diff --git a/PerformanceTests/ChangeLog b/PerformanceTests/ChangeLog
index 2d42db90b4e7bee13fe2de888128cc7f42974b32..449202226ac3b131ea69118f811e0628bdb98fcc 100644
--- a/PerformanceTests/ChangeLog
+++ b/PerformanceTests/ChangeLog
@@ -1,3 +1,14 @@
+2013-01-17  Dominic Cooney  <dominicc@chromium.org>
+
+        Unreviewed, re-land r140051.
+
+        I overzealously rolled this out; the test was intended to be
+        skipped, but was not skipped because of a typo in Skipped. See
+        <https://bugs.webkit.org/show_bug.cgi?id=107210>
+
+        * Parser/html-parser-srcdoc.html: Added.
+        * Skipped: Big-P Parser.
+
 2013-01-17  Sheriff Bot  <webkit.review.bot@gmail.com>
 
         Unreviewed, rolling out r140051.
diff --git a/PerformanceTests/Parser/html-parser-srcdoc.html b/PerformanceTests/Parser/html-parser-srcdoc.html
new file mode 100644
index 0000000000000000000000000000000000000000..3e8d16bef25bda4540e8991a5f54420be79d3f43
--- /dev/null
+++ b/PerformanceTests/Parser/html-parser-srcdoc.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<body>
+<script src="../resources/runner.js"></script>
+<script>
+// Use the threaded parser if available:
+if (window.internals && window.internals.settings.setThreadedHTMLParser)
+    window.internals.settings.setThreadedHTMLParser(true);
+
+var spec = PerfTestRunner.loadFile("resources/html5.html");
+
+var iframe = document.createElement("iframe");
+iframe.style.display = "none";  // Prevent creation of the rendering tree, so we only test HTML parsing.
+iframe.sandbox = '';  // Prevent external script loads which could cause write() to return before completing the parse.
+document.body.appendChild(iframe);
+
+PerfTestRunner.prepareToMeasureValuesAsync({done: onCompletedRun, unit: 'ms'});
+
+iframe.onload = function() {
+    var now = PerfTestRunner.now();
+    PerfTestRunner.measureValueAsync(now - then);
+    then = now;
+    iframe.srcdoc = spec;
+}
+var then = PerfTestRunner.now();
+iframe.srcdoc = spec;
+
+function onCompletedRun() {
+    iframe.onload = null;
+    // FIXME: This should probably remove the iframe, but that currently
+    // causes the threaded-parser to never send the load event for the main page.
+    // document.body.removeChild(iframe);
+}
+</script>
+</body>
diff --git a/PerformanceTests/Skipped b/PerformanceTests/Skipped
index 76e3d507bd1acec8c4826bb03970147560a1abf2..d991b3c29988f2dcf56c36ef5c575c52e2dcf15c 100644
--- a/PerformanceTests/Skipped
+++ b/PerformanceTests/Skipped
@@ -67,3 +67,8 @@ SVG/SvgNestedUse.html
 ShadowDOM
 
 Canvas/drawimage.html
+
+# Works fine, but is mostly useful to the threaded-parsing folks, as
+# it's very similar to parser/html-parser.html just using
+# srcdoc to load instead of document.write.
+Parser/html-parser-srcdoc.html
