The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ddbeda388dae931edb9a645c67edadb176591501

commit ddbeda388dae931edb9a645c67edadb176591501
Author: Alexander Alekseev <alemate@chromium.org>
Date: Tue Nov 21 10:36:09 2017

Revert "Implement the calls to GAIA for the IDP IFrame protocol."

Remove unused code in gaia_apis.

This reverts commit efc601eba6eb6b7efdaa38d2c49b7d3665e7f9c7.
It was reviewed here: https://codereview.chromium.org/973953002.

Bug: 787260
Change-Id: If8ee0b6b03c8940d81589ceeb5703f39c32aafde
Reviewed-on: https://chromium-review.googlesource.com/780377
Reviewed-by: Mihai Sardarescu <msarda@chromium.org>
Commit-Queue: Alexander Alekseev <alemate@chromium.org>
Cr-Commit-Position: refs/heads/master@{#518206}
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_auth_consumer.h
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_auth_fetcher.cc
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_auth_fetcher.h
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_auth_fetcher_unittest.cc
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_urls.cc
[modify] https://crrev.com/ddbeda388dae931edb9a645c67edadb176591501/google_apis/gaia/gaia_urls.h

alemate@ is there more work to do here?

Yes, basically there is more code to be removed. There were several CLs, and only one could be easily reverted. Other code needs to be removed manually.

This bug has an owner, thus, it's been triaged. Changing status to "assigned".