Make use of InvalidationService

sync/notifier/non_blocking_invalidator.cc

Index: sync/notifier/non_blocking_invalidator.cc
diff --git a/sync/notifier/non_blocking_invalidator.cc b/sync/notifier/non_blocking_invalidator.cc
index 99b5532cc6789f028ed6948f7115f2cad884d177..2834f282c12020ca384a7bde6e79cc362a38d569 100644
--- a/sync/notifier/non_blocking_invalidator.cc
+++ b/sync/notifier/non_blocking_invalidator.cc
@@ -227,13 +227,6 @@ void NonBlockingInvalidator::UpdateCredentials(const std::string& email,
   }
 }
 
-void NonBlockingInvalidator::SendInvalidation(
-    const ObjectIdInvalidationMap& invalidation_map) {
-  DCHECK(parent_task_runner_->BelongsToCurrentThread());
-  // InvalidationNotifier doesn't implement SendInvalidation(), so no
-  // need to forward on the call.
-}
-
 void NonBlockingInvalidator::OnInvalidatorStateChange(InvalidatorState state) {
   DCHECK(parent_task_runner_->BelongsToCurrentThread());
   registrar_.UpdateInvalidatorState(state);