Fix bug number typo

* platform/win/Skipped:

git-svn-id: svn://svn.chromium.org/blink/trunk@81224 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/ChangeLog

+2011-03-15  Adam Roben  <aroben@apple.com>
+
+        Fix bug number typo
+
+        * platform/win/Skipped:
+
 2011-03-15  Adam Roben  <aroben@apple.com>
 
         Skip an asserting test on Windows

third_party/WebKit/LayoutTests/platform/win/Skipped

@@ -411,7 +411,7 @@ media/video-controls-in-media-document.html
 # Sometimes fails http://webkit.org/b/55329
 fast/events/pageshow-pagehide-on-back-cached.html
 
-# Assertion failure http://webkit.org/b/56047
+# Assertion failure http://webkit.org/b/56407
 editing/style/iframe-onload-crash.html
 
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