Uses and returns the fractional width in text eliding

ui/gfx/font.cc

Index: ui/gfx/font.cc
diff --git a/ui/gfx/font.cc b/ui/gfx/font.cc
index aa4638c7efc3dd2e24aebb86e6c5e72a3c408c97..5da4cb144a8b7284cabeea9e587e3d9fc9572233 100644
--- a/ui/gfx/font.cc
+++ b/ui/gfx/font.cc
@@ -54,15 +54,15 @@ int Font::GetBaseline() const {
   return platform_font_->GetBaseline();
 }
 
-int Font::GetAverageCharacterWidth() const {
+float Font::GetAverageCharacterWidth() const {
   return platform_font_->GetAverageCharacterWidth();
 }
 
-int Font::GetStringWidth(const base::string16& text) const {
+float Font::GetStringWidth(const base::string16& text) const {
   return platform_font_->GetStringWidth(text);
 }
 
-int Font::GetExpectedTextWidth(int length) const {
+float Font::GetExpectedTextWidth(int length) const {
   return platform_font_->GetExpectedTextWidth(length);
 }