Fixup incorrect include guards.

xfa/src/fdp/include/fde_rdr.h

 // 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 _FDE_RENDERCONTEXT
-#define _FDE_RENDERCONTEXT
+#ifndef XFA_SRC_FDP_INCLUDE_FDE_RDR_H_
+#define XFA_SRC_FDP_INCLUDE_FDE_RDR_H_
+
 class IFDE_Page;
 class IFDE_RenderDevice;
 
 void FDE_GetPageMatrix(CFX_Matrix& pageMatrix,
                        const CFX_RectF& docPageRect,
                        const CFX_Rect& devicePageRect,
                        int32_t iRotate,
                        FX_DWORD dwCoordinatesType = 0);
 enum FDE_RENDERSTATUS {
   FDE_RENDERSTATUS_Reset = 0,
   FDE_RENDERSTATUS_Paused,
   FDE_RENDERSTATUS_Done,
   FDE_RENDERSTATUS_Failed,
 };
 
 class IFDE_RenderContext {
  public:
   static IFDE_RenderContext* Create();
   virtual ~IFDE_RenderContext() {}
   virtual void Release() = 0;
   virtual FX_BOOL StartRender(IFDE_RenderDevice* pRenderDevice,
                               IFDE_CanvasSet* pCanvasSet,
                               const CFX_Matrix& tmDoc2Device) = 0;
   virtual FDE_RENDERSTATUS GetStatus() const = 0;
   virtual FDE_RENDERSTATUS DoRender(IFX_Pause* pPause = NULL) = 0;
   virtual void StopRender() = 0;
 };
-#endif
+
+#endif  // XFA_SRC_FDP_INCLUDE_FDE_RDR_H_