Make GetCustomFontRenderParams() pass font style.

ui/gfx/font_render_params.h

Index: ui/gfx/font_render_params.h
diff --git a/ui/gfx/font_render_params.h b/ui/gfx/font_render_params.h
index a6e736bfaacaf0062a368c6dd1e4005712597fa3..1b49e04220d5d594e8ec6f0086c2a6311914de9e 100644
--- a/ui/gfx/font_render_params.h
+++ b/ui/gfx/font_render_params.h
@@ -67,13 +67,13 @@ GFX_EXPORT const FontRenderParams& GetDefaultWebKitFontRenderParams();
 // Returns the appropriate parameters for rendering the font described by the
 // passed-in-arguments, any of which may be NULL. If |family_out| is non-NULL,
 // it will be updated to contain the recommended font family from |family_list|.
-// TODO(derat): Also accept the font style, so that its bold and italic states
-// can be passed to Fontconfig in the Linux implementation.
+// |style| optionally points to a bit field of Font::FontStyle values.
 GFX_EXPORT FontRenderParams GetCustomFontRenderParams(
     bool for_web_contents,
     const std::vector<std::string>* family_list,
     const int* pixel_size,
     const int* point_size,
+    const int* style,
     std::string* family_out);
 
 }  // namespace gfx