Chromium Code Reviews| Index: sky/specs/design.md |
| diff --git a/sky/specs/design.md b/sky/specs/design.md |
| index a57eeeddf44f9bb94f5a5fd19a68ba82f0ca89a5..6dfe7456f6bc05df764fcf0b0511af30e7369a25 100644 |
| --- a/sky/specs/design.md |
| +++ b/sky/specs/design.md |
| @@ -30,3 +30,6 @@ Design Principles |
| * APIs should always spell acronyms like words (findId, not findID; |
| XmlHttpRequest, not XMLHttpRequest) |
| + |
| +* If we extend a method to have new arguments, they must be optional |
| + if there's any content using the existing method. |