An unintended result of expanding "low-end device mode" up to 1GB on Android O devices is that GPU and browser processes are now merged, and therefore WebGL is blacklisted because our WebGL crash/hang recovery system depends on the separate GPU process.  So if an Android N 1GB device gets upgraded to Android O, we'd strip away the WebGL feature, and additionally it would significantly decrease support % of WebGL on Android because 1GB devices are very popular.  See  http://crbug.com/689752  and  http://crbug.com/730306  for context.

Aside from potential stability and security problems in pathological cases, WebGL probably works OK on 1GB devices with GPU process merged.  We should double-check common WebGL content works OK on 1GB O devices, and consider changing the blacklist policy.