Couple V8AbstractEventListener's lifetime to the V8 listeners lifetime

third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp

Index: third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp b/third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp
index d5a989d40b9c93a045ef184376ab7e9cde65df35..0c7028d45c5a48374d6d068394d2b1d9197e2082 100644
--- a/third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/V8LazyEventListener.cpp
@@ -128,7 +128,8 @@ void V8LazyEventListener::prepareListenerObject(ExecutionContext* executionConte
         return;
 
     if (!toDocument(executionContext)->allowInlineEventHandlers(m_node, this, m_sourceURL, m_position.m_line)) {
-        clearListenerObject();
+        if (hasExistingListenerObject())
+            clearListenerObject();
         return;
     }
 
@@ -203,7 +204,7 @@ void V8LazyEventListener::prepareListenerObject(ExecutionContext* executionConte
     // m_code = String();
     // m_eventParameterName = String();
     // m_sourceURL = String();
-    setListenerObject(wrappedFunction, scriptState);
+    setListenerObject(wrappedFunction);
 }
 
 void V8LazyEventListener::fireErrorEvent(v8::Local<v8::Context> v8Context, ExecutionContext* executionContext, v8::Local<v8::Message> message)