Remove IXFA_* interfaces.

xfa/fxfa/app/xfa_ffpageview.h

Index: xfa/fxfa/app/xfa_ffpageview.h
diff --git a/xfa/fxfa/app/xfa_ffpageview.h b/xfa/fxfa/app/xfa_ffpageview.h
deleted file mode 100644
index 20818e71075bb8d9d9dd75e380ef7766be602120..0000000000000000000000000000000000000000
--- a/xfa/fxfa/app/xfa_ffpageview.h
+++ /dev/null
@@ -1,111 +0,0 @@
-// 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
-
-#ifndef XFA_FXFA_APP_XFA_FFPAGEVIEW_H_
-#define XFA_FXFA_APP_XFA_FFPAGEVIEW_H_
-
-#include "xfa/fxfa/parser/xfa_doclayout.h"
-
-class CXFA_FFWidget;
-class CXFA_FFDocView;
-class CXFA_FFPageView : public CXFA_ContainerLayoutItem, public IXFA_PageView {
- public:
-  CXFA_FFPageView(CXFA_FFDocView* pDocView, CXFA_Node* pPageArea);
-  ~CXFA_FFPageView() override;
-
-  // IFXA_PageView:
-  IXFA_DocView* GetDocView() override;
-  int32_t GetPageViewIndex() override;
-  void GetPageViewRect(CFX_RectF& rtPage) override;
-  void GetDisplayMatrix(CFX_Matrix& mt,
-                        const CFX_Rect& rtDisp,
-                        int32_t iRotate) override;
-  int32_t LoadPageView(IFX_Pause* pPause = NULL) override;
-  void UnloadPageView() override;
-  IXFA_Widget* GetWidgetByPos(FX_FLOAT fx, FX_FLOAT fy) override;
-  IXFA_WidgetIterator* CreateWidgetIterator(
-      uint32_t dwTraverseWay = XFA_TRAVERSEWAY_Form,
-      uint32_t dwWidgetFilter = XFA_WIDGETFILTER_Visible |
-                                XFA_WIDGETFILTER_Viewable |
-                                XFA_WIDGETFILTER_AllType) override;
-
-  FX_BOOL IsPageViewLoaded();
-
- protected:
-  CXFA_FFDocView* m_pDocView;
-  FX_BOOL m_bLoaded;
-};
-typedef CXFA_NodeIteratorTemplate<CXFA_LayoutItem,
-                                  CXFA_TraverseStrategy_LayoutItem>
-    CXFA_LayoutItemIterator;
-class CXFA_FFPageWidgetIterator : public IXFA_WidgetIterator {
- public:
-  CXFA_FFPageWidgetIterator(CXFA_FFPageView* pPageView, uint32_t dwFilter);
-  virtual ~CXFA_FFPageWidgetIterator();
-  virtual void Release() { delete this; }
-
-  virtual void Reset();
-  virtual IXFA_Widget* MoveToFirst();
-  virtual IXFA_Widget* MoveToLast();
-  virtual IXFA_Widget* MoveToNext();
-  virtual IXFA_Widget* MoveToPrevious();
-  virtual IXFA_Widget* GetCurrentWidget();
-  virtual FX_BOOL SetCurrentWidget(IXFA_Widget* hWidget);
-
- protected:
-  IXFA_Widget* GetWidget(CXFA_LayoutItem* pLayoutItem);
-  CXFA_FFPageView* m_pPageView;
-  IXFA_Widget* m_hCurWidget;
-  uint32_t m_dwFilter;
-  FX_BOOL m_bIgnorerelevant;
-  CXFA_LayoutItemIterator m_sIterator;
-};
-typedef CFX_ArrayTemplate<CXFA_FFWidget*> CXFA_WidgetArray;
-class CXFA_TabParam {
- public:
-  CXFA_TabParam() : m_pWidget(NULL) {}
-  ~CXFA_TabParam() {}
-
-  CXFA_FFWidget* m_pWidget;
-  CXFA_WidgetArray m_Children;
-};
-class CXFA_FFTabOrderPageWidgetIterator : public IXFA_WidgetIterator {
- public:
-  CXFA_FFTabOrderPageWidgetIterator(CXFA_FFPageView* pPageView,
-                                    uint32_t dwFilter);
-  virtual ~CXFA_FFTabOrderPageWidgetIterator();
-
-  virtual void Release();
-
-  virtual void Reset();
-  virtual IXFA_Widget* MoveToFirst();
-  virtual IXFA_Widget* MoveToLast();
-  virtual IXFA_Widget* MoveToNext();
-  virtual IXFA_Widget* MoveToPrevious();
-  virtual IXFA_Widget* GetCurrentWidget();
-  virtual FX_BOOL SetCurrentWidget(IXFA_Widget* hWidget);
-
- protected:
-  CXFA_WidgetArray m_TabOrderWidgetArray;
-  CXFA_FFPageView* m_pPageView;
-  uint32_t m_dwFilter;
-  int32_t m_iCurWidget;
-  FX_BOOL m_bIgnorerelevant;
-  CXFA_FFWidget* GetTraverseWidget(CXFA_FFWidget* pWidget);
-  CXFA_FFWidget* FindWidgetByName(const CFX_WideStringC& wsWidgetName,
-                                  CXFA_FFWidget* pRefWidget);
-  void CreateTabOrderWidgetArray();
-  void CreateSpaceOrderWidgetArray(CXFA_WidgetArray& WidgetArray);
-  CXFA_FFWidget* GetWidget(CXFA_LayoutItem* pLayoutItem);
-  void OrderContainer(CXFA_LayoutItemIterator* sIterator,
-                      CXFA_LayoutItem* pContainerItem,
-                      CXFA_TabParam* pContainer,
-                      FX_BOOL& bCurrentItem,
-                      FX_BOOL& bContentArea,
-                      FX_BOOL bMarsterPage = FALSE);
-};
-
-#endif  // XFA_FXFA_APP_XFA_FFPAGEVIEW_H_