Merge "Enable background compaction by default"
diff --git a/runtime/parsed_options.cc b/runtime/parsed_options.cc
index 0820330..87106d6 100644
--- a/runtime/parsed_options.cc
+++ b/runtime/parsed_options.cc
@@ -197,7 +197,7 @@
 #endif
   // If background_collector_type_ is kCollectorTypeNone, it defaults to the collector_type_ after
   // parsing options.
-  background_collector_type_ = gc::kCollectorTypeNone;
+  background_collector_type_ = gc::kCollectorTypeSS;
   stack_size_ = 0;  // 0 means default.
   max_spins_before_thin_lock_inflation_ = Monitor::kDefaultMaxSpinsBeforeThinLockInflation;
   low_memory_mode_ = false;