Mostly for consistency but it would also simplify the V8 code generator which at the moment needs the type of the indexer.
This commit renamed the file: https://github.com/WebKit/WebKit/commit/7e0dcbf9e2072353a85f94d1d0b00221872abcff This is current IDL file: https://github.com/WebKit/WebKit/blob/main/Source/WebCore/css/CSSKeyframesRule.idl This is current Chromium IDL: https://github.com/chromium/chromium/blob/main/third_party/blink/renderer/core/css/css_keyframe_rule.idl rniwa@webkit.org - it seems to be change for pre-Blink for V8, is it needed now? I just gave quick links for reference above. Thanks!
This is won't fix at this point.