Pdfium: Fix fonts leaking on ClosePage.

core/fxge/include/ifx_renderdevicedriver.h

 // Copyright 2016 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 CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_
 #define CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_
 
 #include "core/fxcrt/include/fx_system.h"
 
 class CFX_DIBitmap;
 class CFX_DIBSource;
 class CFX_Font;
-class CFX_FontCache;
 class CFX_GraphStateData;
 class CFX_Matrix;
 class CFX_PathData;
 class CPDF_ShadingPattern;
 class IFX_Pause;
 struct FXTEXT_CHARPOS;
 struct FX_RECT;
 
 class IFX_RenderDeviceDriver {
  public:
@@ skipping 54 matching lines @@
                               uint32_t color,
                               const CFX_Matrix* pMatrix,
                               uint32_t flags,
                               void*& handle,
                               int blend_type) = 0;
   virtual FX_BOOL ContinueDIBits(void* handle, IFX_Pause* pPause);
   virtual void CancelDIBits(void* handle);
   virtual FX_BOOL DrawDeviceText(int nChars,
                                  const FXTEXT_CHARPOS* pCharPos,
                                  CFX_Font* pFont,
-                                 CFX_FontCache* pCache,
                                  const CFX_Matrix* pObject2Device,
                                  FX_FLOAT font_size,
                                  uint32_t color);
   virtual void* GetPlatformSurface() const;
   virtual int GetDriverType() const;
   virtual void ClearDriver();
   virtual FX_BOOL DrawShading(const CPDF_ShadingPattern* pPattern,
                               const CFX_Matrix* pMatrix,
                               const FX_RECT& clip_rect,
                               int alpha,
                               FX_BOOL bAlphaMode);
   virtual bool SetBitsWithMask(const CFX_DIBSource* pBitmap,
                                const CFX_DIBSource* pMask,
                                int left,
                                int top,
                                int bitmap_alpha,
                                int blend_type);
 };
 
 #endif  // CORE_FXGE_INCLUDE_IFX_RENDERDEVICEDRIVER_H_