GAIA ID migration for Android

components/signin/core/browser/account_tracker_service.cc

Index: components/signin/core/browser/account_tracker_service.cc
diff --git a/components/signin/core/browser/account_tracker_service.cc b/components/signin/core/browser/account_tracker_service.cc
index 5c889241054de155e3000e637059c2725f44b441..59250336be5f8e3441a95696233a8784d760b846 100644
--- a/components/signin/core/browser/account_tracker_service.cc
+++ b/components/signin/core/browser/account_tracker_service.cc
@@ -254,7 +254,7 @@ void AccountTrackerService::SetIsChildAccount(const std::string& account_id,
 }
 
 bool AccountTrackerService::IsMigratable() {
-#if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
+#if !defined(OS_CHROMEOS)
   for (std::map<std::string, AccountState>::const_iterator it =
            accounts_.begin();
        it != accounts_.end(); ++it) {
@@ -501,3 +501,7 @@ void AccountTrackerService::SeedAccountInfo(AccountInfo info) {
     SaveToPrefs(state);
   }
 }
+
+void AccountTrackerService::RemoveAccount(const std::string& account_id) {
+  StopTrackingAccount(account_id);
+}