Remove the :-webkit-full-screen-document pseudo class

LayoutTests/fullscreen/full-screen-css.html

Index: LayoutTests/fullscreen/full-screen-css.html
diff --git a/LayoutTests/fullscreen/full-screen-css.html b/LayoutTests/fullscreen/full-screen-css.html
index f970f5c61b5798c328a9f0b3e50407edaf796d2b..2029437a11268f1f557a7d6e9a078662f9da92b9 100644
--- a/LayoutTests/fullscreen/full-screen-css.html
+++ b/LayoutTests/fullscreen/full-screen-css.html
@@ -2,8 +2,8 @@
 <script src="full-screen-test.js"></script>
 <style>
     :-webkit-full-screen { background: lime; }
-    :-webkit-full-screen-document { color: blue; }
-    :root:-webkit-full-screen-document:not(:-webkit-full-screen) { background: red; }
+    :-webkit-full-screen-ancestor { color: blue; }
+    :root:-webkit-full-screen-ancestor { background: red; }
 </style>
 <span></span>
 <script>
@@ -25,7 +25,7 @@
         testExpected("document.webkitCurrentFullScreenElement", document.documentElement);
         testExpected("document.defaultView.getComputedStyle(span, null).getPropertyValue('background-color')", "rgba(0, 0, 0, 0)");
         testExpected("document.defaultView.getComputedStyle(document.documentElement, null).getPropertyValue('background-color')", "rgb(0, 255, 0)");
-        testExpected("document.defaultView.getComputedStyle(document.documentElement, null).getPropertyValue('color')", "rgb(0, 0, 255)");
+        testExpected("document.defaultView.getComputedStyle(document.documentElement, null).getPropertyValue('color')", "rgb(0, 0, 0)");
         callback = spanEnteredFullScreen;
         runWithKeyDown(function(){span.webkitRequestFullScreen()});
     };