Google, like Mozilla, maintains multiple Chrome lines and lets users choose which version -- dev, beta or stable -- they want to run.

With the change, Chrome now mimics the behavior of the two-fingered gesture in Safari 5.1, the browser bundled with Lion.

Googles made other Lion-related modifications to Chrome, according to notes on the Chromium bug-tracking database.

As of Tuesdays dev build, for instance, Chromes scrollbars conform to Apples guidelines, and disappear when not in use.

To reduce user confusion, theyve removed the button at the upper-right corner of the app window that triggers full-screen.

What were going to do right now is remove the full-screen button so we dont advertise a behavior that we dont really implement, said one developer on the bug database last week.

The full-screen button does not appear in the dev build released Tuesday, or in the beta version shipped late last week.

Long-term, were going to implement a proper full-screen interface for Lion, the same developer wrote.

In this interface, well also experiment with having a collapsible toolbar.

Until then, full-screen will operate as it does on LeopardSnow Leopard.

Existing copies of Chromes dev build will be updated automatically by Googles silent, in-the-background service.

Users of Chrome 12 or 13 can restore three-fingered page swiping by changing the assigned gesture in Swipe between pages and either unchecking or modifying Swipe between full-screen apps.

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld.

Follow Gregg on Twitter at gkeizer, on Google or subscribe to Greggs RSS feed.

His e-mail address is gkeizercomputerworld.com.

New Chrome For Mac Os 10.7