The company is now making the function available in version 46 of Chrome for Android. It's enabled by default but if you don't want to use it, you can disable it under Chrome Settings, Privacy. Note that if you use Chrome's Data Saver function, you will be using Safe Browsing because it is integrated with the Data Saver that compresses information from the web before serving it up on your phone or tablet. Data
Google explains that it made the software "extra stingy with memory and processor use, and careful about minimizing network traffic."