Discard pinning an app with non-empty launcher id.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
index e51e737c3f95dbfa094af909b744ddaf9b15db09..2692ed567438ff45b87b0b49bd63312df23a9e5e 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
@@ -273,13 +273,11 @@ void ChromeLauncherControllerMus::PinAppsFromPrefs() {
   if (!ConnectToShelfController())
     return;
 
-  std::vector<ash::launcher::AppLauncherId> pinned_apps =
-      ash::launcher::GetPinnedAppsFromPrefs(profile()->GetPrefs(),
-                                            launcher_controller_helper());
+  std::vector<std::string> pinned_apps = ash::launcher::GetPinnedAppsFromPrefs(
+      profile()->GetPrefs(), launcher_controller_helper());
 
-  for (const auto& app_launcher_id : pinned_apps) {
-    const std::string app_id = app_launcher_id.app_id();
-    if (app_launcher_id.ToString() == ash::launcher::kPinnedAppsPlaceholder)
+  for (const auto& app_id : pinned_apps) {
+    if (app_id == ash::launcher::kPinnedAppsPlaceholder)
       continue;
 
     ash::mojom::ShelfItemPtr item(ash::mojom::ShelfItem::New());