PlatformFontWin::DeriveFontWithHeight insensitive to base font's height

ui/gfx/platform_font_win.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GFX_PLATFORM_FONT_WIN_H_
 #define UI_GFX_PLATFORM_FONT_WIN_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 124 matching lines @@
   void InitWithFontNameAndSize(const std::string& font_name,
                                int font_size);
 
   // Returns the base font ref. This should ONLY be invoked on the
   // UI thread.
   static HFontRef* GetBaseFontRef();
 
   // Creates and returns a new HFONTRef from the specified HFONT.
   static HFontRef* CreateHFontRef(HFONT font);
 
+  // Creates and returns a new HFONTRef from the specified HFONT. Uses provided
+  // |font_metrics| instead of calculating new one.
+  static HFontRef* CreateHFontRef(HFONT font, const TEXTMETRIC& font_metrics);
+
+  // Returns a largest derived Font whose height does not exceed the height of
+  // |base_font|.
+  static Font DeriveWithCorrectedSize(HFONT base_font);
+
   // Creates a new PlatformFontWin with the specified HFontRef. Used when
   // constructing a Font from a HFONT we don't want to copy.
   explicit PlatformFontWin(HFontRef* hfont_ref);
 
     // Reference to the base font all fonts are derived from.
   static HFontRef* base_font_ref_;
 
   // Indirect reference to the HFontRef, which references the underlying HFONT.
   scoped_refptr<HFontRef> font_ref_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformFontWin);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_PLATFORM_FONT_WIN_H_