In the latest release of Chrome for Windows released to developers included is a way to sandbox Adobe’s Flash player. Sandboxing, the process of isolation and containment of untrusted executable code, and is an important tool in securing your browser.
The new sandboxing feature is only currently available for Windows and is rolling out to all Chrome Dev installations on Windows automatically. The implementation of the Flash sandbox is a significant first step in reducing the power of potential attacks within the Chrome browser and protecting users against common malware.
You can read more about the release on the Chromium Blog