I'd only just posted that the only organisations I see being able to sustain a divergent development effort which could match Google might come from China.
And I don't see that as necessarily, or even at all, benign.
>>msoad+(OP)
They do have one for their own use. It's called X5 engine; developed by tencent. It is also used in one of the browser that mainly used in China (To be honest, it actually done much better than safari, I seldom need to handle issue specific to it except some missing API. Apple just choose to ignore)