Bar de depuración de Symfony
The Symfony debug toolbar is coming from the SymfonyWebProfilerBundle and not directly included in the Debug component.
Also, because it's a bundle, you surely have to make some changes if you want use it as a standalone component (out of symfony).
Maybe look at the Laravel debug toolbar which is not a Symfony2 Bundle and can be easier to a adapt. It is built from the following package.
EDIT
The laravel toolbar is directly coming from maximebf/php-debugba
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