Fix an assertion failure in CXFA_FWLTheme::Initialize()

core/include/fxge/fx_font.h

Index: core/include/fxge/fx_font.h
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h
index 954824e728338d18d7ed46f2048eab1b4f732b53..f2db4a1dc026cf551ac63aa5434bf790106cad8e 100644
--- a/core/include/fxge/fx_font.h
+++ b/core/include/fxge/fx_font.h
@@ -325,6 +325,8 @@ class CFX_FontMapper {
                                    int italic_angle);
 #endif  // PDF_ENABLE_XFA
   FX_BOOL IsBuiltinFace(const FXFT_Face face) const;
+  int GetFaceSize() const { return m_FaceArray.GetSize(); }
+  CFX_ByteString GetFaceName(int index) const { return m_FaceArray[index]; }
 
  private:
   static const size_t MM_FACE_COUNT = 2;