Uses and returns the fractional width in text eliding

ui/views/corewm/tooltip_controller_unittest.cc

 // Copyright (c) 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/views/corewm/tooltip_controller.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/client/tooltip_client.h"
 #include "ui/aura/client/window_types.h"
@@ skipping 278 matching lines @@
   EXPECT_EQ(1, line_count);
   EXPECT_EQ(ASCIIToUTF16("Small Tooltip"), tooltip);
 
   // Normal small multi-line tooltip should stay as is.
   tooltip.clear();
   width = line_count = -1;
   tooltip = ASCIIToUTF16("Multi line\nTooltip");
   TooltipControllerTestHelper::TrimTooltipToFit(
       max_width, &tooltip, &width, &line_count);
   int expected_width = font.GetStringWidth(ASCIIToUTF16("Multi line"));
-  expected_width = std::max(expected_width,
-                            font.GetStringWidth(ASCIIToUTF16("Tooltip")));
+  expected_width = std::max<int>(expected_width,
+                                 font.GetStringWidth(ASCIIToUTF16("Tooltip")));
   EXPECT_EQ(expected_width, width);
   EXPECT_EQ(2, line_count);
   EXPECT_EQ(ASCIIToUTF16("Multi line\nTooltip"), tooltip);
 
   // Whitespaces in tooltips are preserved.
   tooltip.clear();
   width = line_count = -1;
   tooltip = ASCIIToUTF16("Small  Tool  t\tip");
   TooltipControllerTestHelper::TrimTooltipToFit(
       max_width, &tooltip, &width, &line_count);
@@ skipping 227 matching lines @@
   EXPECT_EQ(
       widget_->GetNativeWindow()->GetRootWindow()->children().back()->type(),
       aura::client::WINDOW_TYPE_TOOLTIP);
 }
 
 #endif
 
 }  // namespace test
 }  // namespace corewm
 }  // namespace views