EraseIfExists 598 chrome/browser/sync_file_system/drive_backend_v1/drive_metadata_store.cc if (!EraseIfExists(&incremental_sync_origins_, origin, &resource_id)) { EraseIfExists 620 chrome/browser/sync_file_system/drive_backend_v1/drive_metadata_store.cc if (!EraseIfExists(&incremental_sync_origins_, origin, &resource_id) && EraseIfExists 621 chrome/browser/sync_file_system/drive_backend_v1/drive_metadata_store.cc !EraseIfExists(&disabled_origins_, origin, &resource_id)) {