Implement PasswordStore::GetLoginsForSameOrganizationName.
The method returns all stored credentials with SCHEME_HTTP that have an origin
whose organization-identifying name -- that is, the first domain name label
below the effective TLD -- matches that of a given origin.
For example, the organization-identifying name of "https://foo.example.org" is
`example`, and logins will be returned for "http://bar.example.co.uk", but not
for "http://notexample.com" or "https://example.foo.com".
BUG=
720599
Review-Url:
https://codereview.chromium.org/2899083004
Cr-Commit-Position: refs/heads/master@{#475322}
Committed:
https://chromium.googlesource.com/chromium/src/+/05971b1368780700908f226db1ff99837463abf1