Change signature of |ui::ElideText()|. Add a truncate mode.

ui/aura_shell/shell_tooltip_manager.cc

 // Copyright (c) 2011 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/aura_shell/shell_tooltip_manager.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/location.h"
@@ skipping 77 matching lines @@
   base::SplitString(*text, '\n', &lines);
   if (lines.size() > kMaxLines)
     lines.resize(kMaxLines);
   *line_count = static_cast<int>(lines.size());
 
   // Format each line to fit.
   gfx::Font font = GetDefaultFont();
   string16 result;
   for (std::vector<string16>::iterator i = lines.begin(); i != lines.end();
        ++i) {
-    string16 elided_text = ui::ElideText(*i, font, available_width, false);
+    string16 elided_text =
+        ui::ElideText(*i, font, available_width, ui::ELIDE_AT_END);
     *max_width = std::max(*max_width, font.GetStringWidth(elided_text));
     if (!result.empty())
       result.push_back('\n');
     result.append(elided_text);
   }
   *text = result;
 }
 
 // Creates a widget of type TYPE_TOOLTIP
 views::Widget* CreateTooltip() {
@@ skipping 178 matching lines @@
       string16 tooltip_text(tooltip_text_);
       gfx::Point widget_loc = curr_mouse_loc_;
       widget_loc = widget_loc.Add(tooltip_window_->GetScreenBounds().origin());
       tooltip_->SetText(tooltip_text, widget_loc);
       tooltip_->Show();
     }
   }
 }
 
 }  // namespace aura_shell