[heap] Remove unused step_size_in_bytes in AdvanceIncrementalMarking.

src/heap/incremental-marking-job.cc

Index: src/heap/incremental-marking-job.cc
diff --git a/src/heap/incremental-marking-job.cc b/src/heap/incremental-marking-job.cc
index f07d8b1a0253dceed3329b9131adb9d5fe8b19a0..3ccbec23d6c6369f239a8941fdec48ff9e7f707f 100644
--- a/src/heap/incremental-marking-job.cc
+++ b/src/heap/incremental-marking-job.cc
@@ -83,7 +83,7 @@ IncrementalMarkingJob::IdleTask::Progress IncrementalMarkingJob::IdleTask::Step(
   }
   const double remaining_idle_time_in_ms =
       incremental_marking->AdvanceIncrementalMarking(
-          0, deadline_in_ms, IncrementalMarking::IdleStepActions());
+          deadline_in_ms, IncrementalMarking::IdleStepActions());
   if (remaining_idle_time_in_ms > 0.0) {
     heap->TryFinalizeIdleIncrementalMarking(remaining_idle_time_in_ms);
   }
@@ -121,10 +121,10 @@ void IncrementalMarkingJob::DelayedTask::Step(Heap* heap) {
   double deadline =
       heap->MonotonicallyIncreasingTimeInMs() + kIncrementalMarkingDelayMs;
   heap->incremental_marking()->AdvanceIncrementalMarking(
-      0, deadline, i::IncrementalMarking::StepActions(
-                       i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
-                       i::IncrementalMarking::FORCE_MARKING,
-                       i::IncrementalMarking::FORCE_COMPLETION));
+      deadline, i::IncrementalMarking::StepActions(
+                    i::IncrementalMarking::NO_GC_VIA_STACK_GUARD,
+                    i::IncrementalMarking::FORCE_MARKING,
+                    i::IncrementalMarking::FORCE_COMPLETION));
   heap->FinalizeIncrementalMarkingIfComplete(
       "Incremental marking task: finalize incremental marking");
 }