Update the keyLocation deprecation message for M50 removal

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

 /*
  * Copyright (C) 2012 Google, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 726 matching lines @@
 
 String UseCounter::deprecationMessage(Feature feature)
 {
     switch (feature) {
     // Quota
     case PrefixedStorageInfo:
         return "'window.webkitStorageInfo' is deprecated. Please use 'navigator.webkitTemporaryStorage' or 'navigator.webkitPersistentStorage' instead.";
 
     // 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");
 
     case FileError:
         return "FileError is deprecated. Please use the 'name' or 'message' attributes of DOMError rather than 'code'.";
 
     case CSSStyleSheetInsertRuleOptionalArg:
         return "Calling CSSStyleSheet.insertRule() with one argument is deprecated. Please pass the index argument as well: insertRule(x, 0).";
 
@@ skipping 218 matching lines @@
 UseCounter* UseCounter::getFrom(const StyleSheetContents* sheetContents)
 {
     // FIXME: We may want to handle stylesheets that have multiple owners
     //        https://crbug.com/242125
     if (sheetContents && sheetContents->hasSingleOwnerNode())
         return getFrom(sheetContents->singleOwnerDocument());
     return 0;
 }
 
 } // namespace blink