Backing out bug 379906 to fix orange.

layout/style/nsRuleNode.cpp

@@ -2493,9 +2493,6 @@ nsRuleNode::ComputeUserInterfaceData(nsStyleStruct* aStartStruct,
       ui->mCursor = parentUI->mCursor;
       ui->CopyCursorArrayFrom(*parentUI);
     }
-    else if (eCSSUnit_Initial == list->mValue.GetUnit()) {
-      ui->mCursor = NS_STYLE_CURSOR_AUTO;
-    }
     else {
       // The parser will never create a list that is *all* URL values --
       // that's invalid.

layout/style/test/test_initial_computation.html

@@ -125,6 +125,7 @@ var gBrokenInitial = {
   "bottom": true,
   "caption-side": true,
   "clear": true,
+  "cursor": true,
   "direction": true,
   "display": true,
   "empty-cells": true,