Uses and returns the fractional width in text eliding

ui/views/controls/menu/menu_item_view.cc

 // Copyright (c) 2012 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/views/controls/menu/menu_item_view.h"
 
 #include "base/i18n/case_conversion.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
@@ skipping 958 matching lines @@
     delegate->GetHorizontalIconMargins(command_,
                                        icon_area_width_,
                                        &left_icon_margin_,
                                        &right_icon_margin_);
   } else {
     left_icon_margin_ = 0;
     right_icon_margin_ = 0;
   }
   int label_start = GetLabelStartForThisItem();
 
-  int string_width = font.GetStringWidth(title_);
+  float string_width = font.GetStringWidth(title_);
   if (!subtitle_.empty())
     string_width = std::max(string_width, font.GetStringWidth(subtitle_));
 
-  dimensions.standard_width = string_width + label_start +
-      item_right_margin_;
+  dimensions.standard_width = std::ceil(string_width + label_start +
+      item_right_margin_);
   // Determine the length of the right-side text.
   string16 minor_text = GetMinorText();
   dimensions.minor_text_width =
       minor_text.empty() ? 0 : GetFont().GetStringWidth(minor_text);
 
   // Determine the height to use.
   dimensions.height = std::max(dimensions.height,
       (subtitle_.empty() ? 0 : font.GetHeight()) +
       font.GetHeight() + GetBottomMargin() + GetTopMargin());
   dimensions.height = std::max(dimensions.height,
@@ skipping 66 matching lines @@
     } else {
       const Type& type = menu_item->GetType();
       if (type == CHECKBOX || type == RADIO)
         return true;
     }
   }
   return false;
 }
 
 }  // namespace views