Convert Pass()→std::move() in //content

content/common/font_list_pango.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 "content/common/font_list.h"
 
 #include <pango/pango.h>
 #include <pango/pangocairo.h>
 
 #include <set>
@@ skipping 19 matching lines @@
 
   for (std::set<std::string>::const_iterator iter = sorted_families.begin();
        iter != sorted_families.end(); ++iter) {
     base::ListValue* font_item = new base::ListValue();
     font_item->Append(new base::StringValue(*iter));
     font_item->Append(new base::StringValue(*iter));  // localized name.
     // TODO(yusukes): Support localized family names.
     font_list->Append(font_item);
   }
 
-  return font_list.Pass();
+  return font_list;
 }
 
 }  // namespace content