Support Android username-only credentials.

components/password_manager/core/browser/password_store.cc

Index: components/password_manager/core/browser/password_store.cc
diff --git a/components/password_manager/core/browser/password_store.cc b/components/password_manager/core/browser/password_store.cc
index 82ff912f523b57f997bff1f222ea78fe0671d8b5..ebbc490b9af773d3291bebd6f1bc969ab38ea5d6 100644
--- a/components/password_manager/core/browser/password_store.cc
+++ b/components/password_manager/core/browser/password_store.cc
@@ -388,6 +388,7 @@ void PasswordStore::GetLoginsWithAffiliationsImpl(
         more_results.begin(), more_results.end(),
         [](PasswordForm* form) { return form->federation_url.is_empty(); });
     more_results.erase(it_first_federated, more_results.end());
+    AffiliatedMatchHelper::TrimAndroidUsernameOnlyCredentials(&more_results);

[engedy, 2015/10/13 12:11:33]

Could you please update test PasswordStoreTest.GetLoginsWithAffiliations with a
username-only entry to have coverage that these are removed?

[vasilii, 2015/10/13 18:05:26]

Done.

     results.insert(results.end(), more_results.begin(), more_results.end());
     more_results.weak_clear();
   }