Make methods in AccountsMutatorImpl NOTREACHED on Chrome OS

On Chrome OS we should not change accounts using AccountsMutatorImpl.
All methods except UpdateAccountInfo should be NOTREACHED.

Bug: 1068240
Change-Id: Ib25550b82e8b81d7b58c0995a6809e148c4e3b33
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2317351
Commit-Queue: Anastasiia N <anastasiian@chromium.org>
Reviewed-by: David Roger <droger@chromium.org>
Reviewed-by: Kush Sinha <sinhak@chromium.org>
Cr-Commit-Position: refs/heads/master@{#792415}

chrome/browser/chromeos/arc/auth/arc_auth_service_browsertest.cc

@@ -836,9 +836,8 @@ IN_PROC_BROWSER_TEST_P(ArcAuthServiceTest, AccountRemovalsArePropagated) {
   // be sent.
   EnableRemovalOfExtendedAccountInfo();
 
-  identity_manager->GetAccountsMutator()->RemoveAccount(
-      maybe_account_info.value().account_id,
-      signin_metrics::SourceForRefreshTokenOperation::kUnknown);
+  signin::RemoveRefreshTokenForAccount(identity_manager,
+                                       maybe_account_info.value().account_id);
   base::RunLoop().RunUntilIdle();
 
   EXPECT_EQ(1, auth_instance().num_account_removed_calls());

chrome/browser/safe_browsing/advanced_protection_status_manager_unittest.cc

@@ -329,9 +329,7 @@ TEST_F(AdvancedProtectionStatusManagerTest, AccountRemoval) {
   // This call is necessary to ensure that the account removal is fully
   // processed in this testing context.
   identity_test_env_.EnableRemovalOfExtendedAccountInfo();
-  identity_test_env_.identity_manager()->GetAccountsMutator()->RemoveAccount(
-      account_id,
-      signin_metrics::SourceForRefreshTokenOperation::kUserMenu_RemoveAccount);
+  identity_test_env_.RemoveRefreshTokenForAccount(account_id);
   EXPECT_FALSE(aps_manager.IsUnderAdvancedProtection());
   EXPECT_TRUE(
       pref_service_.HasPrefPath(prefs::kAdvancedProtectionLastRefreshInUs));

components/signin/internal/identity_manager/accounts_mutator_impl.cc

@@ -42,6 +42,9 @@ CoreAccountId AccountsMutatorImpl::AddOrUpdateAccount(
     const std::string& refresh_token,
     bool is_under_advanced_protection,
     signin_metrics::SourceForRefreshTokenOperation source) {
+#if defined(OS_CHROMEOS)
+  NOTREACHED();
+#endif
   CoreAccountId account_id =
       account_tracker_service_->SeedAccountInfo(gaia_id, email);
   account_tracker_service_->SetIsAdvancedProtectionAccount(
@@ -75,16 +78,25 @@ void AccountsMutatorImpl::UpdateAccountInfo(
 void AccountsMutatorImpl::RemoveAccount(
     const CoreAccountId& account_id,
     signin_metrics::SourceForRefreshTokenOperation source) {
+#if defined(OS_CHROMEOS)
+  NOTREACHED();
+#endif
   token_service_->RevokeCredentials(account_id, source);
 }
 
 void AccountsMutatorImpl::RemoveAllAccounts(
     signin_metrics::SourceForRefreshTokenOperation source) {
+#if defined(OS_CHROMEOS)
+  NOTREACHED();
+#endif
   token_service_->RevokeAllCredentials(source);
 }
 
 void AccountsMutatorImpl::InvalidateRefreshTokenForPrimaryAccount(
     signin_metrics::SourceForRefreshTokenOperation source) {
+#if defined(OS_CHROMEOS)
+  NOTREACHED();
+#endif
   DCHECK(primary_account_manager_->IsAuthenticated());
   CoreAccountInfo primary_account_info =
       primary_account_manager_->GetAuthenticatedAccountInfo();