GitLab

Remove API version 1 of the credentials passing API and rename version 2
to version 1. This renumbering is backwards-incompatible and would break
any existing users of API version 1. However, the API is still under
development and thee are no users yet. Thus, we should take the
opportunity to remove the cruft of an obsolete experimental API version
before we release anything to the public.

BUG=367847
TEST=Updated browser test
TBR=nkostylev

Review URL: https://codereview.chromium.org/276903002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269590 0039d316-1c4b-4281-b951-d872f2087c98