Hide overlay play button if it can't be shown without clipping

third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html

Index: third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html
diff --git a/third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html b/third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html
index c81fdcb35f0025aac4effb790b59a1ca6dec6fbe..e0b6a426dd74d98e1312b83d6dddf2e211c727aa 100644
--- a/third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html
+++ b/third_party/WebKit/LayoutTests/fullscreen/compositor-touch-hit-rects-fullscreen-video-controls.html
@@ -29,9 +29,11 @@ window.onload = function () {
             consoleWrite("Should report another rect which is not on the document");
         else
             consoleWrite("Should keep rect on document");
-        window.internals.forceCompositingUpdate(document);
-        logRects('handler');
-        endTest();
+        testRunner.layoutAndPaintAsyncThen(function() {
+          window.internals.forceCompositingUpdate(document);
+          logRects('handler');
+          endTest();
+        });
     });
 
     runWithKeyDown(function(){document.querySelector('#video').webkitRequestFullScreen()});