Uses and returns the fractional width in text eliding

ui/gfx/platform_font_win.cc

Index: ui/gfx/platform_font_win.cc
diff --git a/ui/gfx/platform_font_win.cc b/ui/gfx/platform_font_win.cc
index a97da2eedcf1ad9e2ecafb5e748a1bb33675b3a6..745f35bd679eee45ad191e67bd47fb5174d7b816 100644
--- a/ui/gfx/platform_font_win.cc
+++ b/ui/gfx/platform_font_win.cc
@@ -145,18 +145,18 @@ int PlatformFontWin::GetCapHeight() const {
   return font_ref_->cap_height();
 }
 
-int PlatformFontWin::GetAverageCharacterWidth() const {
+float PlatformFontWin::GetAverageCharacterWidth() const {
   return font_ref_->ave_char_width();
 }
 
-int PlatformFontWin::GetStringWidth(const base::string16& text) const {
+float PlatformFontWin::GetStringWidth(const base::string16& text) const {
   return Canvas::GetStringWidth(text,
                                 Font(const_cast<PlatformFontWin*>(this)));
 }
 
-int PlatformFontWin::GetExpectedTextWidth(int length) const {
-  return length * std::min(font_ref_->GetDluBaseX(),
-                           GetAverageCharacterWidth());
+float PlatformFontWin::GetExpectedTextWidth(int length) const {
+  return length * std::min<float>(font_ref_->GetDluBaseX(),
+                                  GetAverageCharacterWidth());
 }
 
 int PlatformFontWin::GetStyle() const {