Added non-prefixed navigator.getGamepads() with updated API

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 f8d9a2a3700008b8a14ed8306fe0087ebba0725a..ffb5d2da00c3921c5a6029198a41346a673d6915 100644
--- a/Source/core/frame/UseCounter.cpp
+++ b/Source/core/frame/UseCounter.cpp
@@ -685,6 +685,9 @@ String UseCounter::deprecationMessage(Feature feature)
     case PrefixedSpeechAttribute:
         return "The 'x-webkit-speech' input field attribute is deprecated. Please use the JavaScript API instead.";
 
+    case PrefixedGamepad:
+        return "'navigator.webkitGetGamepads' is deprecated. Please use the unprefixed 'navigator.getGamepads' method instead.";

[eseidel, 2014/03/06 01:56:16]

You can remove "the unprefixed"  and "method" and the sentence will still convey
your meaning.

+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();