[heap] MemoryChunk cleanup

src/heap/spaces.cc

Index: src/heap/spaces.cc
diff --git a/src/heap/spaces.cc b/src/heap/spaces.cc
index 95d5687a8fa4010fa6523c04d0e34018cc396639..a45aac2c32138dcbb23f4a2095918dea5a31c59c 100644
--- a/src/heap/spaces.cc
+++ b/src/heap/spaces.cc
@@ -505,7 +505,7 @@ MemoryChunk* MemoryChunk::Initialize(Heap* heap, Address base, size_t size,
   chunk->size_ = size;
   chunk->area_start_ = area_start;
   chunk->area_end_ = area_end;
-  chunk->flags_ = 0;
+  chunk->flags_ = Flags(NO_FLAGS);
   chunk->set_owner(owner);
   chunk->InitializeReservedMemory();
   chunk->old_to_new_slots_ = nullptr;
@@ -528,7 +528,6 @@ MemoryChunk* MemoryChunk::Initialize(Heap* heap, Address base, size_t size,
   chunk->black_area_end_marker_map_ = nullptr;
 
   DCHECK(OFFSET_OF(MemoryChunk, flags_) == kFlagsOffset);
-  DCHECK(OFFSET_OF(MemoryChunk, live_byte_count_) == kLiveBytesOffset);
 
   if (executable == EXECUTABLE) {
     chunk->SetFlag(IS_EXECUTABLE);