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diff --git a/dom/base/test/test_anonymousContent_api.html b/dom/base/test/test_anonymousContent_api.html
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+++ b/dom/base/test/test_anonymousContent_api.html
@@ -0,0 +1,56 @@
+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1020244
+-->
+<head>
+  <meta charset="utf-8">
+  <title>Test for Bug 1020244 - Test the chrome-only AnonymousContent API</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1020244">Mozilla Bug 1020244</a>
+  <script type="application/javascript">
+
+  // Testing the presence of the chrome-only API
+  ok(!document.insertAnonymousContent,
+    "Content document shouldn't have access to insertAnonymousContent");
+  ok(!document.removeAnonymousContent,
+    "Content document shouldn't have access to removeAnonymousContent");
+
+  let chromeDocument = SpecialPowers.wrap(document);
+  ok(chromeDocument.insertAnonymousContent,
+    "Chrome document should have access to insertAnonymousContent");
+  ok(chromeDocument.removeAnonymousContent,
+    "Chrome document should have access to removeAnonymousContent");
+
+  // Testing invalid inputs
+  let invalidNodes = [null, undefined, false, 1, "string"];
+  for (let node of invalidNodes) {
+    let didThrow = false;
+    try {
+      chromeDocument.insertAnonymousContent(node);
+    } catch (e) {
+      didThrow = true;
+    }
+    ok(didThrow, "Passing an invalid node to insertAnonymousContent should throw");
+  }
+
+  // Testing the API of the returned object
+  let div = document.createElement("div");
+  div.textContent = "this is a test element";
+  let anonymousContent = chromeDocument.insertAnonymousContent(div);
+  ok(anonymousContent, "AnonymousContent object returned");
+
+  let members = ["getTextContentForElement", "setTextContentForElement",
+                 "getAttributeForElement", "setAttributeForElement",
+                 "removeAttributeForElement", "getCanvasContext",
+                 "setAnimationForElement", "setStyle"];
+  for (let member of members) {
+    ok(member in anonymousContent, "AnonymousContent object defines " + member);
+  }
+  chromeDocument.removeAnonymousContent(anonymousContent);
+  </script>
+</body>
+</html>