Uses and returns the fractional width in text eliding

ui/views/controls/combobox/combobox.cc

Index: ui/views/controls/combobox/combobox.cc
diff --git a/ui/views/controls/combobox/combobox.cc b/ui/views/controls/combobox/combobox.cc
index a2afe7004be8b490512e075c59115c2fd00feaf7..6aa6e007c6f47cf29dacffc06e5379dee51df868 100644
--- a/ui/views/controls/combobox/combobox.cc
+++ b/ui/views/controls/combobox/combobox.cc
@@ -4,6 +4,8 @@
 
 #include "ui/views/controls/combobox/combobox.h"
 
+#include <cmath>
+
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
@@ -334,7 +336,7 @@ void Combobox::OnModelChanged() {
 }
 
 void Combobox::UpdateFromModel() {
-  int max_width = 0;
+  float max_width = 0;
   const gfx::Font& font = Combobox::GetFont();
 
   MenuItemView* menu = new MenuItemView(this);
@@ -358,7 +360,7 @@ void Combobox::UpdateFromModel() {
     max_width = std::max(max_width, font.GetStringWidth(text));
   }
 
-  content_size_.SetSize(max_width, font.GetHeight());
+  content_size_.SetSize(std::ceil(max_width), font.GetHeight());
 }
 
 void Combobox::AdjustBoundsForRTLUI(gfx::Rect* rect) const {