... and come to think of it, if this does make it into Chrome (and why wouldn't it, really? WebView is just another brand name for Android Chrome) it's going to be difficult to stop any random website using it to refuse service for things that have nothing to do with the intended use case of preventing "media playback" simply by adding some otherwise irrelevant embedded media to any web page and refusing to operate if it doesn't load. Any site that wants to will be able to verify that you don't have unauthorized browser extensions, just like the original "Web Environment Integrity."

They have simply taken "Web Environment Integrity", changed its name to "Webview Media Integrity", and launched a massive press campaign to fool half the world into thinking it's not exactly the same damn thing.