Use apps::AppEventRouter to launch app_shell apps

apps/shell/browser/shell_extension_system.cc

Index: apps/shell/browser/shell_extension_system.cc
diff --git a/apps/shell/browser/shell_extension_system.cc b/apps/shell/browser/shell_extension_system.cc
index ff74ae566c72d9d0c9604bb5b78617d34f1b7820..3eb11520d90c7a4ea5c1845fe174804a90d0c2e4 100644
--- a/apps/shell/browser/shell_extension_system.cc
+++ b/apps/shell/browser/shell_extension_system.cc
@@ -7,6 +7,7 @@
 #include <string>
 
 #include "apps/app_window_registry.h"
+#include "apps/browser/api/app_runtime/app_runtime_api.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ -74,16 +75,8 @@ bool ShellExtensionSystem::LoadAndLaunchApp(const base::FilePath& app_dir) {
       content::Source<BrowserContext>(browser_context_),
       content::NotificationService::NoDetails());
 
-  // This is effectively the same behavior as
-  // apps::AppEventRouter::DispatchOnLaunchedEvent without any dependency
-  // on ExtensionSystem or Profile.
-  scoped_ptr<base::DictionaryValue> launch_data(new base::DictionaryValue());
-  launch_data->SetBoolean("isKioskSession", false);
-  scoped_ptr<base::ListValue> event_args(new base::ListValue());
-  event_args->Append(launch_data.release());
-  scoped_ptr<Event> event(
-      new Event("app.runtime.onLaunched", event_args.Pass()));
-  event_router_->DispatchEventWithLazyListener(extension->id(), event.Pass());
+  // Launch the app.
+  apps::AppEventRouter::DispatchOnLaunchedEvent(browser_context_, extension);
 
   return true;
 }