[Extensions Bindings] Introduce a supportsLazyListeners property

extensions/renderer/bindings/event_emitter_unittest.cc

Index: extensions/renderer/bindings/event_emitter_unittest.cc
diff --git a/extensions/renderer/bindings/event_emitter_unittest.cc b/extensions/renderer/bindings/event_emitter_unittest.cc
index 1491fdd3219f20750d4c78dbb91a3b8846227b80..5414e84ea3d756b67bbc73c5b58e80889d59609a 100644
--- a/extensions/renderer/bindings/event_emitter_unittest.cc
+++ b/extensions/renderer/bindings/event_emitter_unittest.cc
@@ -30,7 +30,7 @@ TEST_F(EventEmitterUnittest, TestDispatchMethod) {
   v8::Local<v8::Context> context = MainContext();
 
   auto listeners = base::MakeUnique<UnfilteredEventListeners>(
-      base::Bind(&DoNothingOnListenerChange), binding::kNoListenerMax);
+      base::Bind(&DoNothingOnListenerChange), binding::kNoListenerMax, true);
 
   // The test util methods enforce that functions always throw or always don't
   // throw, but we test listeners that do both. Provide implementations for