Uses and returns the fractional width in text eliding

ui/gfx/text_utils.h

Index: ui/gfx/text_utils.h
diff --git a/ui/gfx/text_utils.h b/ui/gfx/text_utils.h
index fa5caef2db6f0a879f4cd3e45c1d753d197de820..d221c9cfcc1a7b18c27230c282e2fbcdde16a14b 100644
--- a/ui/gfx/text_utils.h
+++ b/ui/gfx/text_utils.h
@@ -27,6 +27,12 @@ GFX_EXPORT base::string16 RemoveAcceleratorChar(const base::string16& s,
 GFX_EXPORT int GetStringWidth(const base::string16& text,
                               const FontList& font_list);
 
+// Returns the pixel width needed to display the specified |text| with
+//|font_list|. Note that the fractional width might be returned on some

[Alexei Svitkine (slow), 2013/10/07 23:33:28]

Maybe mention explicitly which ones like the render_text.h comment.

[jianli, 2013/10/08 00:01:18]

Done.

+// platforms.
+GFX_EXPORT float GetStringWidthF(const base::string16& text,
+                                 const FontList& font_list);
+
 }  // namespace gfx
 
 #endif  // UI_GFX_TEXT_UTILS_H_