Uses and returns the fractional width in text eliding

ash/system/user/tray_user.cc

Index: ash/system/user/tray_user.cc
diff --git a/ash/system/user/tray_user.cc b/ash/system/user/tray_user.cc
index e83272758273f147848c66cb83b11b77f66a634c..e8106c37efa7dcac8f5e552f4ff2ef290e6188c7 100644
--- a/ash/system/user/tray_user.cc
+++ b/ash/system/user/tray_user.cc
@@ -542,7 +542,7 @@ void PublicAccountUserDetails::CalculatePreferredSize(SystemTrayItem* owner,
   int min_width = std::max(
       link_size.width(),
       bubble_view->GetPreferredSize().width() - (used_width + insets.width()));
-  int max_width = std::min(
+  int max_width = std::min<int>(
       font.GetStringWidth(text_) + space_width + link_size.width(),

[sky, 2013/10/01 23:53:03]

Won't this round down? It seems all to easy to accidentally round down this this
change. Is there a way to fix that?

[jianli, 2013/10/02 00:49:20]

Does ash use the fractional width? If not, we should not have round down
problem. Could you please illustrate what kind of problem we could have here?

       bubble_view->GetMaximumSize().width() - (used_width + insets.width()));
   // Do a binary search for the minimum width that ensures no more than three
@@ -555,7 +555,7 @@ void PublicAccountUserDetails::CalculatePreferredSize(SystemTrayItem* owner,
     lines.clear();
     const int width = (min_width + max_width) / 2;
     const bool too_narrow = gfx::ElideRectangleText(
-        text_, font, width, INT_MAX, gfx::TRUNCATE_LONG_WORDS, &lines) != 0;
+        text_, font, width, FLT_MAX, gfx::TRUNCATE_LONG_WORDS, &lines) != 0;
     int line_count = lines.size();
     if (!too_narrow && line_count == 3 &&
             width - font.GetStringWidth(lines.back()) <=
@@ -571,7 +571,7 @@ void PublicAccountUserDetails::CalculatePreferredSize(SystemTrayItem* owner,
   // Calculate the corresponding height and set the preferred size.
   lines.clear();
   gfx::ElideRectangleText(
-      text_, font, min_width, INT_MAX, gfx::TRUNCATE_LONG_WORDS, &lines);
+      text_, font, min_width, FLT_MAX, gfx::TRUNCATE_LONG_WORDS, &lines);
   int line_count = lines.size();
   if (min_width - font.GetStringWidth(lines.back()) <=
       space_width + link_size.width()) {