Sorry, about Chromium!

[Rassska]

Hi, Taiju Tsuiki!

I want to apologize for this trick, but still have a huge amount of desire to ask you a question about searching panel system in chromium.

Here I wanna know which file/method would be used for exploring this kind of request from user?
Currently, I'm looking for this file, but still have no idea about the exact method which will process requests from users in search panel of history tab.
Thanks a lot for you response, have a good time!