Add InlinedMarkingVisitor::shouldMarkObject() predicate.

Source/platform/heap/Heap.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2110 matching lines @@
         return set;
     }
 #endif
 
 protected:
     virtual void registerWeakCellWithCallback(void** cell, WeakPointerCallback callback) override
     {
         Impl::registerWeakCellWithCallback(cell, callback);
     }
 
-    inline bool checkSkipForObjectInTerminatingThreadHeap(const void* objectPointer)
+    inline bool shouldMarkObject(const void* objectPointer)
     {
         if (Mode != ThreadLocalMarking)
-            return false;
+            return true;
 
         BaseHeapPage* page = pageFromObject(objectPointer);
         ASSERT(!page->orphaned());
         // When doing a thread local GC, the marker checks if
-        // the object resides in another thread's heap. The
-        // object should not be traced, if it does.
+        // the object resides in another thread's heap. If it
+        // does, the object should not be marked & traced.
         return page->terminating();
     }
 };
 
 void Heap::init()
 {
     ThreadState::init();
     s_markingStack = new CallbackStack();
     s_postMarkingCallbackStack = new CallbackStack();
     s_weakCallbackStack = new CallbackStack();
@@ skipping 666 matching lines @@
 bool Heap::s_shutdownCalled = false;
 bool Heap::s_lastGCWasConservative = false;
 FreePagePool* Heap::s_freePagePool;
 OrphanedPagePool* Heap::s_orphanedPagePool;
 Heap::RegionTree* Heap::s_regionTree = nullptr;
 size_t Heap::s_allocatedObjectSize = 0;
 size_t Heap::s_allocatedSpace = 0;
 size_t Heap::s_markedObjectSize = 0;
 
 } // namespace blink