Collect addl logs in to determine which view 'steals' IME events.

Omnibox appears to occasionally appear defunct, with IME interactions
seemingly broken. Investigation thus far revealed that this takes
place where additional views report focused state even if they are
not in focus.

This change aims at collecting information about which views are
reporting incorrect focused state.

In most cases this should be a no-op. The logic engages only when we
detect that the user taps an already active Omnibox, and subsequently
learn that IME reports that it is Active, but handling another View.

Bug: b:384508488
Change-Id: I30980e572eee22d5876e0140739ae6a6c5a61288
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6217541
Commit-Queue: Tomasz Wiszkowski <ender@google.com>
Reviewed-by: Gang Wu <gangwu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1414429}