Yep. Google also offers a lot of "rich cards" in their search (interactive things mostly) that are only available on Chrome .. unless you change the user agent of another browser to Chrome, in which case it also works perfectly.
Ah, but the point was about using "their dominance in web search to undercut competing browser vendors".
In this case, ~90% of web searches go through Google[0]. So they are using the fact that they are the number one web search engine to convince users to switch to Google Chrome.