From what I understand, it had to do with how fast Apple was upstreaming their changes/patches, a big part of which would require Apple to accept the modificati

From what I understand, it had to do with how fast Apple was upstreaming their changes/patches, a big part of which would require Apple to accept the modifications to Webkit core. https://arstechnica.com/information-technology/2013/04/google-going-its-own-way-forking-webkit-rendering-engine/ https://arstechnica.com/information-technology/2013/04/googl...