Files.app: Add a drive sync error event to the fileBrowserPrivate API.

chrome/common/extensions/api/file_browser_private.idl

Index: chrome/common/extensions/api/file_browser_private.idl
diff --git a/chrome/common/extensions/api/file_browser_private.idl b/chrome/common/extensions/api/file_browser_private.idl
index 0f398e7cd9b86c8cb5c6a5a288108e09d49ffcfb..aa029c2058ee30214b5719e3cfa09c9d24c7d5c6 100644
--- a/chrome/common/extensions/api/file_browser_private.idl
+++ b/chrome/common/extensions/api/file_browser_private.idl
@@ -100,6 +100,12 @@ enum DeviceEventType {
   format_fail
 };
 
+// Drive sync error type.
+enum DriveSyncErrorType {
+  // Request to delete a file without permission.
+  delete_without_permission
+};
+
 // A file task represents an action that the file manager can perform over the
 // currently selected files. See
 // chrome/browser/chromeos/extensions/file_manager/file_tasks.h for details
@@ -232,6 +238,10 @@ dictionary FileTransferStatus {
   double? total;
 };
 
+dictionary DriveSyncErrorEvent {
+  DriveSyncErrorType type;
+};
+
 // Payload data for copy status progress updates.
 dictionary CopyProgressStatus {
   // The type of the progress event.
@@ -668,5 +678,7 @@ interface Events {
   static void onDriveConnectionStatusChanged();
 
   static void onDeviceChanged(DeviceEvent event);
+
+  static void onDriveSyncError(DriveSyncErrorEvent event);
 };
 };