Pdfium: Fix fonts leaking on ClosePage.

core/fxge/ifx_renderdevicedriver.cpp

 // 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
 
 #include "core/fxge/include/ifx_renderdevicedriver.h"
 
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxge/include/cfx_pathdata.h"
 #include "core/fxge/include/cfx_renderdevice.h"
 
-class CFX_FontCache;
-
 IFX_RenderDeviceDriver::~IFX_RenderDeviceDriver() {}
 
 CFX_Matrix IFX_RenderDeviceDriver::GetCTM() const {
   return CFX_Matrix();
 }
 
 FX_BOOL IFX_RenderDeviceDriver::StartRendering() {
   return TRUE;
 }
 
@@ skipping 38 matching lines @@
 FX_BOOL IFX_RenderDeviceDriver::ContinueDIBits(void* handle,
                                                IFX_Pause* pPause) {
   return FALSE;
 }
 
 void IFX_RenderDeviceDriver::CancelDIBits(void* handle) {}
 
 FX_BOOL IFX_RenderDeviceDriver::DrawDeviceText(int nChars,
                                                const FXTEXT_CHARPOS* pCharPos,
                                                CFX_Font* pFont,
-                                               CFX_FontCache* pCache,
                                                const CFX_Matrix* pObject2Device,
                                                FX_FLOAT font_size,
                                                uint32_t color) {
   return FALSE;
 }
 
 void* IFX_RenderDeviceDriver::GetPlatformSurface() const {
   return nullptr;
 }
 
@@ skipping 12 matching lines @@
 }
 
 bool IFX_RenderDeviceDriver::SetBitsWithMask(const CFX_DIBSource* pBitmap,
                                              const CFX_DIBSource* pMask,
                                              int left,
                                              int top,
                                              int bitmap_alpha,
                                              int blend_type) {
   return false;
 }