[Extensions Bindings] Avoid passing the event filter to JS

extensions/renderer/js_extension_bindings_system.cc

Index: extensions/renderer/js_extension_bindings_system.cc
diff --git a/extensions/renderer/js_extension_bindings_system.cc b/extensions/renderer/js_extension_bindings_system.cc
index 4506928738734248354349d1cae178ffb03348b7..f2bcc96d855071b047e230dace2be39ad55de17e 100644
--- a/extensions/renderer/js_extension_bindings_system.cc
+++ b/extensions/renderer/js_extension_bindings_system.cc
@@ -28,8 +28,6 @@ namespace extensions {
 
 namespace {
 
-static const char kEventDispatchFunction[] = "dispatchEvent";
-
 // Gets |field| from |object| or creates it as an empty object if it doesn't
 // exist.
 v8::Local<v8::Object> GetOrCreateObject(const v8::Local<v8::Object>& object,
@@ -252,26 +250,8 @@ void JsExtensionBindingsSystem::DispatchEventInContext(
     const base::ListValue* event_args,
     const base::DictionaryValue* filtering_info,
     ScriptContext* context) {
-  v8::HandleScope handle_scope(context->isolate());
-  v8::Context::Scope context_scope(context->v8_context());
-
-  std::vector<v8::Local<v8::Value>> arguments;
-  arguments.push_back(gin::StringToSymbol(context->isolate(), event_name));
-
-  {
-    std::unique_ptr<content::V8ValueConverter> converter(
-        content::V8ValueConverter::create());
-    arguments.push_back(
-        converter->ToV8Value(event_args, context->v8_context()));
-    if (filtering_info && !filtering_info->empty()) {
-      arguments.push_back(
-          converter->ToV8Value(filtering_info, context->v8_context()));
-    }
-  }
-
-  context->module_system()->CallModuleMethodSafe(
-      kEventBindings, kEventDispatchFunction, arguments.size(),
-      arguments.data());
+  EventBindings::DispatchEventInContext(event_name, event_args, filtering_info,
+                                        context);
 }
 
 bool JsExtensionBindingsSystem::HasEventListenerInContext(