Deprecate Element.offsetParent/offsetTop/offsetLeft/offsetWidth/offsetHeight

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 1e6ff3220c3f97fcefae56edb2f6f0cc9c1b0f52..7cde5edacec465c2d558fcb0d6e552c9ed9efa6c 100644
--- a/Source/core/frame/UseCounter.cpp
+++ b/Source/core/frame/UseCounter.cpp
@@ -947,6 +947,21 @@ String UseCounter::deprecationMessage(Feature feature)
     case PermissionStatusStatus:
         return "PermissionStatus.status is deprecated and will be removed in M47, around November 2015. Please use PermissionStatus.state instead.";
 
+    case ElementOffsetParent:
+        return "'Element.offsetParent' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements";

[philipj_slow, 2015/07/08 12:16:20]

There should be a period at the end of this message.

[tanay.c, 2015/07/10 09:07:20]

Done.

+
+    case ElementOffsetTop:
+        return "'Element.offsetTop' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements";
+
+    case ElementOffsetLeft:
+        return "'Element.offsetLeft' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements";
+
+    case ElementOffsetWidth:
+        return "'Element.offsetWidth' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements";
+
+    case ElementOffsetHeight:
+        return "'Element.offsetHeight' is deprecated and will be removed in M47, around Novemver 2015. The offset* attributes are only standardized and widely supported for HTML elements";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();