Fix GetPageIndex() for dynamic XFA documents.

xfa/fxfa/app/xfa_ffpageview.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 "xfa/fxfa/include/xfa_ffpageview.h"
 
 #include "xfa/fde/fde_render.h"
 #include "xfa/fxfa/app/xfa_ffcheckbutton.h"
@@ skipping 84 matching lines @@
 
 CXFA_FFPageView::CXFA_FFPageView(CXFA_FFDocView* pDocView, CXFA_Node* pPageArea)
     : CXFA_ContainerLayoutItem(pPageArea), m_pDocView(pDocView) {}
 
 CXFA_FFPageView::~CXFA_FFPageView() {}
 
 CXFA_FFDocView* CXFA_FFPageView::GetDocView() const {
   return m_pDocView;
 }
 
-int32_t CXFA_FFPageView::GetPageViewIndex() const {
-  return GetPageIndex();
-}
-
 void CXFA_FFPageView::GetPageViewRect(CFX_RectF& rtPage) const {
   CFX_SizeF sz;
   GetPageSize(sz);
   rtPage.Set(0, 0, sz);
 }
 void CXFA_FFPageView::GetDisplayMatrix(CFX_Matrix& mt,
                                        const CFX_Rect& rtDisp,
                                        int32_t iRotate) const {
   CFX_SizeF sz;
   GetPageSize(sz);
@@ skipping 310 matching lines @@
     CXFA_LayoutItem* pLayoutItem) {
   if (CXFA_FFWidget* pWidget = XFA_GetWidgetFromLayoutItem(pLayoutItem)) {
     if (!pWidget->IsLoaded() &&
         (pWidget->GetStatus() & XFA_WidgetStatus_Visible)) {
       pWidget->LoadWidget();
     }
     return pWidget;
   }
   return NULL;
 }