Implement querying tabs for auxiliary search

This CL implements collecting tabs information on java side.

Change-Id: I11be9b7a702b1e0d0add195519b28e3217c6d0c8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4544396


Reviewed-by: Tomasz Wiszkowski <ender@google.com>
Commit-Queue: Gang Wu <gangwu@chromium.org>
Code-Coverage: Findit <findit-for-me@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1148135}