Move the anonymous decoration to decoratedName.

LayoutTests/platform/win/editing/execCommand/4916402-expected.txt

Index: LayoutTests/platform/win/editing/execCommand/4916402-expected.txt
diff --git a/LayoutTests/platform/win/editing/execCommand/4916402-expected.txt b/LayoutTests/platform/win/editing/execCommand/4916402-expected.txt
index 922250f7518fec9b2d79c1d661c91e3f6fb81b8f..8b9ef5979e69e35f59050dcbecfab8c15cffe796 100644
--- a/LayoutTests/platform/win/editing/execCommand/4916402-expected.txt
+++ b/LayoutTests/platform/win/editing/execCommand/4916402-expected.txt
@@ -10,12 +10,12 @@ layer at (0,0) size 800x600
       LayoutBlockFlow {DIV} at (0,52) size 784x52
         LayoutBlockFlow {UL} at (0,0) size 784x18
           LayoutListItem {LI} at (40,0) size 744x18
-            LayoutListMarker at (-17,0) size 7x17: bullet
+            LayoutListMarker (anonymous) at (-17,0) size 7x17: bullet
             LayoutText {#text} at (0,0) size 22x17
               text run at (0,0) width 22: "foo"
         LayoutBlockFlow {OL} at (0,34) size 784x18
           LayoutListItem {LI} at (40,0) size 744x18
-            LayoutListMarker at (-20,0) size 16x17: "1"
+            LayoutListMarker (anonymous) at (-20,0) size 16x17: "1"
             LayoutText {#text} at (0,0) size 21x17
               text run at (0,0) width 21: "bar"
 caret: position 0 of child 0 {#text} of child 0 {LI} of child 1 {OL} of child 2 {DIV} of body