[Extensions Bindings] Introduce a supportsLazyListeners property

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index 7dfb51c298507ec9e6d10aba12a6f6235c133aaa..7761664db00d3727dfa99cbd97f424edc7eac628 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -215,8 +215,9 @@ void SendEventListenersIPC(binding::EventListenersChanged changed,
                            ScriptContext* context,
                            const std::string& event_name,
                            const base::DictionaryValue* filter,
-                           bool was_manual) {
-  bool lazy = ExtensionFrameHelper::IsContextForEventPage(context);
+                           bool update_lazy_listeners) {
+  bool is_lazy = update_lazy_listeners &&
+                 ExtensionFrameHelper::IsContextForEventPage(context);
   // TODO(lazyboy): For service workers, use worker specific IPC::Sender
   // instead of |render_thread|.
   const int worker_thread_id = content::WorkerThread::GetCurrentId();
@@ -226,17 +227,17 @@ void SendEventListenersIPC(binding::EventListenersChanged changed,
   if (filter) {
     if (changed == binding::EventListenersChanged::HAS_LISTENERS) {
       render_thread->Send(new ExtensionHostMsg_AddFilteredListener(
-          extension_id, event_name, *filter, lazy));
+          extension_id, event_name, *filter, is_lazy));
     } else {
       DCHECK_EQ(binding::EventListenersChanged::NO_LISTENERS, changed);
       render_thread->Send(new ExtensionHostMsg_RemoveFilteredListener(
-          extension_id, event_name, *filter, lazy));
+          extension_id, event_name, *filter, is_lazy));
     }
   } else {
     if (changed == binding::EventListenersChanged::HAS_LISTENERS) {
       render_thread->Send(new ExtensionHostMsg_AddListener(
           extension_id, context->url(), event_name, worker_thread_id));
-      if (lazy) {
+      if (is_lazy) {
         render_thread->Send(
             new ExtensionHostMsg_AddLazyListener(extension_id, event_name));
       }
@@ -244,7 +245,7 @@ void SendEventListenersIPC(binding::EventListenersChanged changed,
       DCHECK_EQ(binding::EventListenersChanged::NO_LISTENERS, changed);
       render_thread->Send(new ExtensionHostMsg_RemoveListener(
           extension_id, context->url(), event_name, worker_thread_id));
-      if (lazy && was_manual) {
+      if (is_lazy) {
         render_thread->Send(
             new ExtensionHostMsg_RemoveLazyListener(extension_id, event_name));
       }