Implement PasswordStore::GetLoginsForSameOrganizationName.

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-Original-Commit-Position: refs/heads/master@{#475322}
Review-Url: https://codereview.chromium.org/2916073002 .
Cr-Commit-Position: refs/branch-heads/3112@{#84}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed: https://chromium.googlesource.com/chromium/src/+/517d0c7a0232d747b6a71f753cfb4c6274549049

[engedy, 2017-06-01 12:33:12]

Description was changed from

==========
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}
(cherry picked from commit 05971b1368780700908f226db1ff99837463abf1)
==========

to

==========
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-Original-Commit-Position: refs/heads/master@{#475322}
Review-Url: https://codereview.chromium.org/2916073002 .
Cr-Commit-Position: refs/branch-heads/3112@{#84}
Cr-Branched-From:
b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
Committed:
https://chromium.googlesource.com/chromium/src/+/517d0c7a0232d747b6a71f753cfb...
==========

[engedy, 2017-06-01 12:33:13]

Committed patchset #1 (id:1) manually as
517d0c7a0232d747b6a71f753cfb4c6274549049.