Make FontList description-parsing public.

ui/gfx/font_list_impl.h

 // Copyright 2014 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_FONT_LIST_IMPL_H_
 #define UI_GFX_FONT_LIST_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 52 matching lines @@
   int GetCapHeight() const;
 
   // Returns the expected number of horizontal pixels needed to display the
   // specified length of characters. Call GetStringWidth() to retrieve the
   // actual number.
   int GetExpectedTextWidth(int length) const;
 
   // Returns the |gfx::Font::FontStyle| style flags for this font list.
   int GetFontStyle() const;
 
-  // Returns a string representing font names, styles, and size. If the
-  // FontListImpl is initialized by a vector of Font, use the first font's style
-  // and size for the description.
-  const std::string& GetFontDescriptionString() const;
-
   // Returns the font size in pixels.
   int GetFontSize() const;
 
   // Returns the Font vector.
   const std::vector<Font>& GetFonts() const;
 
   // Returns the first font in the list.
   const Font& GetPrimaryFont() const;
 
  private:
@@ skipping 12 matching lines @@
   // string, |fonts_| is not initialized during construction. Instead, it is
   // computed lazily when user asked to get the font vector.
   mutable std::vector<Font> fonts_;
 
   // A string representing font names, styles, and sizes.
   // Please refer to the comments before class declaration for details on string
   // format.
   // If FontListImpl is constructed with a vector of font,
   // |font_description_string_| is not initialized during construction. Instead,
   // it is computed lazily when user asked to get the font description string.
+  //
+  // TODO(derat): Remove laziness so that this can be removed.
   mutable std::string font_description_string_;
 
   // The cached common height and baseline of the fonts in the font list.
   mutable int common_height_;
   mutable int common_baseline_;
 
   // Cached font style and size.
   mutable int font_style_;
   mutable int font_size_;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_FONT_LIST_IMPL_H_