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diff --git a/layout/tools/tests/debug_utils.html b/layout/tools/tests/debug_utils.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
+<html>
+<head>
+	<title>Layout Debug Utilities</title>
+</head>
+<script type="application/javascript">
+
+const nsILayoutDebuggingTools = Components.interfaces.nsILayoutDebuggingTools;
+var gDebugTools;
+
+function Init()
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools = Components.classes["@mozilla.org/layout-debug/layout-debuggingtools;1"].createInstance(nsILayoutDebuggingTools);
+  gDebugTools.init(window);
+}
+
+function SetShowFrameBorders(inShow)
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.visualDebugging = inShow;
+}
+
+function SetShowEventTargetBorders(inShow)
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.visualEventDebugging = inShow;
+}
+
+function SetShowReflowStats(inShow)
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.reflowCounts = inShow;
+}
+
+function DumpFrames()
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.dumpFrames();
+}
+
+function DumpContent()
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.dumpContent();
+}
+
+function DumpViews()
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.dumpViews();
+}
+
+function DumpWebShells()
+{
+  netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
+  gDebugTools.dumpWebShells();
+}
+
+</script>
+
+<body onload="Init()">
+<h1>Layout Debug Utils</h1>
+
+<p>Note that these only work in debug builds</h1>
+
+<h2>Global settings</h2>
+
+<form name="globalsform">
+<div>
+<input type="checkbox" id="showBordersCheck" name="showBordersCheck"
+    onchange="SetShowFrameBorders(document.globalsform.showBordersCheck.checked)"></input>
+<label for="showBordersCheck">Show Frame Borders</label>
+</div>
+<div>
+<input type="checkbox"
+    id="showEventTargetCheck"
+    name="showEventTargetCheck"
+    onchange="SetShowEventTargetBorders(document.globalsform.showEventTargetCheck.checked)"></input>
+<label for="showEventTargetCheck">Show Event Target Borders</label>
+</div>
+</form>
+
+<h2>Per-Window settings</h2>
+
+<form name="windowform">
+<input type="checkbox"
+    id="showReflowStatsCheck"
+    name="showReflowStatsCheck"
+    onchange="SetShowReflowStats(document.windowform.showReflowStatsCheck.checked)"></input>
+<label for="showReflowStatsCheck">Show Reflow Stats</label>
+</form>
+
+<h2>Dumping</h2>
+
+<form name="dumpform">
+<div>
+<input type="button" value="Dump Frames" onclick="DumpFrames()">
+<input type="button" value="Dump Content" onclick="DumpContent()">
+<input type="button" value="Dump Views" onclick="DumpViews()">
+<input type="button" value="Dump WebShells" onclick="DumpWebShells()">
+</div>
+
+</form>
+
+
+
+</body>
+</html>
+