Reduce namespaces for ash::launcher::AppLauncherId

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 d5948ddc48fcfe7a88755f0b50ddbc4aee49c3ff..fa664f9a29920d33a5fe942b8a5486554e853442 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.cc
@@ -35,7 +35,7 @@ class ChromeShelfItemDelegate : public ash::mojom::ShelfItemDelegate {
  private:
   // ash::mojom::ShelfItemDelegate:
   void LaunchItem() override {
-    controller_->LaunchApp(ash::launcher::AppLauncherId(app_id_),
+    controller_->LaunchApp(ash::AppLauncherId(app_id_),
                            ash::LAUNCH_FROM_UNKNOWN, ui::EF_NONE);
   }
   void ExecuteCommand(uint32_t command_id, int32_t event_flags) override {
@@ -275,7 +275,7 @@ void ChromeLauncherControllerMus::PinAppsFromPrefs() {
   if (!ConnectToShelfController())
     return;
 
-  std::vector<ash::launcher::AppLauncherId> pinned_apps =
+  std::vector<ash::AppLauncherId> pinned_apps =
       ash::launcher::GetPinnedAppsFromPrefs(profile()->GetPrefs(),
                                             launcher_controller_helper());