Remove ArrayBufferDeallocationObserver

Source/bindings/templates/interface.cpp

 {% extends 'interface_base.cpp' %}
 
 
 {##############################################################################}
 {% block indexed_property_getter %}
 {% if indexed_property_getter and not indexed_property_getter.is_custom %}
 {% set getter = indexed_property_getter %}
 static void indexedPropertyGetter(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
     {{cpp_class}}* impl = {{v8_class}}::toImpl(info.Holder());
@@ skipping 707 matching lines @@
     if (v8buffer->IsExternal()) {
         const WrapperTypeInfo* wrapperTypeInfo = toWrapperTypeInfo(object);
         RELEASE_ASSERT(wrapperTypeInfo);
         RELEASE_ASSERT(wrapperTypeInfo->ginEmbedder == gin::kEmbedderBlink);
         return toScriptWrappable(object)->toImpl<{{cpp_class}}>();
     }
 
     // Transfer the ownership of the allocated memory to an ArrayBuffer without
     // copying.
     v8::ArrayBuffer::Contents v8Contents = v8buffer->Externalize();
-    WTF::ArrayBufferContents contents(v8Contents.Data(), v8Contents.ByteLength(), 0);
+    WTF::ArrayBufferContents contents(v8Contents.Data(), v8Contents.ByteLength());
     RefPtr<{{cpp_class}}> buffer = {{cpp_class}}::create(contents);
-    // Since this transfer doesn't allocate new memory, do not call
-    // DOMArrayBufferDeallocationObserver::blinkAllocatedMemory.
-    buffer->buffer()->setDeallocationObserverWithoutAllocationNotification(
-        DOMArrayBufferDeallocationObserver::instance());
     buffer->associateWithWrapper(v8::Isolate::GetCurrent(), buffer->wrapperTypeInfo(), object);
 
     return buffer.get();
 }
 
 {% elif interface_name == 'ArrayBufferView' %}
 {{cpp_class}}* V8ArrayBufferView::toImpl(v8::Local<v8::Object> object)
 {
     ASSERT(object->IsArrayBufferView());
     ScriptWrappable* scriptWrappable = toScriptWrappable(object);
@@ skipping 199 matching lines @@
 }
 
 {% for method in methods if method.overloads and method.overloads.has_partial_overloads %}
 void {{v8_class}}::register{{method.name | blink_capitalize}}MethodForPartialInterface(void (*method)(const v8::FunctionCallbackInfo<v8::Value>&))
 {
     {{cpp_class}}V8Internal::{{method.name}}MethodForPartialInterface = method;
 }
 {% endfor %}
 {% endif %}
 {% endblock %}