Update the keyLocation deprecation message for M50 removal

third_party/WebKit/Source/core/frame/UseCounter.cpp

Index: third_party/WebKit/Source/core/frame/UseCounter.cpp
diff --git a/third_party/WebKit/Source/core/frame/UseCounter.cpp b/third_party/WebKit/Source/core/frame/UseCounter.cpp
index 058e47d387641874a117ea03f983023bd673da28..e1a2ce926190aab6dfb77f0219d9d23077983231 100644
--- a/third_party/WebKit/Source/core/frame/UseCounter.cpp
+++ b/third_party/WebKit/Source/core/frame/UseCounter.cpp
@@ -744,7 +744,7 @@ String UseCounter::deprecationMessage(Feature feature)
 
     // Keyboard Event (DOM Level 3)
     case KeyboardEventKeyLocation:
-        return replacedBy("KeyboardEvent.keyLocation", "KeyboardEvent.location");
+        return "'KeyboardEvent.keyLocation' is deprecated and will be removed in M50, around April 2016. Please use 'KeyboardEvent.location' instead. See https://www.chromestatus.com/features/4997403308457984 for more details.";

[jochen (gone - plz use gerrit), 2015/12/16 08:55:58]

I wonder whether we should have a generator function for this string as well?
something like replacedBy("KeyboardEvent.keyLocation", 50, "4997403308457984")

[philipj_slow, 2015/12/18 10:56:43]

Rebased!

 
     case ConsoleMarkTimeline:
         return replacedBy("console.markTimeline", "console.timeStamp");