[DeprecateAs] if call addEventListener or removeEventListener without enough arguments

Source/core/frame/UseCounter.cpp

Index: Source/core/frame/UseCounter.cpp
diff --git a/Source/core/frame/UseCounter.cpp b/Source/core/frame/UseCounter.cpp
index a25946e078acdad385773c3e16865a4940cd90f3..43454de30769858f4dd76b9ef4c3c8182aeb3e3e 100644
--- a/Source/core/frame/UseCounter.cpp
+++ b/Source/core/frame/UseCounter.cpp
@@ -733,6 +733,10 @@ String UseCounter::deprecationMessage(Feature feature)
     case ElementSetPrefix:
         return "Setting 'Element.prefix' is deprecated, as it is read-only per DOM (http://dom.spec.whatwg.org/#element).";
 
+    // http://crbug.com/353484
+    case EventTargetMissingArgs:
+        return "Omitting either of the first two arguments of 'EventTarget.addEventListener' or 'EventTarget.removeEventListener' is deprecated, as these are required (http://dom.spec.whatwg.org/#interface-eventtarget).";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();