Trying to run gclient sync on windows 10.

What steps will reproduce the problem?
(1) Follow steps on https://chromium.googlesource.com/chromium/src/+/master/docs/windows_build_instructions.md
(2) Run gclient sync

What is the expected result?
Sync completes

What happens instead?
Tons of confusing python errors.

Reinstalling depot_tools from the zip archive had no effect.

C:\src\chromium>gclient sync
Syncing projects: 100% (79/79), done.
Running hooks:  42% (23/54) content_shell_fonts
________ running 'download_from_google_storage --no_resume --platform=linux* --extract --no_auth --bucket chromium-fonts -s src/third_party/content_shell_fonts/content_shell_test_fonts.tar.gz.sha1' in 'C:\src\chromium'
The current platform doesn't match "linux*", skipping.
Running hooks:  51% (28/54) syzygy-binaries
________ running 'vpython.bat src/build/get_syzygy_binaries.py --output-dir=src/third_party/syzygy/binaries --revision=190dbfe74c6f5b5913820fa66d9176877924d7c5 --overwrite --copy-dia-binaries' in 'C:\src\chromium'
INFO:get_syzygy_binaries.py:Installing revision 190dbfe74c6f Syzygy binaries.
INFO 1204 15:29:40.736000 oauth2_client.py]
Attempted to retrieve an access token from an invalid refresh token. Two common
cases in which you will see this error are:
1. Your refresh token was revoked.
2. Your refresh token was typed incorrectly.

Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: invalid_grant.
INFO 1204 15:29:46.745000 oauth2_client.py]
Attempted to retrieve an access token from an invalid refresh token. Two common
cases in which you will see this error are:
1. Your refresh token was revoked.
2. Your refresh token was typed incorrectly.

Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: invalid_grant.
INFO 1204 15:29:56.910000 oauth2_client.py]
Attempted to retrieve an access token from an invalid refresh token. Two common
cases in which you will see this error are:
1. Your refresh token was revoked.
2. Your refresh token was typed incorrectly.

Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: invalid_grant.
INFO 1204 15:30:15.110000 oauth2_client.py]
Attempted to retrieve an access token from an invalid refresh token. Two common
cases in which you will see this error are:
1. Your refresh token was revoked.
2. Your refresh token was typed incorrectly.

Your "Oauth 2.0 User Account" credentials are invalid. For more help, see "gsutil help creds", or re-run the gsutil config command (see "gsutil help config").
Failure: invalid_grant.
Traceback (most recent call last):
  File "src/build/get_syzygy_binaries.py", line 529, in <module>
    main()
  File "src/build/get_syzygy_binaries.py", line 522, in main
    state = _InstallBinaries(options, deleted)
  File "src/build/get_syzygy_binaries.py", line 345, in _InstallBinaries
    path = _Download(resource)
  File "src/build/get_syzygy_binaries.py", line 291, in _Download
    _GsUtil('cp', url, tmp_file)
  File "src/build/get_syzygy_binaries.py", line 272, in _GsUtil
    raise RuntimeError('Command "%s" returned %d.' % (cmd, prog.returncode))
RuntimeError: Command "['C:\\Users\\eae\\.vpython-root\\f6065f\\Scripts\\python.exe', 'C:\\src\\depot_tools\\gsutil.py', 'cp', 'gs://syzygy-archive/builds/official/190dbfe74c6f5b5913820fa66d9176877924d7c5/benchmark.zip', 'c:\\users\\eae\\appdata\\local\\temp\\tmpwg5ybasyzygy_archive']" returned 1.
Error: Command 'vpython.bat src/build/get_syzygy_binaries.py --output-dir=src/third_party/syzygy/binaries --revision=190dbfe74c6f5b5913820fa66d9176877924d7c5 --overwrite --copy-dia-binaries' returned non-zero exit status 1 in C:\src\chromium
Hook 'vpython.bat src/build/get_syzygy_binaries.py --output-dir=src/third_party/syzygy/binaries --revision=190dbfe74c6f5b5913820fa66d9176877924d7c5 --overwrite --copy-dia-binaries' took 36.74 secs

Running "gsutil help creds" doesn't work as there is no gsutil command on windows. There is a gsuitil.py script in depot_tools though and running "python.bat C:\src\depot_tools\gsutil.py help creds" shows a lot of information about how oauth works. It also suggest that I might want a service account, and gives the following instructions:

    To create a service account, visit the Google Developers Console and then:
       - Click "APIs & auth" in the left sidebar.
       - Click "Credentials".
       - Click "Create New Client ID".
       - Select "Service Account" as your application type.
       - Save the JSON private key or the .p12 private key and password
         provided.

Of course none of the UI elements references above exist in the developer console. It is also unclear what account it is referring to. Note that I have been able to sync and build on this machine before without trouble.

Please advice.