[extension SW] Support lazy events from extension service workers.

extensions/renderer/script_context.cc

Index: extensions/renderer/script_context.cc
diff --git a/extensions/renderer/script_context.cc b/extensions/renderer/script_context.cc
index 197e6c0c764c6ee96c514d876b832a2dea46894d..dc7fb9f7bab24d089aaaf2456729f5a7f55d8f14 100644
--- a/extensions/renderer/script_context.cc
+++ b/extensions/renderer/script_context.cc
@@ -254,6 +254,11 @@ std::string ScriptContext::GetEffectiveContextTypeDescription() const {
   return GetContextTypeDescriptionString(effective_context_type_);
 }
 
+const GURL& ScriptContext::service_worker_scope() const {
+  DCHECK_EQ(Feature::SERVICE_WORKER_CONTEXT, context_type());
+  return service_worker_scope_;
+}
+
 bool ScriptContext::IsAnyFeatureAvailableToContext(
     const Feature& api,
     CheckAliasStatus check_alias) {