[heap] Implement simple concurrent marking deque.

src/heap/heap.cc

Index: src/heap/heap.cc
diff --git a/src/heap/heap.cc b/src/heap/heap.cc
index 862ee0cc1aea7648c49ef397681fb2c9af491025..a2c66d852da8b70ea3900cc19d6df0d690217527 100644
--- a/src/heap/heap.cc
+++ b/src/heap/heap.cc
@@ -22,6 +22,7 @@
 #include "src/global-handles.h"
 #include "src/heap/array-buffer-tracker-inl.h"
 #include "src/heap/code-stats.h"
+#include "src/heap/concurrent-marking-deque.h"
 #include "src/heap/concurrent-marking.h"
 #include "src/heap/embedder-tracing.h"
 #include "src/heap/gc-idle-time-handler.h"
@@ -5518,7 +5519,6 @@ bool Heap::SetUp() {
 
   incremental_marking_ = new IncrementalMarking(this);
 
-  concurrent_marking_ = new ConcurrentMarking(this);
 
   for (int i = 0; i <= LAST_SPACE; i++) {
     space_[i] = nullptr;
@@ -5565,6 +5565,8 @@ bool Heap::SetUp() {
   tracer_ = new GCTracer(this);
   scavenge_collector_ = new Scavenger(this);
   mark_compact_collector_ = new MarkCompactCollector(this);
+  concurrent_marking_ =
+      new ConcurrentMarking(this, mark_compact_collector_->marking_deque());
   if (FLAG_minor_mc)
     minor_mark_compact_collector_ = new MinorMarkCompactCollector(this);
   gc_idle_time_handler_ = new GCIdleTimeHandler();