Reland "Remove the weak list of views from array buffers"

src/heap-snapshot-generator.cc

 // Copyright 2013 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.
 
 #include "src/v8.h"
 
 #include "src/heap-snapshot-generator-inl.h"
 
 #include "src/allocation-tracker.h"
 #include "src/code-stubs.h"
@@ skipping 1157 matching lines @@
                          GlobalObject::kNativeContextOffset);
     SetInternalReference(global_obj, entry,
                          "global_proxy", global_obj->global_proxy(),
                          GlobalObject::kGlobalProxyOffset);
     STATIC_ASSERT(GlobalObject::kHeaderSize - JSObject::kHeaderSize ==
                  3 * kPointerSize);
   } else if (obj->IsJSArrayBufferView()) {
     JSArrayBufferView* view = JSArrayBufferView::cast(obj);
     SetInternalReference(view, entry, "buffer", view->buffer(),
                          JSArrayBufferView::kBufferOffset);
-    SetWeakReference(view, entry, "weak_next", view->weak_next(),
-                     JSArrayBufferView::kWeakNextOffset);
   }
   TagObject(js_obj->properties(), "(object properties)");
   SetInternalReference(obj, entry,
                        "properties", js_obj->properties(),
                        JSObject::kPropertiesOffset);
   TagObject(js_obj->elements(), "(object elements)");
   SetInternalReference(obj, entry,
                        "elements", js_obj->elements(),
                        JSObject::kElementsOffset);
 }
@@ skipping 373 matching lines @@
  private:
   size_t size_;
   V8HeapExplorer* explorer_;
 };
 
 
 void V8HeapExplorer::ExtractJSArrayBufferReferences(
     int entry, JSArrayBuffer* buffer) {
   SetWeakReference(buffer, entry, "weak_next", buffer->weak_next(),
                    JSArrayBuffer::kWeakNextOffset);
-  SetWeakReference(buffer, entry,
-                   "weak_first_view", buffer->weak_first_view(),
-                   JSArrayBuffer::kWeakFirstViewOffset);
   // Setup a reference to a native memory backing_store object.
   if (!buffer->backing_store())
     return;
   size_t data_size = NumberToSize(heap_->isolate(), buffer->byte_length());
   JSArrayBufferDataEntryAllocator allocator(data_size, this);
   HeapEntry* data_entry =
       filler_->FindOrAddEntry(buffer->backing_store(), &allocator);
   filler_->SetNamedReference(HeapGraphEdge::kInternal,
                              entry, "backing_store", data_entry);
 }
@@ skipping 1578 matching lines @@
   writer_->AddString("\"<dummy>\"");
   for (int i = 1; i < sorted_strings.length(); ++i) {
     writer_->AddCharacter(',');
     SerializeString(sorted_strings[i]);
     if (writer_->aborted()) return;
   }
 }
 
 
 } }  // namespace v8::internal