diff --git a/layout/reftests/ogg-video/reftest.list b/layout/reftests/ogg-video/reftest.list
index 75ffae03a072..18b106604f68 100644
--- a/layout/reftests/ogg-video/reftest.list
+++ b/layout/reftests/ogg-video/reftest.list
@@ -31,3 +31,4 @@ skip-if(gtk2Widget) HTTP(..) == zoomed-1.xhtml zoomed-1-ref.html
 == poster-13.html poster-ref-blue400x300.html
 == poster-14.html poster-ref-blue250x200.html
 == poster-15.html poster-ref-green70x30.html
+== undersize-clipped.html undersize-clipped-ref.html
diff --git a/layout/reftests/ogg-video/undersize-clipped-ref.html b/layout/reftests/ogg-video/undersize-clipped-ref.html
new file mode 100644
index 000000000000..2103dfea7d75
--- /dev/null
+++ b/layout/reftests/ogg-video/undersize-clipped-ref.html
@@ -0,0 +1,19 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<style>
+#mask {
+  position: absolute;
+  z-index: 3;
+  width: 7px;
+  height: 5px;
+  background-color: green;
+  top: 10px;
+  left: 10px;
+}
+</style>
+</head>
+<body style="background:white;">
+<div id="mask"></div>
+</body>
+</html>
diff --git a/layout/reftests/ogg-video/undersize-clipped.html b/layout/reftests/ogg-video/undersize-clipped.html
new file mode 100644
index 000000000000..6ae3d490e3f5
--- /dev/null
+++ b/layout/reftests/ogg-video/undersize-clipped.html
@@ -0,0 +1,33 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<style>
+#mask {
+  position: absolute;
+  z-index: 3;
+  width: 7px;
+  height: 5px;
+  background-color: green;
+  top: 10px;
+  left: 10px;
+}
+</style>
+</head>
+<body style="background:white;">
+<!--
+Test if video displays correctly when it's smaller than the amount of space
+required to draw its controls. The controls should be clipped to the css
+specified dimensions.
+
+We draw a mask over the video to prevent the status overlay interferring. The controls
+need to be on (so that the test would fail if they drew outside of the element's
+area) but we need to mask them out as we can't guarantee the status overlay
+will or won't be showing or fading in or out when the reftest does its comparison.
+-->
+<div id="mask"></div>
+<video controls src="black140x100.ogv"
+       style="position:absolute; left: 10px; top: 10px; width: 7px; height:5px;">
+</video>
+
+</body>
+</html>
