Fix wrong truncation of notification popup messages in ash.

ui/base/text/text_elider.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.
 //
 // This file implements utility functions for eliding and formatting UI text.
 //
 // Note that several of the functions declared in text_elider.h are implemented
 // in this file using helper classes in an unnamed namespace.
 
 #include "ui/base/text/text_elider.h"
@@ skipping 889 matching lines @@
     if (lines_->back().empty() && !last_line_ended_in_lf_)
       lines_->pop_back();
   }
   if (last_line_ended_in_lf_)
     lines_->push_back(string16());
   return full_;
 }
 
 void RectangleText::AddLine(const string16& line) {
   const int line_width = font_.GetStringWidth(line);
-  if (line_width < available_pixel_width_) {
+  if (line_width <= available_pixel_width_) {
     AddToCurrentLineWithWidth(line, line_width);
   } else {
     // Iterate over positions that are valid to break the line at. In general,
     // these are word boundaries but after any punctuation following the word.
     base::i18n::BreakIterator words(line,
                                     base::i18n::BreakIterator::BREAK_LINE);
     if (words.Init()) {
       while (words.Advance()) {
         const bool truncate = !current_line_.empty();
         const string16& word = words.GetString();
@@ skipping 193 matching lines @@
       index = char_iterator.getIndex();
     } else {
       // String has leading whitespace, return the elide string.
       return kElideString;
     }
   }
   return string.substr(0, index) + kElideString;
 }
 
 }  // namespace ui