[heap] Set progress bar flag for FixedArray upon allocation

src/heap/incremental-marking.cc

Index: src/heap/incremental-marking.cc
diff --git a/src/heap/incremental-marking.cc b/src/heap/incremental-marking.cc
index 5294d1d9c9d1df445b668d0ec3232fe90d628d94..e6f62943612b9e78c6c18d6440cfec853002b96a 100644
--- a/src/heap/incremental-marking.cc
+++ b/src/heap/incremental-marking.cc
@@ -186,12 +186,6 @@ class IncrementalMarkingMarkingVisitor
 
   static void VisitFixedArrayIncremental(Map* map, HeapObject* object) {
     MemoryChunk* chunk = MemoryChunk::FromAddress(object->address());
-    // TODO(mstarzinger): Move setting of the flag to the allocation site of
-    // the array. The visitor should just check the flag.
-    if (FLAG_use_marking_progress_bar &&

[Hannes Payer (out of office), 2016/09/30 10:32:41]

Let's make that a DCHECK.

[Michael Lippautz, 2016/09/30 10:36:14]

Done.

-        chunk->owner()->identity() == LO_SPACE) {
-      chunk->SetFlag(MemoryChunk::HAS_PROGRESS_BAR);
-    }
     if (chunk->IsFlagSet(MemoryChunk::HAS_PROGRESS_BAR)) {
       Heap* heap = map->GetHeap();
       // When using a progress bar for large fixed arrays, scan only a chunk of