Cleanup CPDFXFA and CPDF document methods

fpdfsdk/fpdfview.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/fpdfview.h"
 
 #include <memory>
 
@@ skipping 519 matching lines @@
 DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document,
                                           int page_index) {
   UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
   if (!pDoc)
     return nullptr;
 
   if (page_index < 0 || page_index >= pDoc->GetPageCount())
     return nullptr;
 
 #ifdef PDF_ENABLE_XFA
-  return pDoc->GetPage(page_index);
+  return pDoc->GetXFAPage(page_index);
 #else   // PDF_ENABLE_XFA
   CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
   if (!pDict)
     return nullptr;
 
   CPDF_Page* pPage = new CPDF_Page(pDoc, pDict, true);
   pPage->ParseContent();
   return pPage;
 #endif  // PDF_ENABLE_XFA
 }
@@ skipping 362 matching lines @@
                                               double* width,
                                               double* height) {
   UnderlyingDocumentType* pDoc = UnderlyingFromFPDFDocument(document);
   if (!pDoc)
     return FALSE;
 
 #ifdef PDF_ENABLE_XFA
   int count = pDoc->GetPageCount();
   if (page_index < 0 || page_index >= count)
     return FALSE;
-  CPDFXFA_Page* pPage = pDoc->GetPage(page_index);
+  CPDFXFA_Page* pPage = pDoc->GetXFAPage(page_index);
   if (!pPage)
     return FALSE;
   *width = pPage->GetPageWidth();
   *height = pPage->GetPageHeight();
 #else   // PDF_ENABLE_XFA
   CPDF_Dictionary* pDict = pDoc->GetPage(page_index);
   if (!pDict)
     return FALSE;
 
   CPDF_Page page(pDoc, pDict, true);
@@ skipping 195 matching lines @@
   if (!buffer) {
     *buflen = len;
   } else if (*buflen >= len) {
     memcpy(buffer, utf16Name.c_str(), len);
     *buflen = len;
   } else {
     *buflen = -1;
   }
   return (FPDF_DEST)pDestObj;
 }