2 files changed, 13 insertions, 30 deletions
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
index ad0615528f..f4120896a8 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_page.cpp
@@ -22,18 +22,6 @@ CPDFXFA_Page::CPDFXFA_Page(CPDFXFA_Context* pContext, int page_index)
 
 CPDFXFA_Page::~CPDFXFA_Page() {}
 
-CPDF_Page* CPDFXFA_Page::AsPDFPage() {
-  return m_pPDFPage.Get();
-}
-
-CPDFXFA_Page* CPDFXFA_Page::AsXFAPage() {
-  return this;
-}
-
-CPDF_Document* CPDFXFA_Page::GetDocument() const {
-  return GetDocumentExtension()->GetPDFDoc();
-}
-
 bool CPDFXFA_Page::LoadPDFPage() {
   if (!m_pContext)
     return false;
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_page.h b/fpdfsdk/fpdfxfa/cpdfxfa_page.h
index 76c425f82b..2573b9cebd 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_page.h
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_page.h
@@ -10,7 +10,6 @@
 #include <memory>
 
 #include "core/fpdfapi/page/cpdf_page.h"
-#include "core/fpdfapi/page/ipdf_page.h"
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fxcrt/fx_coordinates.h"
 #include "core/fxcrt/fx_system.h"
@@ -22,39 +21,35 @@ class CPDF_Dictionary;
 class CPDFXFA_Context;
 class CXFA_FFPageView;
 
-class CPDFXFA_Page : public IPDF_Page {
+class CPDFXFA_Page : public CPDF_Page::Extension {
  public:
   template <typename T, typename... Args>
   friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);
 
-  // IPDF_Page:
-  CPDF_Page* AsPDFPage() override;
-  CPDFXFA_Page* AsXFAPage() override;
-  CPDF_Document* GetDocument() const override;
-  float GetPageWidth() const override;
-  float GetPageHeight() const override;
-  CFX_Matrix GetDisplayMatrix(const FX_RECT& rect, int iRotate) const override;
-  Optional<CFX_PointF> DeviceToPage(
-      const FX_RECT& rect,
-      int rotate,
-      const CFX_PointF& device_point) const override;
-  Optional<CFX_PointF> PageToDevice(
-      const FX_RECT& rect,
-      int rotate,
-      const CFX_PointF& page_point) const override;
-
   bool LoadPage();
   bool LoadPDFPage(CPDF_Dictionary* pageDict);
 
   CPDF_Document::Extension* GetDocumentExtension() const;
 
   int GetPageIndex() const { return m_iPageIndex; }
+  CPDF_Page* GetPDFPage() const { return m_pPDFPage.Get(); }
   CXFA_FFPageView* GetXFAPageView() const { return m_pXFAPageView; }
 
   void SetXFAPageView(CXFA_FFPageView* pPageView) {
     m_pXFAPageView = pPageView;
   }
 
+  float GetPageWidth() const;
+  float GetPageHeight() const;
+
+  Optional<CFX_PointF> DeviceToPage(const FX_RECT& rect,
+                                    int rotate,
+                                    const CFX_PointF& device_point) const;
+  Optional<CFX_PointF> PageToDevice(const FX_RECT& rect,
+                                    int rotate,
+                                    const CFX_PointF& page_point) const;
+
+  CFX_Matrix GetDisplayMatrix(const FX_RECT& rect, int iRotate) const;
 
  protected:
   // Refcounted class.