Uses and returns the fractional width in text eliding

ui/message_center/views/bounded_label.cc

 // Copyright 2013 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/message_center/views/bounded_label.h"
 
 #include <limits>
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 88 matching lines @@
   return (limit < 0 || lines <= limit) ? lines : limit;
 }
 
 gfx::Size InnerBoundedLabel::GetSizeForWidthAndLines(int width, int lines) {
   if (width == 0 || lines == 0)
     return gfx::Size();
   std::pair<int, int> key(width, lines);
   gfx::Size size = GetCachedSize(key);
   if (size.height() == std::numeric_limits<int>::max()) {
     gfx::Insets insets = owner_->GetInsets();
-    int text_width = (width < 0) ? std::numeric_limits<int>::max() :
-                                   std::max(width - insets.width(), 0);
-    int text_height = std::numeric_limits<int>::max();
+    float text_width = (width < 0) ? std::numeric_limits<int>::max() :
+                                     std::max(width - insets.width(), 0);
+    float text_height = std::numeric_limits<int>::max();
     std::vector<string16> wrapped = GetWrappedText(text_width, lines);
     gfx::Canvas::SizeStringInt(JoinString(wrapped, '\n'), font(),
                                &text_width, &text_height,
                                owner_->GetLineHeight(),
                                GetTextFlags());
     size.set_width(text_width + insets.width());
     size.set_height(text_height + insets.height());
     SetCachedSize(key, size);
   }
   return size;
@@ skipping 216 matching lines @@
 
 void BoundedLabel::OnNativeThemeChanged(const ui::NativeTheme* theme) {
   label_->SetNativeTheme(theme);
 }
 
 string16 BoundedLabel::GetWrappedTextForTest(int width, int lines) {
   return JoinString(label_->GetWrappedText(width, lines), '\n');
 }
 
 }  // namespace message_center