Uses and returns the fractional width in text eliding

ui/views/controls/combobox/combobox.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/combobox/combobox.h"
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
 #include "ui/base/accessibility/accessible_view_state.h"
@@ skipping 331 matching lines @@
       continue;
     }
 
     string16 text = model()->GetItemAt(i);
 
     // Inserting the Unicode formatting characters if necessary so that the
     // text is displayed correctly in right-to-left UIs.
     base::i18n::AdjustStringForLocaleDirection(&text);
 
     menu->AppendMenuItem(i + kFirstMenuItemId, text, MenuItemView::NORMAL);
-    max_width = std::max(max_width, font.GetStringWidth(text));
+    max_width = std::max<int>(max_width, font.GetStringWidth(text));
   }
 
   content_size_.SetSize(max_width, font.GetHeight());
 }
 
 void Combobox::AdjustBoundsForRTLUI(gfx::Rect* rect) const {
   rect->set_x(GetMirroredXForRect(*rect));
 }
 
 void Combobox::PaintText(gfx::Canvas* canvas) {
@@ skipping 83 matching lines @@
 }
 
 void Combobox::OnSelectionChanged() {
   if (listener_)
     listener_->OnSelectedIndexChanged(this);
   NotifyAccessibilityEvent(ui::AccessibilityTypes::EVENT_VALUE_CHANGED, false);
   SchedulePaint();
 }
 
 }  // namespace views