[Extensions Bindings] Request JS execution from messaging bindings

extensions/renderer/native_extension_bindings_system.h

Index: extensions/renderer/native_extension_bindings_system.h
diff --git a/extensions/renderer/native_extension_bindings_system.h b/extensions/renderer/native_extension_bindings_system.h
index d02a8522f20c54cf1b1bdd2d5a6a7259ace8fd37..3b9a1280cad37d33eb400dba9e8db62f56a2298c 100644
--- a/extensions/renderer/native_extension_bindings_system.h
+++ b/extensions/renderer/native_extension_bindings_system.h
@@ -53,6 +53,8 @@ class NativeExtensionBindingsSystem : public ExtensionBindingsSystem {
                               const base::ListValue* event_args,
                               const base::DictionaryValue* filtering_info,
                               ScriptContext* context) override;
+  bool HasEventListenerInContext(const std::string& event_name,
+                                 ScriptContext* context) override;
   void HandleResponse(int request_id,
                       bool success,
                       const base::ListValue& response,