Chrome sandbox is in simple terms Google's browsers tabs, when you open multiple pages on internet, sandboxing make sure they stay separate . So it's not Chrome itself but pages you have open there that seem to be using your resources.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service