Use visitDOMWrapper to preserve WebGL JS object wrappers

third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp

Index: third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp
diff --git a/third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp b/third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp
index f5370cb50413efde620cf9409ffcbb5097405bac..8cd17dda8f3a44eb06d8eec0c07362d8e58469b9 100644
--- a/third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp
+++ b/third_party/WebKit/Source/modules/webgl/WebGLVertexArrayObjectBase.cpp
@@ -140,9 +140,12 @@ void WebGLVertexArrayObjectBase::unbindBuffer(WebGLBuffer* buffer)
     updateAttribBufferBoundStatus();
 }
 
-ScopedPersistent<v8::Array>* WebGLVertexArrayObjectBase::getPersistentCache()
+void WebGLVertexArrayObjectBase::visitChildDOMWrappers(v8::Isolate* isolate, const v8::Persistent<v8::Object>& wrapper)
 {
-    return &m_arrayBufferWrappers;
+    DOMWrapperWorld::setWrapperReferencesInAllWorlds(wrapper, m_boundElementArrayBuffer, isolate);
+    for (size_t i = 0; i < m_arrayBufferList.size(); ++i) {
+        DOMWrapperWorld::setWrapperReferencesInAllWorlds(wrapper, m_arrayBufferList[i], isolate);
+    }
 }
 
 DEFINE_TRACE(WebGLVertexArrayObjectBase)