Recording array buffer views.

src/runtime.cc

Index: src/runtime.cc
diff --git a/src/runtime.cc b/src/runtime.cc
index c47e35d3aeabb4be51a4a0d42c1824f875fad45c..b6ef7c7860a44acaccba9f4e0ed950d0e5b2e9c5 100644
--- a/src/runtime.cc
+++ b/src/runtime.cc
@@ -687,6 +687,10 @@ void Runtime::SetupArrayBuffer(Isolate* isolate,
       isolate->factory()->NewNumberFromSize(allocated_length);
   CHECK(byte_length->IsSmi() || byte_length->IsHeapNumber());
   array_buffer->set_byte_length(*byte_length);
+
+  array_buffer->set_weak_next(isolate->heap()->array_buffers_list());
+  isolate->heap()->set_array_buffers_list(*array_buffer);
+  array_buffer->set_weak_first_array(Smi::FromInt(0));
 }
 
 
@@ -855,6 +859,8 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitialize) {
 
   Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length);
   holder->set_length(*length_obj);
+  holder->set_weak_next(buffer->weak_first_array());
+  buffer->set_weak_first_array(*holder);
 
   Handle<ExternalArray> elements =
       isolate->factory()->NewExternalArray(