Ignore fullscreen requests for the current fullscreen element

LayoutTests/fullscreen/full-screen-twice-newapi.html

Index: LayoutTests/fullscreen/full-screen-twice-newapi.html
diff --git a/LayoutTests/fullscreen/full-screen-twice-newapi.html b/LayoutTests/fullscreen/full-screen-twice-newapi.html
index 9a027fe4838a81bfd737ce21a1aad66258133858..11837289ec6f3afcd6740af28366c844e2317571 100644
--- a/LayoutTests/fullscreen/full-screen-twice-newapi.html
+++ b/LayoutTests/fullscreen/full-screen-twice-newapi.html
@@ -6,24 +6,12 @@
 
     var documentEnteredFullScreen = function() {
         testExpected("document.webkitCurrentFullScreenElement", document.documentElement);
-        runWithKeyDown(function(){document.documentElement.webkitRequestFullscreen()});
-        waitForEvent(document, 'webkitfullscreenerror', documentDidNotReenterFullScreen, false, true);
-    };
-
-    var documentDidNotReenterFullScreen = function() {
-        testExpected("document.webkitCurrentFullScreenElement", document.documentElement);
         runWithKeyDown(function(){span.webkitRequestFullscreen()});
         waitForEvent(document, 'webkitfullscreenchange', spanEnteredFullScreen, false, true);
     };
 
     var spanEnteredFullScreen = function() {
         testExpected("document.webkitCurrentFullScreenElement", span);
-        runWithKeyDown(function(){span.webkitRequestFullscreen()});
-        waitForEvent(document, 'webkitfullscreenerror', spanDidNotReenterFullScreen, false, true);
-    };
-
-    var spanDidNotReenterFullScreen = function() {
-        testExpected("document.webkitCurrentFullScreenElement", span);
         waitForEvent(document, 'webkitfullscreenchange', spanExited, false, true);
         document.webkitExitFullscreen();
     };