[Sync] Add cookie jar mismatch logging

components/sync_driver/glue/sync_backend_host_impl.cc

Index: components/sync_driver/glue/sync_backend_host_impl.cc
diff --git a/components/sync_driver/glue/sync_backend_host_impl.cc b/components/sync_driver/glue/sync_backend_host_impl.cc
index 2e73078c631da29a7deb487a7cd535e55003937e..5bf3046420fd77c71e419b8a0b5975c9bb841dd2 100644
--- a/components/sync_driver/glue/sync_backend_host_impl.cc
+++ b/components/sync_driver/glue/sync_backend_host_impl.cc
@@ -853,6 +853,13 @@ void SyncBackendHostImpl::ClearServerData(
                             core_.get(), callback));
 }
 
+void SyncBackendHostImpl::OnCookieJarChanged(bool account_mismatch) {
+  DCHECK(ui_thread_->BelongsToCurrentThread());
+  registrar_->sync_thread()->task_runner()->PostTask(
+      FROM_HERE, base::Bind(&SyncBackendHostCore::DoOnCookieJarChanged,
+                            core_.get(), account_mismatch));
+}
+
 void SyncBackendHostImpl::ClearServerDataDoneOnFrontendLoop(
     const syncer::SyncManager::ClearServerDataCallback& frontend_callback) {
   DCHECK(ui_thread_->BelongsToCurrentThread());