Uses and returns the fractional width in text eliding

ui/gfx/text_utils_skia.cc

 // Copyright 2013 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.
 
 #include "ui/gfx/text_utils.h"
 
 #include "ui/gfx/canvas.h"
 
 namespace gfx {
 
 int GetStringWidth(const base::string16& text, const FontList& font_list) {
   return Canvas::GetStringWidth(text, font_list);
 }
 
+float GetStringWidthF(const base::string16& text, const FontList& font_list) {
+  return Canvas::GetStringWidthF(text, font_list);
+}
+
 }  // namespace gfx