Remove IXFA_* interfaces.

xfa/fxfa/app/xfa_fffield.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_fffield.h"
 
 #include "xfa/fwl/basewidget/ifwl_edit.h"
 #include "xfa/fwl/core/cfwl_message.h"
 #include "xfa/fwl/core/ifwl_widgetmgrdelegate.h"
 #include "xfa/fwl/lightwidget/cfwl_edit.h"
 #include "xfa/fwl/lightwidget/cfwl_picturebox.h"
-#include "xfa/fxfa/app/xfa_ffapp.h"
-#include "xfa/fxfa/app/xfa_ffdoc.h"
-#include "xfa/fxfa/app/xfa_ffdocview.h"
-#include "xfa/fxfa/app/xfa_ffpageview.h"
 #include "xfa/fxfa/app/xfa_ffwidget.h"
 #include "xfa/fxfa/app/xfa_fwltheme.h"
 #include "xfa/fxfa/app/xfa_textlayout.h"
 #include "xfa/fxgraphics/cfx_color.h"
 #include "xfa/fxgraphics/cfx_path.h"
+#include "xfa/include/fxfa/xfa_ffapp.h"
+#include "xfa/include/fxfa/xfa_ffdoc.h"
+#include "xfa/include/fxfa/xfa_ffdocview.h"
+#include "xfa/include/fxfa/xfa_ffpageview.h"
 
 CXFA_FFField::CXFA_FFField(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc)
     : CXFA_FFWidget(pPageView, pDataAcc), m_pNormalWidget(NULL) {
   m_rtUI.Set(0, 0, 0, 0);
   m_rtCaption.Set(0, 0, 0, 0);
 }
 CXFA_FFField::~CXFA_FFField() {
   CXFA_FFField::UnloadWidget();
 }
 
@@ skipping 796 matching lines @@
       break;
     }
     default: {}
   }
   return FWL_ERR_Succeeded;
 }
 FWL_ERR CXFA_FFField::OnDrawWidget(CFX_Graphics* pGraphics,
                                    const CFX_Matrix* pMatrix) {
   return FWL_ERR_Succeeded;
 }