Implement Invalidator::Acknowledge

chrome/browser/sync/profile_sync_service.cc

Index: chrome/browser/sync/profile_sync_service.cc
diff --git a/chrome/browser/sync/profile_sync_service.cc b/chrome/browser/sync/profile_sync_service.cc
index 64b94227ff2559ad1d81bc27141055876d4c37ac..6a54a4dc4e08ad6926137fc690355412a4138ec2 100644
--- a/chrome/browser/sync/profile_sync_service.cc
+++ b/chrome/browser/sync/profile_sync_service.cc
@@ -476,6 +476,14 @@ void ProfileSyncService::UnregisterInvalidationHandler(
   invalidator_registrar_->UnregisterHandler(handler);
 }
 
+void ProfileSyncService::AcknowledgeInvalidation(
+    const invalidation::ObjectId& id,
+    const syncer::AckHandle& ack_handle) {
+  // TODO(dcheng): This DCHECK is probably wrong.
+  DCHECK(backend_.get());

[akalin, 2012/10/19 13:27:16]

you might have to check for backend_ and stash away the acks until it gets
initialized

[dcheng, 2012/10/19 19:38:11]

Done.

+  backend_->AcknowledgeInvalidation(id, ack_handle);
+}
+
 syncer::InvalidatorState ProfileSyncService::GetInvalidatorState() const {
   return invalidator_registrar_->GetInvalidatorState();
 }