Make Selection.prototype.toString() enumerable.

third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html

Index: third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html
diff --git a/third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html b/third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html
index 05493cadaf3080ae68eaf8ea507dcb3b4bc9203d..b322ebc854b1776c22911a3c3daf7fa3f06a74c6 100644
--- a/third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html
+++ b/third_party/WebKit/LayoutTests/fast/js/toString-dontEnum.html
@@ -26,7 +26,8 @@
 
             // DOM objects with custom toString() functions
             test(window.location, "Location");
-            test(window.getSelection(), "Selection");
+            // Legacy, toString() kept as non-enumerable.

[sof, 2016/04/22 19:19:45]

I couldn't find coverage for WebKitCSSMatrix' toString(), so I added it while
here.

[yoichio, 2016/04/25 02:13:43]

Could you split this to another CL?

[sof, 2016/04/25 05:40:27]

removed from here.

+            test(window.WebKitCSSMatrix.prototype, "WebKitCSSMatrix");
 
             // Other DOM objects
             test(document.createElement('div'), "HTMLDivElement");