Fix up extension badge text drawing....

app/gfx/font_skia.cc

 // Copyright (c) 2006-2008 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 "app/gfx/font.h"
 
 #include <gdk/gdk.h>
 #include <map>
 #include <pango/pango.h>
 
@@ skipping 243 matching lines @@
 
 int Font::GetExpectedTextWidth(int length) const {
   double char_width = const_cast<Font*>(this)->avg_width();
   return round(static_cast<float>(length) * char_width);
 }
 
 int Font::style() const {
   return style_;
 }
 
-std::wstring Font::FontName() {
+const std::wstring& Font::FontName() const {
   return font_family_;
 }
 
 int Font::FontSize() {
   return font_size_;
 }
 
 NativeFont Font::nativeFont() const {
   return typeface_;
 }
 
 }  // namespace gfx