Use visitDOMWrapper to preserve WebGL JS object wrappers

third_party/WebKit/Source/bindings/modules/v8/custom/V8WebGL2RenderingContextCustom.cpp

 /*
  * Copyright (C) 2016 Google Inc. All rights reserved.

[haraken, 2016/09/02 19:08:41]

Use the 3-line copyright.

[Kai Ninomiya, 2016/09/03 01:02:05]

Is this right?

  *
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  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
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  * in the documentation and/or other materials provided with the
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  *
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-#ifndef WebEffectiveConnectionType_h
-#define WebEffectiveConnectionType_h
+#include "bindings/modules/v8/V8WebGL2RenderingContext.h"
+
+#include "modules/webgl/WebGL2RenderingContextBase.h"
+
+using namespace WTF;
 
 namespace blink {
 
-enum class WebEffectiveConnectionType {
-    TypeUnknown,
-    TypeOffline,
-    TypeSlow2G,
-    Type2G,
-    Type3G,
-    Type4G
-};
+void V8WebGL2RenderingContext::visitDOMWrapperCustom(v8::Isolate* isolate, ScriptWrappable* scriptWrappable, const v8::Persistent<v8::Object>& wrapper)
+{
+    WebGL2RenderingContext* impl = scriptWrappable->toImpl<WebGL2RenderingContext>();
+    impl->visitChildDOMWrappers(isolate, wrapper);
+}
 
 } // namespace blink
-
-#endif // WebEffectiveConnectionType_h