With the favicon display, it's impossible to tell what pages are bookmarked.

We should:

1. check the experiment results to see how the experiment evaluating this feature affected bookmark usage.
  - I checked bookmark provider: bookmark provider usage increased by a relative 10%.
  - However, most pages that are bookmarked are displayed by other providers, not bookmark provider.  We'll need some custom analysis to see how overall use of bookmark suggestions has changed.

2. if bookmark usage dropped, that's a sign that users aren't finding what they want in the dropdown.  We can consider:
  - replacing the favicon of bookmark results with a simple star
  - combining the favicon and the bookmark icon in some way