[Autofill] Ensure ShowAutofillPopup logs failure attempts properly.

Currently, if ShowAutofillPopup eventually succeeds on a subsequent
attempt, the previous failure attempt logs are swallowed.

This CL ensures that all iteration attempts are gathered and displayed,
and that details from those failed iterations calls are bubbled up.

Bug: 331788096
Change-Id: Iaf6c57a5d491b0569ace2e80846dcf6d680fce4c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5422268


Commit-Queue: Ian Struiksma <ianstruiksma@google.com>
Reviewed-by: Christoph Schwering <schwering@google.com>
Cr-Commit-Position: refs/heads/main@{#1282608}