Files
sdk/pkg/shadow_dom/tool

How to build shadow_dom package:

- Install nodejs and npm
     sudo apt-get install nodejs
     sudo apt-get install npm
- Install grunt http://gruntjs.com/getting-started

- Change to the shadow_dom tool directory
     cd pkg/shadow_dom/tool

- Install project dependencies
     npm install

- Run grunt to generate the shadow_dom packages in pkg/shadow_dom/lib
     grunt