[Android][TouchToFill] Use FindPasswordInfoForElement for triggering

Use for TouchToFill the same triggering logic that is used for regular
suggestions.

Bug: 1010233
Change-Id: I111d4eac4ce94dd94b86097b6b6c98e08875e11a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1834230
Commit-Queue: Boris Sazonov <bsazonov@chromium.org>
Reviewed-by: Vadym Doroshenko <dvadym@chromium.org>
Cr-Commit-Position: refs/heads/master@{#702058}
std::unique_ptr<PasswordForm> PasswordAutofillAgent::GetPasswordFormFromWebForm(
    const WebFormElement& web_form) {
  return CreateSimplifiedPasswordFormFromWebForm(web_form, &field_data_manager_,
                                                 &username_detector_cache_);
}

std::unique_ptr<PasswordForm> PasswordAutofillAgent::GetPasswordFormFromWebForm(
    const WebFormElement& web_form) {
  return CreateSimplifiedPasswordFormFromWebForm(web_form, &field_data_manager_,
                                                 &username_detector_cache_);
}
