Index: Source/core/page/UseCounter.cpp |
diff --git a/Source/core/page/UseCounter.cpp b/Source/core/page/UseCounter.cpp |
index 885d9b88e0006ad823b63b46f061419362ed060a..4e16de2575e1f5027e55c0ea024d48eb77f71a60 100644 |
--- a/Source/core/page/UseCounter.cpp |
+++ b/Source/core/page/UseCounter.cpp |
@@ -666,6 +666,9 @@ String UseCounter::deprecationMessage(Feature feature) |
case FileError: |
return "FileError is deprecated. Please use the 'name' or 'message' attributes of DOMError rather than 'code'."; |
+ case EventReturnValue: |
+ return "event.returnValue is deprecated. Please use the standard event.preventDefault() instead."; |
+ |
// Features that aren't deprecated don't have a deprecation message. |
default: |
return String(); |