[USS] Move GetAllNodes from backend to controller

components/sync/driver/glue/sync_backend_host_core.cc

Index: components/sync/driver/glue/sync_backend_host_core.cc
diff --git a/components/sync/driver/glue/sync_backend_host_core.cc b/components/sync/driver/glue/sync_backend_host_core.cc
index b425d002499bf96f3958dcde56764d62bc63f0d6..e41cb945dba8f480737cc5e96a5faf828905f238 100644
--- a/components/sync/driver/glue/sync_backend_host_core.cc
+++ b/components/sync/driver/glue/sync_backend_host_core.cc
@@ -664,32 +664,6 @@ void SyncBackendHostCore::DeleteSyncDataFolder() {
   }
 }
 
-void SyncBackendHostCore::GetAllNodesForTypes(
-    syncer::ModelTypeSet types,
-    scoped_refptr<base::SequencedTaskRunner> task_runner,
-    base::Callback<void(const std::vector<syncer::ModelType>& type,
-                        ScopedVector<base::ListValue>)> callback) {
-  std::vector<syncer::ModelType> types_vector;
-  ScopedVector<base::ListValue> node_lists;
-
-  syncer::ModelSafeRoutingInfo routes;
-  registrar_->GetModelSafeRoutingInfo(&routes);
-  syncer::ModelTypeSet enabled_types = GetRoutingInfoTypes(routes);
-
-  for (syncer::ModelTypeSet::Iterator it = types.First(); it.Good(); it.Inc()) {
-    types_vector.push_back(it.Get());
-    if (!enabled_types.Has(it.Get())) {
-      node_lists.push_back(new base::ListValue());
-    } else {
-      node_lists.push_back(
-          sync_manager_->GetAllNodesForType(it.Get()).release());
-    }
-  }
-
-  task_runner->PostTask(
-      FROM_HERE, base::Bind(callback, types_vector, base::Passed(&node_lists)));
-}
-
 void SyncBackendHostCore::StartSavingChanges() {
   // We may already be shut down.
   if (!sync_loop_)