[USS] Move GetAllNodes from backend to controller

components/sync/driver/glue/sync_backend_host_core.h

Index: components/sync/driver/glue/sync_backend_host_core.h
diff --git a/components/sync/driver/glue/sync_backend_host_core.h b/components/sync/driver/glue/sync_backend_host_core.h
index 66c5a762c85b5a8a5e52e4ffa63a24163b8b5134..ac70b2ed45c98717270e1484a1ea69899765b291 100644
--- a/components/sync/driver/glue/sync_backend_host_core.h
+++ b/components/sync/driver/glue/sync_backend_host_core.h
@@ -243,12 +243,6 @@ class SyncBackendHostCore
     return &release_request_context_signal_;
   }
 
-  void GetAllNodesForTypes(
-      syncer::ModelTypeSet types,
-      scoped_refptr<base::SequencedTaskRunner> task_runner,
-      base::Callback<void(const std::vector<syncer::ModelType>& type,
-                          ScopedVector<base::ListValue>)> callback);
-
   // Tell the sync manager to persist its state by writing to disk.
   // Called on the sync thread, both by a timer and, on Android, when the
   // application is backgrounded.