Google is offering data compression feature on Chrome for select iOS users. As of now, there is no Chrome Beta for iOS, Google is making the feature accessible to a limited number of iOS users. This would allow users to save bandwidth, as it will be using Google proxy servers.
A handful of users get a "You're invited flyer. which clearly says 'Save bandwidth and browse more securely". This would bring significant improvements in form of better voice search and text to speech capabilities and a full screen mode on the iPad.
A new option will be available where you can choose to have links to specific Google services - including Google Maps, YouTube, Google and Google Drive - open in those apps, instead of opening in the browser. Users will also have an option where they can choose to enable the support on an app-by-app basis. Simply put, once you've signed into your Google account via Chrome, you can now sign into other apps with a single tap.
The second addition is the data compression feature, which Google is rolling out to iOS users gradually, which would render faster page loads, save bandwidth, and says Google, "browse more securely."