[heap] Refactor incremental marking step.

src/heap/memory-reducer.cc

Index: src/heap/memory-reducer.cc
diff --git a/src/heap/memory-reducer.cc b/src/heap/memory-reducer.cc
index 699e10e603ee7565de71e5f2784367201cf80092..2d437b1b7d249910a313c3de207481b2a7b22430 100644
--- a/src/heap/memory-reducer.cc
+++ b/src/heap/memory-reducer.cc
@@ -84,10 +84,8 @@ void MemoryReducer::NotifyTimer(const Event& event) {
       double deadline = heap()->MonotonicallyIncreasingTimeInMs() +
                         kIncrementalMarkingDelayMs;
       heap()->incremental_marking()->AdvanceIncrementalMarking(
-          deadline, i::IncrementalMarking::StepActions(
-                        i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
-                        i::IncrementalMarking::FORCE_MARKING,
-                        i::IncrementalMarking::FORCE_COMPLETION));
+          deadline, IncrementalMarking::NO_GC_VIA_STACK_GUARD,
+          IncrementalMarking::FORCE_COMPLETION);
       heap()->FinalizeIncrementalMarkingIfComplete(
           "Memory reducer: finalize incremental marking");
     }