* pRoot = pDoc->GetRoot();
   if (!pRoot)
@@ skipping 12 matching lines @@
     return PAGEMODE_USETHUMBS;
   if (strPageMode.EqualNoCase("FullScreen"))
     return PAGEMODE_FULLSCREEN;
   if (strPageMode.EqualNoCase("UseOC"))
     return PAGEMODE_USEOC;
   if (strPageMode.EqualNoCase("UseAttachments"))
     return PAGEMODE_USEATTACHMENTS;
 
   return PAGEMODE_UNKNOWN;
 }