Update app info and install prompt UI to show retained devices.

chrome/browser/extensions/api/developer_private/developer_private_api.cc

Index: chrome/browser/extensions/api/developer_private/developer_private_api.cc
diff --git a/chrome/browser/extensions/api/developer_private/developer_private_api.cc b/chrome/browser/extensions/api/developer_private/developer_private_api.cc
index e3417879bfa331a18ff86e66a2ac10b5e3908b8a..bf335ff24bb9c8d2d93fc2e4c0fab5f59895e997 100644
--- a/chrome/browser/extensions/api/developer_private/developer_private_api.cc
+++ b/chrome/browser/extensions/api/developer_private/developer_private_api.cc
@@ -5,6 +5,7 @@
 #include "chrome/browser/extensions/api/developer_private/developer_private_api.h"
 
 #include "apps/app_load_service.h"
+#include "apps/saved_devices_service.h"
 #include "apps/saved_files_service.h"
 #include "base/base64.h"
 #include "base/bind.h"
@@ -758,7 +759,13 @@ bool DeveloperPrivateShowPermissionsDialogFunction::RunSync() {
       retained_file_paths.push_back(retained_file_entries[i].path);
     }
   }
-  prompt_->ReviewPermissions(this, extension, retained_file_paths);
+  std::vector<base::string16> retained_device_messages;
+  if (extension->permissions_data()->HasAPIPermission(APIPermission::kUsb)) {
+    retained_device_messages = apps::SavedDevicesService::Get(GetProfile())
+                                   ->GetPermissionMessageStrings(extension_id_);
+  }
+  prompt_->ReviewPermissions(
+      this, extension, retained_file_paths, retained_device_messages);
   return true;
 }