Fix LayoutTest that broke on Chrome builds when media attribute logic was removed.

LayoutTests/media/video-source-error-no-candidate.html

Index: LayoutTests/media/video-source-error-no-candidate.html
diff --git a/LayoutTests/media/video-source-error-no-candidate.html b/LayoutTests/media/video-source-error-no-candidate.html
index 8239182973d0ed1a92792632b2b83b03ee72779c..347192d7621b9eec8d73452c020323f4a486e5b0 100644
--- a/LayoutTests/media/video-source-error-no-candidate.html
+++ b/LayoutTests/media/video-source-error-no-candidate.html
@@ -8,7 +8,7 @@
 
             var sources = [];
             var errorCount = 0;
-            var expectedErrorCount = 5;
+            var expectedErrorCount = 4;
 
             function errorEvent(evt)
             {
@@ -49,9 +49,8 @@
 
        <video onloadstart="start()" controls>
             <source id=missing-src type="video/blahblah">
-            <source id=bogus-type src=content/test.mp4 type="video/blahblah">
-            <source id=unsupported-media-query src=content/test.mp4 media=print>
-            <source id=empty-src src="" type="video/mp4">
+            <source id=bogus-type src=content/test.ogv type="video/blahblah">
+            <source id=empty-src src="" type="video/ogg">
             <source id=no-extension-no-type src=nonexistent>
         </video>