Couple V8AbstractEventListener's lifetime to the V8 listeners lifetime

third_party/WebKit/Source/bindings/core/v8/V8EventListener.h

Index: third_party/WebKit/Source/bindings/core/v8/V8EventListener.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8EventListener.h b/third_party/WebKit/Source/bindings/core/v8/V8EventListener.h
index a9a00b4ffc118747baf2c117cfda39be0525575d..5b6423df9ccfeec6f3ff6a90cfe4f9d5f97c7d3e 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8EventListener.h
+++ b/third_party/WebKit/Source/bindings/core/v8/V8EventListener.h
@@ -45,11 +45,13 @@ class V8EventListener : public V8AbstractEventListener {
 public:
     static PassRefPtrWillBeRawPtr<V8EventListener> create(v8::Local<v8::Object> listener, bool isAttribute, ScriptState* scriptState)
     {
-        return adoptRefWillBeNoop(new V8EventListener(listener, isAttribute, scriptState));
+        RefPtrWillBeRawPtr<V8EventListener> eventListener = adoptRefWillBeNoop(new V8EventListener(isAttribute, scriptState));
+        eventListener->setListenerObject(listener);
+        return eventListener.release();
     }
 
 protected:
-    V8EventListener(v8::Local<v8::Object> listener, bool isAttribute, ScriptState*);
+    V8EventListener(bool isAttribute, ScriptState*);
     v8::Local<v8::Function> getListenerFunction(ScriptState*);
     v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override;
 };