The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ed9ddcaef93429474b18266245e9662cb375cb0b

commit ed9ddcaef93429474b18266245e9662cb375cb0b
Author: Vadym Doroshenko <dvadym@chromium.org>
Date: Thu Jul 19 17:05:31 2018

Adding renderer ids to Password Manager logs.

Form and input elements unique renderer ids are getting more and more
used in Password Manager. This CL adds logging them to
chrome://password-manager-internals.

Some examples how it looks like in logs:
Form:
  Form renderer id: 0
Field:
  email: type=email, renderer_id = 2, visible, empty

Username/password element in PasswordForm
  Username element renderer id : 18

Also this CL adds logging of PasswordForm.confirmation_password_element.

Bug: 865413
Change-Id: Ia0e626a3c8b14679578addd88e9ec3f0911da150
Reviewed-on: https://chromium-review.googlesource.com/1143400
Commit-Queue: Vadym Doroshenko <dvadym@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576532}
[modify] https://crrev.com/ed9ddcaef93429474b18266245e9662cb375cb0b/components/autofill/content/renderer/renderer_save_password_progress_logger.cc
[modify] https://crrev.com/ed9ddcaef93429474b18266245e9662cb375cb0b/components/autofill/core/common/save_password_progress_logger.cc
[modify] https://crrev.com/ed9ddcaef93429474b18266245e9662cb375cb0b/components/autofill/core/common/save_password_progress_logger.h
[modify] https://crrev.com/ed9ddcaef93429474b18266245e9662cb375cb0b/components/password_manager/core/browser/browser_save_password_progress_logger.cc
[modify] https://crrev.com/ed9ddcaef93429474b18266245e9662cb375cb0b/components/password_manager/core/browser/browser_save_password_progress_logger_unittest.cc