[Extensions] Change renderer-side web accessible resource determination

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index 0659214cc3224474c7c811665680d8eb3c771864..b8218634fe1f2645858df65e37a346b9d5efd55f 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -1070,6 +1070,8 @@ void Dispatcher::OnLoaded(
       extension->permissions_data()->SetPolicyHostRestrictions(
           param.policy_blocked_hosts, param.policy_allowed_hosts);
     }
+
+    ExtensionsRendererClient::Get()->OnExtensionAdded(*extension);
   }
 
   // Update the available bindings for all contexts. These may have changed if
@@ -1171,6 +1173,8 @@ void Dispatcher::OnUnloaded(const std::string& id) {
     return;
   }
 
+  ExtensionsRendererClient::Get()->OnExtensionRemoved(id);
+
   active_extension_ids_.erase(id);
 
   script_injection_manager_->OnExtensionUnloaded(id);