Remove IFGAS_FontMgr and clean up (the renamed) CFGAS_FontMgr a little.

xfa/fwl/theme/cfwl_widgettp.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 XFA_FWL_THEME_CFWL_WIDGETTP_H_
 #define XFA_FWL_THEME_CFWL_WIDGETTP_H_
 
 #include <memory>
@@ skipping 78 matching lines @@
   WeekNumWidth,
   WeekWidth,
   Width
 };
 
 class CFDE_TextOut;
 class CFGAS_GEFont;
 class CFWL_ThemeBackground;
 class CFWL_ThemePart;
 class CFWL_ThemeText;
-class IFGAS_FontMgr;
+class CFGAS_FontMgr;
 class IFWL_Widget;
 
 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
 class CFX_FontSourceEnum_File;
 #endif
 
 class CFWL_WidgetTP {
  public:
   virtual ~CFWL_WidgetTP();
 
@@ skipping 128 matching lines @@
                 uint16_t wCodePage);
   CFGAS_GEFont* GetFont() const { return m_pFont.get(); }
 
  protected:
   CFX_WideString m_wsFamily;
   uint32_t m_dwStyles;
   uint32_t m_dwCodePage;
 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
   std::unique_ptr<CFX_FontSourceEnum_File> m_pFontSource;
 #endif
-  std::unique_ptr<IFGAS_FontMgr> m_pFontMgr;
+  std::unique_ptr<CFGAS_FontMgr> m_pFontMgr;
   std::unique_ptr<CFGAS_GEFont> m_pFont;
 };
 
 class CFWL_FontManager {
  public:
   static CFWL_FontManager* GetInstance();
   static void DestroyInstance();
 
   CFGAS_GEFont* FindFont(const CFX_WideStringC& wsFontFamily,
                          uint32_t dwFontStyles,
                          uint16_t dwCodePage);
 
  protected:
   CFWL_FontManager();
   virtual ~CFWL_FontManager();
 
   static CFWL_FontManager* s_FontManager;
   std::vector<std::unique_ptr<CFWL_FontData>> m_FontsArray;
 };
 
 #endif  // XFA_FWL_THEME_CFWL_WIDGETTP_H_