non-new-profile-management creates a "no-op" style account_reconcilor,

components/signin/core/browser/account_reconcilor.cc

Index: components/signin/core/browser/account_reconcilor.cc
diff --git a/components/signin/core/browser/account_reconcilor.cc b/components/signin/core/browser/account_reconcilor.cc
index accb6da262bd74f3075f342c843cf8e85f299eec..154a39386cd311ec972c3852e3abf5e186a3769a 100644
--- a/components/signin/core/browser/account_reconcilor.cc
+++ b/components/signin/core/browser/account_reconcilor.cc
@@ -16,6 +16,7 @@
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_client.h"
 #include "components/signin/core/browser/signin_oauth_helper.h"
+#include "components/signin/core/common/profile_management_switches.h"
 #include "google_apis/gaia/gaia_auth_fetcher.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "google_apis/gaia/gaia_constants.h"
@@ -201,6 +202,7 @@ AccountReconcilor::AccountReconcilor(ProfileOAuth2TokenService* token_service,
       are_gaia_accounts_set_(false),
       requests_(NULL) {
   VLOG(1) << "AccountReconcilor::AccountReconcilor";
+  noop_only_mode_ = !switches::IsNewProfileManagement();
 }
 
 AccountReconcilor::~AccountReconcilor() {
@@ -376,6 +378,8 @@ void AccountReconcilor::GoogleSignedOut(const std::string& username) {
 }
 
 void AccountReconcilor::PerformMergeAction(const std::string& account_id) {
+  if (noop_only_mode_)
+    return;
   VLOG(1) << "AccountReconcilor::PerformMergeAction: " << account_id;
   merge_session_helper_.LogIn(account_id);
 }
@@ -409,6 +413,8 @@ void AccountReconcilor::FinishRemoveAction(
 
 void AccountReconcilor::PerformAddToChromeAction(const std::string& account_id,
                                                  int session_index) {
+  if (noop_only_mode_)
+    return;
   VLOG(1) << "AccountReconcilor::PerformAddToChromeAction:"
           << " account=" << account_id << " session_index=" << session_index;
 
@@ -419,6 +425,8 @@ void AccountReconcilor::PerformAddToChromeAction(const std::string& account_id,
 }
 
 void AccountReconcilor::PerformLogoutAllAccountsAction() {
+  if (noop_only_mode_)
+    return;
   VLOG(1) << "AccountReconcilor::PerformLogoutAllAccountsAction";
   merge_session_helper_.LogOutAllAccounts();
 }