1 files changed, 25 insertions, 0 deletions
diff --git a/chromium/v8/src/heap/off-thread-heap.h b/chromium/v8/src/heap/off-thread-heap.h
index de902be52fb..3bb1777df11 100644
--- a/chromium/v8/src/heap/off-thread-heap.h
+++ b/chromium/v8/src/heap/off-thread-heap.h
@@ -6,28 +6,51 @@
 #define V8_HEAP_OFF_THREAD_HEAP_H_
 
 #include <vector>
+
 #include "src/common/globals.h"
 #include "src/heap/large-spaces.h"
+#include "src/heap/paged-spaces.h"
 #include "src/heap/spaces.h"
+#include "src/objects/heap-object.h"
 
 namespace v8 {
 namespace internal {
 
+class OffThreadTransferHandleStorage;
+
 class V8_EXPORT_PRIVATE OffThreadHeap {
  public:
   explicit OffThreadHeap(Heap* heap);
+  ~OffThreadHeap();
 
   HeapObject AllocateRaw(int size, AllocationType allocation,
                          AllocationAlignment alignment = kWordAligned);
   void AddToScriptList(Handle<Script> shared);
 
+  void OnAllocationEvent(HeapObject obj, int size) {
+    // TODO(leszeks): Do something here.
+  }
+
+  ReadOnlySpace* read_only_space() const {
+    // Access the main-thread heap via the spaces.
+    return space_.heap()->read_only_space();
+  }
+
+  bool Contains(HeapObject obj);
+
+  bool ReserveSpace(Heap::Reservation* reservations);
+
   HeapObject CreateFillerObjectAt(Address addr, int size,
                                   ClearFreedMemoryMode clear_memory_mode);
 
+  OffThreadTransferHandleStorage* AddTransferHandleStorage(HandleBase handle);
+
   void FinishOffThread();
   void Publish(Heap* heap);
 
  private:
+  friend class DeserializerAllocator;
+
   class StringSlotCollectingVisitor;
 
   struct RelativeSlot {
@@ -43,6 +66,8 @@ class V8_EXPORT_PRIVATE OffThreadHeap {
   OffThreadLargeObjectSpace lo_space_;
   std::vector<RelativeSlot> string_slots_;
   std::vector<Script> script_list_;
+  std::unique_ptr<OffThreadTransferHandleStorage>
+      off_thread_transfer_handles_head_;
   bool is_finished = false;
 };