[Reland][Extensions Bindings] Add support for filtered events

extensions/renderer/api_binding_js_util.h

Index: extensions/renderer/api_binding_js_util.h
diff --git a/extensions/renderer/api_binding_js_util.h b/extensions/renderer/api_binding_js_util.h
index 00198069dccb2ad3930a32f3d99d6c228e630e57..a02b07e33adf4ef093b32022cf970b99e46dd0ab 100644
--- a/extensions/renderer/api_binding_js_util.h
+++ b/extensions/renderer/api_binding_js_util.h
@@ -51,12 +51,14 @@ class APIBindingJSUtil final : public gin::Wrappable<APIBindingJSUtil> {
 
   // A handler to allow custom bindings to create custom extension API event
   // objects (e.g. foo.onBar).
-  // TODO(devlin): Currently, we ignore schema and options. We'll need to take
-  // at least options into account.
+  // Note: The JS version allows for constructing declarative events; it's
+  // unclear if we'll need to support this.
+  // TODO(devlin): Currently, we ignore schema. We may want to take it into
+  // account.
   void CreateCustomEvent(gin::Arguments* arguments,
                          v8::Local<v8::Value> v8_event_name,
                          v8::Local<v8::Value> unused_schema,
-                         v8::Local<v8::Value> unused_event_options);
+                         bool supports_filters);
 
   // Invalidates an event, removing its listeners and preventing any more from
   // being added.