2 files changed, 16 insertions, 0 deletions
diff --git a/chrome/browser/sync/glue/sync_backend_host.cc b/chrome/browser/sync/glue/sync_backend_host.cc
index 15d78cf..73fee4d 100644
--- a/chrome/browser/sync/glue/sync_backend_host.cc
+++ b/chrome/browser/sync/glue/sync_backend_host.cc
@@ -592,6 +592,15 @@ void SyncBackendHost::Core::OnResumed() {
       NewRunnableMethod(this, &Core::NotifyResumed));
 }
 
+void SyncBackendHost::Core::OnStopSyncingPermanently() {
+  host_->frontend_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
+      &Core::HandleStopSyncingPermanentlyOnFrontendLoop));
+}
+
+void SyncBackendHost::Core::HandleStopSyncingPermanentlyOnFrontendLoop() {
+  host_->frontend_->OnStopSyncingPermanently();
+}
+
 void SyncBackendHost::Core::HandleAuthErrorEventOnFrontendLoop(
     const GoogleServiceAuthError& new_auth_error) {
   if (!host_ || !host_->frontend_)
diff --git a/chrome/browser/sync/glue/sync_backend_host.h b/chrome/browser/sync/glue/sync_backend_host.h
index a91d877..41a388a 100644
--- a/chrome/browser/sync/glue/sync_backend_host.h
+++ b/chrome/browser/sync/glue/sync_backend_host.h
@@ -58,6 +58,10 @@ class SyncFrontend {
   // credentials to be provided. See SyncBackendHost::Authenticate for details.
   virtual void OnAuthError() = 0;
 
+  // We are no longer permitted to communicate with the server. Sync should
+  // be disabled and state cleaned up at once.
+  virtual void OnStopSyncingPermanently() = 0;
+
  protected:
   // Don't delete through SyncFrontend interface.
   virtual ~SyncFrontend() {
@@ -230,6 +234,7 @@ class SyncBackendHost : public browser_sync::ModelSafeWorkerRegistrar {
     virtual void OnPassphraseAccepted();
     virtual void OnPaused();
     virtual void OnResumed();
+    virtual void OnStopSyncingPermanently();
 
     struct DoInitializeOptions {
       DoInitializeOptions(
@@ -374,6 +379,8 @@ class SyncBackendHost : public browser_sync::ModelSafeWorkerRegistrar {
     void HandleSyncCycleCompletedOnFrontendLoop(
         sessions::SyncSessionSnapshot* snapshot);
 
+    void HandleStopSyncingPermanentlyOnFrontendLoop();
+
     // Called from Core::OnInitializationComplete to handle updating
     // frontend thread components.
     void HandleInitalizationCompletedOnFrontendLoop();