diff --git a/fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h b/fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h
index 0215b86..c3e2e99 100644
--- a/fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h
+++ b/fpdfsdk/include/formfiller/FFL_CBA_Fontmap.h
@@ -15,39 +15,31 @@
 class CBA_FontMap : public CPWL_FontMap {
  public:
   CBA_FontMap(CPDFSDK_Annot* pAnnot, IFX_SystemHandler* pSystemHandler);
-  CBA_FontMap(CPDF_Document* pDocument,
-              CPDF_Dictionary* pAnnotDict,
-              IFX_SystemHandler* pSystemHandler);
-
   ~CBA_FontMap() override;
 
-  virtual void Initial(const FX_CHAR* fontname = NULL);
-
- public:
   void SetDefaultFont(CPDF_Font* pFont, const CFX_ByteString& sFontName);
 
   void Reset();
   void SetAPType(const CFX_ByteString& sAPType);
 
- protected:
-  virtual CPDF_Font* FindFontSameCharset(CFX_ByteString& sFontAlias,
-                                         int32_t nCharset);
-  virtual void AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias);
-  virtual CPDF_Document* GetDocument();
-
  private:
+  // CPWL_FontMap:
+  void Initialize() override;
+  CPDF_Document* GetDocument() override;
+  CPDF_Font* FindFontSameCharset(CFX_ByteString& sFontAlias,
+                                 int32_t nCharset) override;
+  void AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias) override;
+
   CPDF_Font* FindResFontSameCharset(CPDF_Dictionary* pResDict,
                                     CFX_ByteString& sFontAlias,
                                     int32_t nCharset);
   CPDF_Font* GetAnnotDefaultFont(CFX_ByteString& csNameTag);
   void AddFontToAnnotDict(CPDF_Font* pFont, const CFX_ByteString& sAlias);
 
- private:
   CPDF_Document* m_pDocument;
   CPDF_Dictionary* m_pAnnotDict;
   CPDF_Font* m_pDefaultFont;
   CFX_ByteString m_sDefaultFontName;
-
   CFX_ByteString m_sAPType;
 };
 
diff --git a/fpdfsdk/include/pdfwindow/PWL_FontMap.h b/fpdfsdk/include/pdfwindow/PWL_FontMap.h
index c174834..c8c8722 100644
--- a/fpdfsdk/include/pdfwindow/PWL_FontMap.h
+++ b/fpdfsdk/include/pdfwindow/PWL_FontMap.h
@@ -80,10 +80,11 @@
                            uint8_t nCharset);
 
  protected:
-  void Initial(const FX_CHAR* fontname = NULL);
-  CPDF_Document* GetDocument();
-  CPDF_Font* FindFontSameCharset(CFX_ByteString& sFontAlias, int32_t nCharset);
-  void AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias);
+  virtual void Initialize();
+  virtual CPDF_Document* GetDocument();
+  virtual CPDF_Font* FindFontSameCharset(CFX_ByteString& sFontAlias,
+                                         int32_t nCharset);
+  virtual void AddedFont(CPDF_Font* pFont, const CFX_ByteString& sFontAlias);
 
   FX_BOOL KnowWord(int32_t nFontIndex, FX_WORD word);
 
@@ -126,9 +127,10 @@
                   CPDF_Document* pAttachedDoc);
   ~CPWL_DocFontMap() override;
 
-  virtual CPDF_Document* GetDocument();
-
  private:
+  // CPWL_FontMap:
+  CPDF_Document* GetDocument() override;
+
   CPDF_Document* m_pAttachedDoc;
 };
 
diff --git a/fpdfsdk/src/formfiller/FFL_CBA_Fontmap.cpp b/fpdfsdk/src/formfiller/FFL_CBA_Fontmap.cpp
index dd58180..b08ce35 100644
--- a/fpdfsdk/src/formfiller/FFL_CBA_Fontmap.cpp
+++ b/fpdfsdk/src/formfiller/FFL_CBA_Fontmap.cpp
@@ -18,17 +18,9 @@
 
   m_pDocument = pPage->m_pDocument;
   m_pAnnotDict = pAnnot->GetPDFAnnot()->GetAnnotDict();
+  Initialize();
 }
 
-CBA_FontMap::CBA_FontMap(CPDF_Document* pDocument,
-                         CPDF_Dictionary* pAnnotDict,
-                         IFX_SystemHandler* pSystemHandler)
-    : CPWL_FontMap(pSystemHandler),
-      m_pDocument(pDocument),
-      m_pAnnotDict(pAnnotDict),
-      m_pDefaultFont(NULL),
-      m_sAPType("N") {}
-
 CBA_FontMap::~CBA_FontMap() {}
 
 void CBA_FontMap::Reset() {
@@ -37,7 +29,7 @@
   m_sDefaultFontName = "";
 }
 
-void CBA_FontMap::Initial(const FX_CHAR* fontname) {
+void CBA_FontMap::Initialize() {
   int32_t nCharset = DEFAULT_CHARSET;
 
   if (!m_pDefaultFont) {
@@ -60,7 +52,7 @@
   }
 
   if (nCharset != ANSI_CHARSET)
-    CPWL_FontMap::Initial(fontname);
+    CPWL_FontMap::Initialize();
 }
 
 void CBA_FontMap::SetDefaultFont(CPDF_Font* pFont,
@@ -73,9 +65,6 @@
   m_pDefaultFont = pFont;
   m_sDefaultFontName = sFontName;
 
-  //	if (m_sDefaultFontName.IsEmpty())
-  //		m_sDefaultFontName = pFont->GetFontTypeName();
-
   int32_t nCharset = DEFAULT_CHARSET;
   if (const CFX_SubstFont* pSubstFont = m_pDefaultFont->GetSubstFont())
     nCharset = pSubstFont->m_Charset;
@@ -278,5 +267,5 @@
   m_sAPType = sAPType;
 
   Reset();
-  Initial();
+  Initialize();
 }
diff --git a/fpdfsdk/src/formfiller/FFL_ComboBox.cpp b/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
index 9458a14..9c9384b 100644
--- a/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
+++ b/fpdfsdk/src/formfiller/FFL_ComboBox.cpp
@@ -32,11 +32,8 @@
     cp.dwFlags |= PCBS_ALLOWCUSTOMTEXT;
   }
 
-  if (!m_pFontMap) {
+  if (!m_pFontMap)
     m_pFontMap = new CBA_FontMap(m_pWidget, GetSystemHandler());
-    m_pFontMap->Initial();
-  }
-
   cp.pFontMap = m_pFontMap;
   cp.pFocusHandler = this;
 
diff --git a/fpdfsdk/src/formfiller/FFL_ListBox.cpp b/fpdfsdk/src/formfiller/FFL_ListBox.cpp
index d00bfb1..d9244e6 100644
--- a/fpdfsdk/src/formfiller/FFL_ListBox.cpp
+++ b/fpdfsdk/src/formfiller/FFL_ListBox.cpp
@@ -36,10 +36,8 @@
   if (cp.dwFlags & PWS_AUTOFONTSIZE)
     cp.fFontSize = FFL_DEFAULTLISTBOXFONTSIZE;
 
-  if (!m_pFontMap) {
+  if (!m_pFontMap)
     m_pFontMap = new CBA_FontMap(m_pWidget, m_pApp->GetSysHandler());
-    m_pFontMap->Initial();
-  }
   cp.pFontMap = m_pFontMap;
 
   return cp;
diff --git a/fpdfsdk/src/formfiller/FFL_TextField.cpp b/fpdfsdk/src/formfiller/FFL_TextField.cpp
index 2e67ebf..10a1339 100644
--- a/fpdfsdk/src/formfiller/FFL_TextField.cpp
+++ b/fpdfsdk/src/formfiller/FFL_TextField.cpp
@@ -68,10 +68,8 @@
       break;
   }
 
-  if (!m_pFontMap) {
+  if (!m_pFontMap)
     m_pFontMap = new CBA_FontMap(m_pWidget, m_pApp->GetSysHandler());
-    m_pFontMap->Initial();
-  }
   cp.pFontMap = m_pFontMap;
   cp.pFocusHandler = this;
 
diff --git a/fpdfsdk/src/fsdk_baseform.cpp b/fpdfsdk/src/fsdk_baseform.cpp
index 4c6fc4b..faab02a 100644
--- a/fpdfsdk/src/fsdk_baseform.cpp
+++ b/fpdfsdk/src/fsdk_baseform.cpp
@@ -494,10 +494,8 @@
   CPDFSDK_Document* pDoc = m_pInterForm->GetDocument();
   CPDFDoc_Environment* pEnv = pDoc->GetEnv();
 
-  CBA_FontMap FontMap(this, pEnv->GetSysHandler());
-  FontMap.Initial();
-
-  FontMap.SetAPType("N");
+  CBA_FontMap font_map(this, pEnv->GetSysHandler());
+  font_map.SetAPType("N");
 
   CFX_ByteString csAP =
       CPWL_Utils::GetRectFillAppStream(rcWindow, crBackground) +
@@ -505,7 +503,7 @@
                                      crLeftTop, crRightBottom, nBorderStyle,
                                      dsBorder) +
       CPWL_Utils::GetPushButtonAppStream(
-          iconFit.GetFittingBounds() ? rcWindow : rcClient, &FontMap,
+          iconFit.GetFittingBounds() ? rcWindow : rcClient, &font_map,
           pNormalIcon, iconFit, csNormalCaption, crText, fFontSize, nLayout);
 
   WriteAppearance("N", GetRotatedRect(), GetMatrix(), csAP);
@@ -519,14 +517,14 @@
       pRolloverIcon = pNormalIcon;
     }
 
-    FontMap.SetAPType("R");
+    font_map.SetAPType("R");
 
     csAP = CPWL_Utils::GetRectFillAppStream(rcWindow, crBackground) +
            CPWL_Utils::GetBorderAppStream(rcWindow, fBorderWidth, crBorder,
                                           crLeftTop, crRightBottom,
                                           nBorderStyle, dsBorder) +
            CPWL_Utils::GetPushButtonAppStream(
-               iconFit.GetFittingBounds() ? rcWindow : rcClient, &FontMap,
+               iconFit.GetFittingBounds() ? rcWindow : rcClient, &font_map,
                pRolloverIcon, iconFit, csRolloverCaption, crText, fFontSize,
                nLayout);
 
@@ -551,7 +549,7 @@
         break;
     }
 
-    FontMap.SetAPType("D");
+    font_map.SetAPType("D");
 
     csAP = CPWL_Utils::GetRectFillAppStream(
                rcWindow, CPWL_Utils::SubstractColor(crBackground, 0.25f)) +
@@ -559,7 +557,7 @@
                                           crLeftTop, crRightBottom,
                                           nBorderStyle, dsBorder) +
            CPWL_Utils::GetPushButtonAppStream(
-               iconFit.GetFittingBounds() ? rcWindow : rcClient, &FontMap,
+               iconFit.GetFittingBounds() ? rcWindow : rcClient, &font_map,
                pDownIcon, iconFit, csDownCaption, crText, fFontSize, nLayout);
 
     WriteAppearance("D", GetRotatedRect(), GetMatrix(), csAP);
@@ -875,9 +873,8 @@
 
     CPDFSDK_Document* pDoc = m_pInterForm->GetDocument();
     CPDFDoc_Environment* pEnv = pDoc->GetEnv();
-    CBA_FontMap FontMap(this, pEnv->GetSysHandler());
-    FontMap.Initial();
-    pEdit->SetFontMap(&FontMap);
+    CBA_FontMap font_map(this, pEnv->GetSysHandler());
+    pEdit->SetFontMap(&font_map);
 
     CPDF_Rect rcEdit = rcClient;
     rcEdit.right = rcButton.left;
@@ -947,9 +944,8 @@
     CPDFSDK_Document* pDoc = m_pInterForm->GetDocument();
     CPDFDoc_Environment* pEnv = pDoc->GetEnv();
 
-    CBA_FontMap FontMap(this, pEnv->GetSysHandler());
-    FontMap.Initial();
-    pEdit->SetFontMap(&FontMap);
+    CBA_FontMap font_map(this, pEnv->GetSysHandler());
+    pEdit->SetFontMap(&font_map);
 
     pEdit->SetPlateRect(CPDF_Rect(rcClient.left, 0.0f, rcClient.right, 0.0f));
 
@@ -1035,9 +1031,8 @@
     CPDFSDK_Document* pDoc = m_pInterForm->GetDocument();
     CPDFDoc_Environment* pEnv = pDoc->GetEnv();
 
-    CBA_FontMap FontMap(this, pEnv->GetSysHandler());
-    FontMap.Initial();
-    pEdit->SetFontMap(&FontMap);
+    CBA_FontMap font_map(this, pEnv->GetSysHandler());
+    pEdit->SetFontMap(&font_map);
 
     CPDF_Rect rcClient = GetClientRect();
     pEdit->SetPlateRect(rcClient);
@@ -1068,8 +1063,8 @@
         pEdit->SetCharArray(nMaxLen);
 
         if (IsFloatZero(fFontSize)) {
-          fFontSize = CPWL_Edit::GetCharArrayAutoFontSize(FontMap.GetPDFFont(0),
-                                                          rcClient, nMaxLen);
+          fFontSize = CPWL_Edit::GetCharArrayAutoFontSize(
+              font_map.GetPDFFont(0), rcClient, nMaxLen);
         }
       } else {
         if (sValue)
diff --git a/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp b/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp
index d5ca376..fadea90 100644
--- a/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp
+++ b/fpdfsdk/src/pdfwindow/PWL_FontMap.cpp
@@ -151,13 +151,8 @@
   }
 }
 
-void CPWL_FontMap::Initial(const FX_CHAR* fontname) {
-  CFX_ByteString sFontName = fontname;
-
-  if (sFontName.IsEmpty())
-    sFontName = DEFAULT_FONT_NAME;
-
-  GetFontIndex(sFontName, ANSI_CHARSET, FALSE);
+void CPWL_FontMap::Initialize() {
+  GetFontIndex(DEFAULT_FONT_NAME, ANSI_CHARSET, FALSE);
 }
 
 /*