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diff --git a/Source/WebCore/manual-tests/media-default-playback-rate.html b/Source/WebCore/manual-tests/media-default-playback-rate.html
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+++ b/Source/WebCore/manual-tests/media-default-playback-rate.html
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+
+<html>
+    <head>
+        <!-- LayoutTests location is hard-coded to avoid duplication of code. -->
+        <script src="http://svn.webkit.org/repository/webkit/trunk/LayoutTests/media/media-file.js"></script>
+        <script src="http://svn.webkit.org/repository/webkit/trunk/LayoutTests/media/video-test.js"></script>
+
+        <script>
+            var expectedRates = { "defaultPlaybackRate" : 1, "playbackRate" : 1};
+            var playingFromScript = false;
+            var changedRate = false;
+
+            function absoluteUrl(url)
+            {
+                var a = document.createElement('a');
+                a.href = url;
+                return a.href;
+            }
+
+            function testRates()
+            {
+                consoleWrite("");
+                var playWithControllerButton = !changedRate && !playingFromScript;
+                testExpected("video.playbackRate", playWithControllerButton ? expectedRates['defaultPlaybackRate'] : expectedRates['playbackRate']);
+                testExpected("video.defaultPlaybackRate", expectedRates['defaultPlaybackRate']);
+                changedRate = false;
+            }
+
+            function playing()
+            {
+                consoleWrite("<br>'playing' event");
+                expectedRates['playbackRate'] = playingFromScript ? video.playbackRate : video.defaultPlaybackRate;
+                testRates();
+                playingFromScript = false;
+            }
+
+            function ratechange()
+            {
+                consoleWrite("<br>'ratechange' event");
+                testRates();
+            }
+
+            function start()
+            {
+                findMediaElement();
+                video.addEventListener('ratechange', ratechange);
+                video.addEventListener('playing', playing);
+
+                // Use the video file from the svn repository to avoid duplicating the file.
+                video.src = absoluteUrl(findMediaFile('video', 'http://svn.webkit.org/repository/webkit/trunk/LayoutTests/media/content/test'));
+                testRates();
+            }
+
+            function play()
+            {
+                playingFromScript = true;
+                video.play();
+            }
+
+            function setRate(which, rate)
+            {
+                changedRate = true;
+                video[which] = rate;
+                expectedRates[which] = rate;
+            }
+
+        </script>
+    </head>
+
+    <body onload="start()">
+        
+        <video controls > </video>
+        <ul>
+            <li>The current 'playbackRate' and 'defaultPlaybackRate' should be logged every time either changes.</li>
+            <li>'playbackRate' should be set to 'defaultPlaybackRate' when the Play button in the built-in controls is pressed</li>
+            <li>'playbackRate' should NOT when play() is called from script.</li>
+        </ul>
+        <div>
+            <button id="controls" onclick="setRate('defaultPlaybackRate', 2)">defaultPlaybackRate = 2</button>
+            <button id="controls" onclick="setRate('defaultPlaybackRate', 1)">defaultPlaybackRate = 1</button>
+            <button id="controls" onclick="setRate('playbackRate', 2)">playbackRate = 2</button>
+            <button id="controls" onclick="setRate('playbackRate', 1)">playbackRate = 1</button>
+        </div>
+        <div>
+            <button id="controls" onclick="play()">play()</button>
+            <button id="controls" onclick="video.pause()">pause()</button>
+        </div>
+        <br>
+    </body>
+</html>