Remove IXFA_* interfaces.

xfa/fxfa/app/xfa_rendercontext.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/app/xfa_rendercontext.h"
+#include "xfa/include/fxfa/xfa_rendercontext.h"
 
 #include "xfa/fxfa/app/xfa_ffwidget.h"
 #include "xfa/fxgraphics/include/cfx_graphics.h"
+#include "xfa/include/fxfa/xfa_ffpageview.h"
 
 #define XFA_RENDERCONTEXT_MaxCount 30
 
-IXFA_RenderContext* XFA_RenderContext_Create() {
-  return new CXFA_RenderContext;
-}
 CXFA_RenderContext::CXFA_RenderContext() {
   m_pWidgetIterator = NULL;
   m_pWidget = NULL;
   m_pPageView = NULL;
   m_pGS = NULL;
   m_dwStatus = 0;
   m_matrix.SetIdentity();
   m_rtClipRect.Reset();
 }
 CXFA_RenderContext::~CXFA_RenderContext() {
   StopRender();
 }
-int32_t CXFA_RenderContext::StartRender(IXFA_PageView* pPageView,
+int32_t CXFA_RenderContext::StartRender(CXFA_FFPageView* pPageView,
                                         CFX_Graphics* pGS,
                                         const CFX_Matrix& matrix,
                                         const CXFA_RenderOptions& options) {
   m_pPageView = pPageView;
   m_pGS = pGS;
   m_matrix = matrix;
   m_options = options;
   CFX_RectF rtPage;
   pGS->GetClipRect(rtPage);
   CFX_Matrix mtRes;
@@ skipping 28 matching lines @@
     }
   }
   return XFA_RENDERSTATUS_Done;
 }
 void CXFA_RenderContext::StopRender() {
   if (m_pWidgetIterator) {
     m_pWidgetIterator->Release();
     m_pWidgetIterator = NULL;
   }
 }