Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/heap/scavenger-inl.h b/src/heap/scavenger-inl.h
new file mode 100644
index 0000000..cd35c7d
--- /dev/null
+++ b/src/heap/scavenger-inl.h
@@ -0,0 +1,53 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_HEAP_SCAVENGER_INL_H_
+#define V8_HEAP_SCAVENGER_INL_H_
+
+#include "src/heap/scavenger.h"
+
+namespace v8 {
+namespace internal {
+
+void Scavenger::ScavengeObject(HeapObject** p, HeapObject* object) {
+ DCHECK(object->GetIsolate()->heap()->InFromSpace(object));
+
+ // We use the first word (where the map pointer usually is) of a heap
+ // object to record the forwarding pointer. A forwarding pointer can
+ // point to an old space, the code space, or the to space of the new
+ // generation.
+ MapWord first_word = object->map_word();
+
+ // If the first word is a forwarding address, the object has already been
+ // copied.
+ if (first_word.IsForwardingAddress()) {
+ HeapObject* dest = first_word.ToForwardingAddress();
+ DCHECK(object->GetIsolate()->heap()->InFromSpace(*p));
+ *p = dest;
+ return;
+ }
+
+ object->GetHeap()->UpdateAllocationSite(
+ object, object->GetHeap()->global_pretenuring_feedback_);
+
+ // AllocationMementos are unrooted and shouldn't survive a scavenge
+ DCHECK(object->map() != object->GetHeap()->allocation_memento_map());
+ // Call the slow part of scavenge object.
+ return ScavengeObjectSlow(p, object);
+}
+
+
+// static
+void StaticScavengeVisitor::VisitPointer(Heap* heap, HeapObject* obj,
+ Object** p) {
+ Object* object = *p;
+ if (!heap->InNewSpace(object)) return;
+ Scavenger::ScavengeObject(reinterpret_cast<HeapObject**>(p),
+ reinterpret_cast<HeapObject*>(object));
+}
+
+} // namespace internal
+} // namespace v8
+
+#endif // V8_HEAP_SCAVENGER_INL_H_