Remove default argument from RestoreState() methods.

core/fxge/apple/apple_int.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 CORE_FXGE_APPLE_APPLE_INT_H_
 #define CORE_FXGE_APPLE_APPLE_INT_H_
 
 #include "core/fxcrt/include/fx_system.h"
@@ skipping 73 matching lines @@
   CFX_QuartzDeviceDriver(CGContextRef context, int32_t deviceClass);
   ~CFX_QuartzDeviceDriver() override;
 
   // IFX_RenderDeviceDriver
   int GetDeviceCaps(int caps_id) override;
   CFX_Matrix GetCTM() const override;
   FX_BOOL IsPSPrintDriver() override { return FALSE; }
   FX_BOOL StartRendering() override { return TRUE; }
   void EndRendering() override {}
   void SaveState() override;
-  void RestoreState(FX_BOOL bKeepSaved) override;
+  void RestoreState(bool bKeepSaved) override;
   FX_BOOL SetClip_PathFill(const CFX_PathData* pPathData,
                            const CFX_Matrix* pObject2Device,
                            int fill_mode) override;
   FX_BOOL SetClip_PathStroke(const CFX_PathData* pPathData,
                              const CFX_Matrix* pObject2Device,
                              const CFX_GraphStateData* pGraphState) override;
   FX_BOOL DrawPath(const CFX_PathData* pPathData,
                    const CFX_Matrix* pObject2Device,
                    const CFX_GraphStateData* pGraphState,
                    uint32_t fill_color,
@@ skipping 113 matching lines @@
   int32_t m_vertSize;
 };
 
 uint32_t FX_GetHashCode(const FX_CHAR* pStr);
 uint32_t FX_IOSGetMatchFamilyNameHashcode(const FX_CHAR* pFontName);
 uint32_t FX_IOSGetFamilyNamesCount();
 const FX_CHAR* FX_IOSGetFamilyName(uint32_t uIndex);
 #endif
 
 #endif  // CORE_FXGE_APPLE_APPLE_INT_H_