I am absolutely certain. Chromium on iOS wraps WebKit and adds some features mentioned in the comments in that file, such as translation. But it's still just a wrapper and the rendering engine is still WebKit, not Blink. If you don't believe me, here is the implementation of CWVWebView where it creates the underlying WKWebView: https://source.chromium.org/chromium/chromium/src/+/main:ios...