Remove early returns in fullscreen tests

LayoutTests/fullscreen/full-screen-keyboard-enabled.html

Index: LayoutTests/fullscreen/full-screen-keyboard-enabled.html
diff --git a/LayoutTests/fullscreen/full-screen-keyboard-enabled.html b/LayoutTests/fullscreen/full-screen-keyboard-enabled.html
index 69bb2867fa27a4fdf981923aff1c64633be21cb1..12cef46ebe26c2349d8a3b0e8918562fb366972c 100644
--- a/LayoutTests/fullscreen/full-screen-keyboard-enabled.html
+++ b/LayoutTests/fullscreen/full-screen-keyboard-enabled.html
@@ -3,35 +3,29 @@
 <p>This tests that full screen mode does not allow alphanumeric key events.  Press space to continue, then press the 'a' key.
 <span></span>
 <script>
-    // Bail out early if the full screen API is not enabled or is missing:
-    if (Element.prototype.webkitRequestFullScreen == undefined) {
-        logResult(false, "Element.prototype.webkitRequestFullScreen == undefined");
-        endTest();
-    } else {
-        var callback;
-        var fullscreenChanged = function(event)
-        {
-            if (callback)
-                callback(event)
-        };
-        waitForEvent(document, 'webkitfullscreenchange', fullscreenChanged);
+    var callback;
+    var fullscreenChanged = function(event)
+    {
+        if (callback)
+            callback(event)
+    };
+    waitForEvent(document, 'webkitfullscreenchange', fullscreenChanged);
 
-        var spanEnteredFullScreen = function() {
-            callback = null;
-            testExpected("document.webkitIsFullScreen", true);
-            if (window.testRunner && eventSender.keyDown) {
-                waitForEvent(document, 'keypress', keyPressed);
-                eventSender.keyDown('a', []);
-            }
-        };
-        
-        var keyPressed = function(event) {
-            testExpected('event.keyCode', 97); // 'A'
-            endTest();
+    var spanEnteredFullScreen = function() {
+        callback = null;
+        testExpected("document.webkitIsFullScreen", true);
+        if (window.testRunner && eventSender.keyDown) {
+            waitForEvent(document, 'keypress', keyPressed);
+            eventSender.keyDown('a', []);
         }
-        
-        var span = document.getElementsByTagName('span')[0];
-        callback = spanEnteredFullScreen;
-        runWithKeyDown(function(){span.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT)});
+    };
+
+    var keyPressed = function(event) {
+        testExpected('event.keyCode', 97); // 'A'
+        endTest();
     }
+
+    var span = document.getElementsByTagName('span')[0];
+    callback = spanEnteredFullScreen;
+    runWithKeyDown(function(){span.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT)});
 </script>