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 6e36fc631b7d6b7ad4017dd86fe79a1646ec8c8f..7acbc6e1766edbdba131f7f63c943e4741429b73 100644
--- a/components/signin/core/browser/account_tracker_service.cc
+++ b/components/signin/core/browser/account_tracker_service.cc
@@ -266,7 +266,7 @@ void AccountTrackerService::SetIsChildAccount(const std::string& account_id,
 }
 
 bool AccountTrackerService::IsMigratable() {
-#if !defined(OS_IOS) && !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
+#if !defined(OS_IOS) && !defined(OS_CHROMEOS)
   for (std::map<std::string, AccountState>::const_iterator it =
            accounts_.begin();
        it != accounts_.end(); ++it) {
@@ -514,3 +514,7 @@ void AccountTrackerService::SeedAccountInfo(
     SaveToPrefs(state);
   }
 }
+
+void AccountTrackerService::RemoveAccount(const std::string& account_id) {
+  StopTrackingAccount(account_id);
+}