Turn a couple functions that always return true to return void.

core/include/fxge/fx_font.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_INCLUDE_FXGE_FX_FONT_H_
 #define CORE_INCLUDE_FXGE_FX_FONT_H_
 
 #include <map>
@@ skipping 42 matching lines @@
 #define FXFONT_FF_ROMAN (1 << 4)
 #define FXFONT_FF_SCRIPT (4 << 4)
 #define FXFONT_FW_NORMAL 400
 #define FXFONT_FW_BOLD 700
 
 class CFX_Font {
  public:
   CFX_Font();
   ~CFX_Font();
 
-  FX_BOOL LoadSubst(const CFX_ByteString& face_name,
-                    FX_BOOL bTrueType,
-                    FX_DWORD flags,
-                    int weight,
-                    int italic_angle,
-                    int CharsetCP,
-                    FX_BOOL bVertical = FALSE);
+  void LoadSubst(const CFX_ByteString& face_name,
+                 FX_BOOL bTrueType,
+                 FX_DWORD flags,
+                 int weight,
+                 int italic_angle,
+                 int CharsetCP,
+                 FX_BOOL bVertical = FALSE);
   FX_BOOL LoadEmbedded(const uint8_t* data, FX_DWORD size);
   FXFT_Face GetFace() const { return m_Face; }
   const CFX_SubstFont* GetSubstFont() const { return m_pSubstFont; }
   CFX_PathData* LoadGlyphPath(FX_DWORD glyph_index, int dest_width = 0);
   int GetGlyphWidth(FX_DWORD glyph_index);
   int GetAscent() const;
   int GetDescent() const;
   FX_BOOL GetGlyphBBox(FX_DWORD glyph_index, FX_RECT& bbox);
   FX_BOOL IsItalic() const;
   FX_BOOL IsBold() const;
@@ skipping 352 matching lines @@
   static IFX_GSUBTable* Create(CFX_Font* pFont);
   virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) = 0;
 
  protected:
   virtual ~IFX_GSUBTable() {}
 };
 
 CFX_ByteString GetNameFromTT(const uint8_t* name_table, FX_DWORD name);
 
 #endif  // CORE_INCLUDE_FXGE_FX_FONT_H_