Issue #1525 - Kill marquee element (uplift)

102 files changed, 18 insertions, 3903 deletions

diff --git a/accessible/base/ARIAMap.cpp b/accessible/base/ARIAMap.cpp
index c29d37873..3a89cf9ed 100644
--- a/accessible/base/ARIAMap.cpp
+++ b/accessible/base/ARIAMap.cpp
@@ -347,16 +347,6 @@ static const nsRoleMapEntry sWAIRoleMaps[] =
     eLandmark,
     kNoReqStates
   },
-  { // marquee
-    &nsGkAtoms::marquee,
-    roles::ANIMATION,
-    kUseMapRole,
-    eNoValue,
-    eNoAction,
-    eOffLiveAttr,
-    kGenericAccType,
-    kNoReqStates
-  },
   { // math
     &nsGkAtoms::math,
     roles::FLAT_EQUATION,
diff --git a/accessible/mac/mozAccessible.mm b/accessible/mac/mozAccessible.mm
index 07868fea6..a02779ef2 100644
--- a/accessible/mac/mozAccessible.mm
+++ b/accessible/mac/mozAccessible.mm
@@ -732,8 +732,6 @@ using namespace mozilla::a11y;
       return @"AXDocument";
     if (roleAtom == nsGkAtoms::log_)
       return @"AXApplicationLog";
-    if (roleAtom == nsGkAtoms::marquee)
-      return @"AXApplicationMarquee";
     if (roleAtom == nsGkAtoms::math)
       return @"AXDocumentMath";
     if (roleAtom == nsGkAtoms::note_)
@@ -869,7 +867,6 @@ static const RoleDescrMap sRoleDescrMap[] = {
   { @"AXApplicationAlert", NS_LITERAL_STRING("alert") },
   { @"AXApplicationAlertDialog", NS_LITERAL_STRING("alertDialog") },
   { @"AXApplicationLog", NS_LITERAL_STRING("log") },
-  { @"AXApplicationMarquee", NS_LITERAL_STRING("marquee") },
   { @"AXApplicationStatus", NS_LITERAL_STRING("status") },
   { @"AXApplicationTimer", NS_LITERAL_STRING("timer") },
   { @"AXContentSeparator", NS_LITERAL_STRING("separator") },
diff --git a/accessible/tests/mochitest/attributes/test_obj.html b/accessible/tests/mochitest/attributes/test_obj.html
index 9e147e1d1..0706dd408 100644
--- a/accessible/tests/mochitest/attributes/test_obj.html
+++ b/accessible/tests/mochitest/attributes/test_obj.html
@@ -62,7 +62,6 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=558036
       testAbsentAttrs("live3", {"live" : ""});
       testAttrs("log", {"live" : "polite"}, true);
       testAttrs("logAssertive", {"live" : "assertive"}, true);
-      testAttrs("marquee", {"live" : "off"}, true);
       testAttrs("status", {"live" : "polite"}, true);
       testAttrs("timer", {"live" : "off"}, true);
       testAbsentAttrs("tablist", {"live" : "polite"});
@@ -72,7 +71,6 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=558036
       testAttrs("live2Child", {"container-live" : "polite"}, true);
       testAttrs("logChild", {"container-live" : "polite"}, true);
       testAttrs("logAssertiveChild", {"container-live" : "assertive"}, true);
-      testAttrs("marqueeChild", {"container-live" : "off"}, true);
       testAttrs("statusChild", {"container-live" : "polite"}, true);
       testAttrs("timerChild", {"container-live" : "off"}, true);
       testAbsentAttrs("tablistChild", {"container-live" : "polite"});
@@ -80,13 +78,11 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=558036
       // container-live-role object attribute
       testAttrs("log", {"container-live-role" : "log"}, true);
       testAttrs("logAssertive", {"container-live-role" : "log"}, true);
-      testAttrs("marquee", {"container-live-role" : "marquee"}, true);
       testAttrs("status", {"container-live-role" : "status"}, true);
       testAttrs("timer", {"container-live-role" : "timer"}, true);
       testAttrs("logChild", {"container-live-role" : "log"}, true);
       testAttrs("logAssertive", {"container-live-role" : "log"}, true);
       testAttrs("logAssertiveChild", {"container-live-role" : "log"}, true);
-      testAttrs("marqueeChild", {"container-live-role" : "marquee"}, true);
       testAttrs("statusChild", {"container-live-role" : "status"}, true);
       testAttrs("timerChild", {"container-live-role" : "timer"}, true);
       testAbsentAttrs("tablistChild", {"container-live-role" : "tablist"});
@@ -230,11 +226,9 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=558036
 
   <!-- back to aria -->
   <div id="live" aria-live="polite">excuse <div id="liveChild">me</div></div>
-  <div id="live2" role="marquee" aria-live="polite">excuse <div id="live2Child">me</div></div>
   <div id="live3" role="region">excuse</div>
   <div id="log" role="log">excuse <div id="logChild">me</div></div>
   <div id="logAssertive" role="log" aria-live="assertive">excuse <div id="logAssertiveChild">me</div></div>
-  <div id="marquee" role="marquee">excuse <div id="marqueeChild">me</div></div>
   <div id="status" role="status">excuse <div id="statusChild">me</div></div>
   <div id="tablist" role="tablist">tablist <div id="tablistChild">tab</div></div>
   <div id="timer" role="timer">excuse <div id="timerChild">me</div></div>
diff --git a/accessible/tests/mochitest/role/test_aria.html b/accessible/tests/mochitest/role/test_aria.html
index 22021fa57..482ce4327 100644
--- a/accessible/tests/mochitest/role/test_aria.html
+++ b/accessible/tests/mochitest/role/test_aria.html
@@ -41,7 +41,6 @@
       testRole("aria_listbox", ROLE_LISTBOX);
       testRole("aria_listitem", ROLE_LISTITEM);
       testRole("aria_log", ROLE_TEXT); // weak role
-      testRole("aria_marquee", ROLE_ANIMATION);
       testRole("aria_math", ROLE_FLAT_EQUATION);
       testRole("aria_menu", ROLE_MENUPOPUP);
       testRole("aria_menubar", ROLE_MENUBAR);
@@ -89,9 +88,6 @@
       testRole("log_table", ROLE_TABLE);
       testRole("timer_div", ROLE_SECTION);
 
-      // other roles that are forms of "live regions"
-      testRole("marquee_h1", ROLE_ANIMATION);
-
       // strong landmark
       testRole("application", ROLE_APPLICATION);
       testRole("form", ROLE_FORM);
@@ -219,7 +215,6 @@
   <span id="aria_listbox" role="listbox"/>
   <span id="aria_listitem" role="listitem"/>
   <span id="aria_log" role="log"/>
-  <span id="aria_marquee" role="marquee"/>
   <span id="aria_math" role="math"/>
   <span id="aria_menu" role="menu"/>
   <span id="aria_menubar" role="menubar"/>
@@ -263,7 +258,6 @@
   <table role="log" id="log_table">
     <tr><td>Table based log</td></tr>
   </table>
-  <h1 role="marquee" id="marquee_h1">marquee</h1>
   <div role="timer" id="timer_div">timer</div>
 
   <!-- landmarks -->
diff --git a/dom/base/crashtests/1251361.html b/dom/base/crashtests/1251361.html
deleted file mode 100644
index 57c76121f..000000000
--- a/dom/base/crashtests/1251361.html
+++ /dev/null
@@ -1,33 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="UTF-8">
-<script>
-
-var frameRoot;
-
-function boom()
-{
-    var frameWin = f.contentWindow;
-    frameRoot = frameWin.document.documentElement;
-    frameWin.location.replace("data:text/html;charset=UTF-8,<body onload='parent.g();'>2");
-}
-
-function g()
-{
-    setTimeout(h, 0);
-}
-
-function h()
-{
-    var newDoc = document.implementation.createDocument('', '', null);
-    newDoc.adoptNode(frameRoot);
-}
-
-</script>
-<body onload="boom();">
-
-<iframe id="f" src="data:text/html;charset=UTF-8,<marquee>1"></iframe>
-
-</body>
-</html>
diff --git a/dom/base/crashtests/371466-1.xhtml b/dom/base/crashtests/371466-1.xhtml
deleted file mode 100644
index 8da0b22b1..000000000
--- a/dom/base/crashtests/371466-1.xhtml
+++ /dev/null
@@ -1,24 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml" class="reftest-wait">
-<head>
-<script>
-
-function boom()
-{
-  var marquee = document.getElementById("marquee");
-  var span = document.getElementById("span");
-  marquee.appendChild(span);
-  marquee.removeChild(span);
-  document.documentElement.removeAttribute("class");
-}
-
-</script>
-</head>
-
-<body onload="setTimeout(boom, 30);">
-
-<marquee id="marquee" />
-
-<span id="span"><div>Foo</div><textarea/></span>
-
-</body>
-</html>
diff --git a/dom/base/crashtests/535926-1.html b/dom/base/crashtests/535926-1.html
deleted file mode 100644
index bddd8dc28..000000000
--- a/dom/base/crashtests/535926-1.html
+++ /dev/null
@@ -1,28 +0,0 @@
-<html class="reftest-wait">
-<head>
-
-<script type="text/javascript">
-
-var i = 0;
-function mmf()
-{
-  if (++i == 2) {
-    document.body.innerHTML = "<marquee>";
-    document.documentElement.removeAttribute("class");
-  }
-}
-
-function init()
-{
-  document.documentElement.offsetHeight;
-  for (var j = 0; j < 2; ++j) {
-    var iframe = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");
-    iframe.addEventListener("load", mmf, false);
-    document.body.appendChild(iframe);
-  }
-}
-
-</script>
-</head>
-<body onload="setTimeout(init, 0);"></body>
-</html>
diff --git a/dom/base/nsGkAtomList.h b/dom/base/nsGkAtomList.h
index 96f5acf3a..22869bd66 100644
--- a/dom/base/nsGkAtomList.h
+++ b/dom/base/nsGkAtomList.h
@@ -580,7 +580,6 @@ GK_ATOM(marginTop, "margin-top")
 GK_ATOM(marginheight, "marginheight")
 GK_ATOM(marginwidth, "marginwidth")
 GK_ATOM(mark, "mark")
-GK_ATOM(marquee, "marquee")
 GK_ATOM(match, "match")
 GK_ATOM(max, "max")
 GK_ATOM(maxheight, "maxheight")
diff --git a/dom/base/test/test_bug840098.html b/dom/base/test/test_bug840098.html
index 8eaceb589..e9275d55b 100644
--- a/dom/base/test/test_bug840098.html
+++ b/dom/base/test/test_bug840098.html
@@ -15,7 +15,7 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=840098
 <div id="content" style="display: none">
   <div id="foo"></div>
 </div>
-<marquee id="m">Hello</marquee>
+<div id="m">Hello</div>
 <pre id="test">
 <script type="application/javascript">
 
diff --git a/dom/base/test/test_caretPositionFromPoint.html b/dom/base/test/test_caretPositionFromPoint.html
index 50f12b1ef..054f73227 100644
--- a/dom/base/test/test_caretPositionFromPoint.html
+++ b/dom/base/test/test_caretPositionFromPoint.html
@@ -115,7 +115,7 @@
 <div id="a" contenteditable><span id="test1">abc, abc, abc</span><br>
 <span id="test2" style="color: blue;">abc, abc, abc</span><br>
 <textarea id="test3">abc</textarea><input id="test4" value="abcdef"><br><br>
-<marquee>marquee</marquee>
+<div>div</div>
 </div>
 <input id="test5" value="The rabbit-hole went straight on like a tunnel for some way, and then dipped suddenly down, so suddenly that Alice had not a moment to think about stopping herself before she found herself falling down a very deep well. Either the well was very deep, or she fell very slowly, for she had plenty of time as she went down to look about her and to wonder what was going to happen next. First, she tried to look down and make out what she was coming to, but it was too dark to see anything; then she looked at the sides of the well, and noticed that they were filled with cupboards and book-shelves; here and there she saw maps and pictures hung upon pegs. She took down a jar from one of the shelves as she passed; it was labelled `ORANGE MARMALADE', but to her great disappointment it was empty: she did not like to drop the jar for fear of killing somebody, so managed to put it into one of the cupboards as she fell past it." type="text">
 <input id="test6" type="number" style="width:150px; height:57px;" value="31415"><br>
diff --git a/dom/base/test/test_mutationobservers.html b/dom/base/test/test_mutationobservers.html
deleted file mode 100644
index a6de89595..000000000
--- a/dom/base/test/test_mutationobservers.html
+++ /dev/null
@@ -1,913 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=641821
--->
-<head>
-  <meta charset="utf-8">
-  <title>Test for Bug 641821</title>
-  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
-  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
-</head>
-<body onload="runTest()">                                                  
-<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=641821">Mozilla Bug 641821</a>
-<p id="display"></p>
-<div id="content" style="display: none">
-                                
-</div>
-<pre id="test">
-<script type="application/javascript">
-
-/** Test for Bug 641821 **/
-
-SimpleTest.requestFlakyTimeout("requestFlakyTimeout is silly. (But make sure marquee has time to initialize itself.)");
-
-var div = document.createElement("div");
-
-var M;
-if ("MozMutationObserver" in window) {
-  M = window.MozMutationObserver;
-} else if ("WebKitMutationObserver" in window) {
-  M = window.WebKitMutationObserver;
-} else {
-  M = window.MutationObserver;
-}
-
-function log(str) {
-  var d = document.createElement("div");
-  d.textContent = str;
-  if (str.indexOf("PASSED") >= 0) {
-    d.setAttribute("style", "color: green;");
-  } else {
-    d.setAttribute("style", "color: red;");
-  }
-  document.getElementById("log").appendChild(d);
-}
-
-// Some helper functions so that this test runs also outside mochitest.
-if (!("ok" in window)) {
-  window.ok = function(val, str) {
-    log(str + (val ? " PASSED\n" : " FAILED\n"));
-  }
-}
-
-if (!("is" in window)) {
-  window.is = function(val, refVal, str) {
-    log(str + (val == refVal? " PASSED " : " FAILED ") + 
-        (val != refVal ? "expected " + refVal + " got " + val + "\n" : "\n"));
-  }
-}
-
-if (!("isnot" in window)) {
-  window.isnot = function(val, refVal, str) {
-    log(str + (val != refVal? " PASSED " : " FAILED ") + 
-        (val == refVal ? "Didn't expect " + refVal + "\n" : "\n"));
-  }
-}
-
-if (!("SimpleTest" in window)) {
-  window.SimpleTest =
-  {
-    finish: function() {
-      document.getElementById("log").appendChild(document.createTextNode("DONE"));
-    },
-    waitForExplicitFinish: function() {}
-  }
-}
-
-function then(thenFn) {
-  setTimeout(function() {
-    if (thenFn) {
-      setTimeout(thenFn, 0);
-    } else {
-      SimpleTest.finish();
-    }
-  }, 0);
-}
-
-var m;
-var m2;
-var m3;
-var m4;
-
-// Checks basic parameter validation and normal 'this' handling.
-// Tests also basic attribute handling.
-function runTest() {
-  m = new M(function(){});
-  ok(m, "MutationObserver supported");
-
-  var e = null;
-  try {
-    m.observe(document, {});
-  } catch (ex) {
-    e = ex;
-  }
-  ok(e, "Should have thrown an exception");
-  is(e.name, "TypeError", "Should have thrown TypeError");
-
-  e = null;
-  try {
-    m.observe(document, { childList: true, attributeOldValue: true });
-  } catch (ex) {
-    e = ex;
-  }
-  ok(!e, "Shouldn't have thrown an exception");
-
-  e = null;
-  try {
-    m.observe(document, { childList: true, attributeFilter: ["foo"] });
-  } catch (ex) {
-    e = ex;
-  }
-  ok(!e, "Shouldn't have thrown an exception");
-
-  e = null;
-  try {
-    m.observe(document, { childList: true, characterDataOldValue: true });
-  } catch (ex) {
-    e = ex;
-  }
-  ok(!e, "Shouldn't have thrown an exception");
-
-  e = null;
-  try {
-    m.observe(document);
-  } catch (ex) {
-    e = ex;
-  }
-  ok(e, "Should have thrown an exception");
-
-  m = new M(function(records, observer) {
-      is(observer, m, "2nd parameter should be the mutation observer");
-      is(observer, this, "2nd parameter should be 'this'");
-      is(records.length, 1, "Should have one record.");
-      is(records[0].type, "attributes", "Should have got attributes record");
-      is(records[0].target, div, "Should have got div as target");
-      is(records[0].attributeName, "foo", "Should have got record about foo attribute");
-      observer.disconnect();
-      then(testThisBind);
-      m = null;
-    });
-  m.observe(div, { attributes: true, attributeFilter: ["foo"] });
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].attributes, true);
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].attributeFilter.length, 1)
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].attributeFilter[0], "foo")
-  div.setAttribute("foo", "bar");
-}
-
-// 'this' handling when fn.bind() is used.
-function testThisBind() {
-  var child = div.appendChild(document.createElement("div"));
-  var gchild = child.appendChild(document.createElement("div"));
-  m = new M((function(records, observer) {
-      is(observer, m, "2nd parameter should be the mutation observer");
-      isnot(observer, this, "2nd parameter should be 'this'");
-      is(records.length, 3, "Should have one record.");
-      is(records[0].type, "attributes", "Should have got attributes record");
-      is(records[0].target, div, "Should have got div as target");
-      is(records[0].attributeName, "foo", "Should have got record about foo attribute");
-      is(records[0].oldValue, "bar", "oldValue should be bar");
-      is(records[1].type, "attributes", "Should have got attributes record");
-      is(records[1].target, div, "Should have got div as target");
-      is(records[1].attributeName, "foo", "Should have got record about foo attribute");
-      is(records[1].oldValue, "bar2", "oldValue should be bar2");
-      is(records[2].type, "attributes", "Should have got attributes record");
-      is(records[2].target, gchild, "Should have got div as target");
-      is(records[2].attributeName, "foo", "Should have got record about foo attribute");
-      is(records[2].oldValue, null, "oldValue should be bar2");
-      observer.disconnect();
-      then(testCharacterData);
-      m = null;
-    }).bind(window));
-  m.observe(div, { attributes: true, attributeOldValue: true, subtree: true });
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].attributes, true)
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].attributeOldValue, true)
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[0].getObservingInfo()[0].subtree, true)
-  div.setAttribute("foo", "bar2");
-  div.removeAttribute("foo");
-  div.removeChild(child);
-  child.removeChild(gchild);
-  div.appendChild(gchild);
-  div.removeChild(gchild);
-  gchild.setAttribute("foo", "bar");
-}
-
-function testCharacterData() {
-  m = new M(function(records, observer) {
-      is(records[0].type, "characterData", "Should have got characterData");
-      is(records[0].oldValue, null, "Shouldn't have got oldData");
-      observer.disconnect();
-      m = null;
-    });
-  m2 = new M(function(records, observer) {
-      is(records[0].type, "characterData", "Should have got characterData");
-      is(records[0].oldValue, "foo", "Should have got oldData");
-      observer.disconnect();
-      m2 = null;
-    });
-  m3 = new M(function(records, observer) {
-      ok(false, "This should not be called!");
-      observer.disconnect();
-      m3 = null;
-    });
-  m4 = new M(function(records, observer) {
-      is(records[0].oldValue, null, "Shouldn't have got oldData");
-      observer.disconnect();
-      m3.disconnect();
-      m3 = null;
-      then(testChildList);
-      m4 = null;
-    });
-
-  div.appendChild(document.createTextNode("foo"));
-  m.observe(div, { characterData: true, subtree: true });
-  m2.observe(div, { characterData: true, characterDataOldValue: true, subtree: true});
-  // If observing the same node twice, only the latter option should apply.
-  m3.observe(div, { characterData: true, subtree: true });
-  m3.observe(div, { characterData: true, subtree: false });
-  m4.observe(div.firstChild, { characterData: true, subtree: false });
-  
-  is(SpecialPowers.wrap(div).getBoundMutationObservers().length, 3)
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[2].getObservingInfo()[0].characterData, true)
-  is(SpecialPowers.wrap(div).getBoundMutationObservers()[2].getObservingInfo()[0].subtree, false)
-
-  div.firstChild.data = "bar";
-}
-
-function testChildList() {
-  var fc = div.firstChild;
-  m = new M(function(records, observer) {
-      is(records[0].type, "childList", "Should have got childList");
-      is(records[0].addedNodes.length, 0, "Shouldn't have got addedNodes");
-      is(records[0].removedNodes.length, 1, "Should have got removedNodes");
-      is(records[0].removedNodes[0], fc, "Should have removed a text node");
-      observer.disconnect();
-      then(testChildList2);
-      m = null;
-    });
-  m.observe(div, { childList: true});
-  div.removeChild(div.firstChild);
-}
-
-function testChildList2() {
-  div.innerHTML = "<span>1</span><span>2</span>";
-  m = new M(function(records, observer) {
-      is(records[0].type, "childList", "Should have got childList");
-      is(records[0].removedNodes.length, 2, "Should have got removedNodes");
-      is(records[0].addedNodes.length, 1, "Should have got addedNodes");
-      observer.disconnect();
-      then(testChildList3);
-      m = null;
-    });
-  m.observe(div, { childList: true });
-  div.innerHTML = "<span><span>foo</span></span>";
-}
-
-function testChildList3() {
-  m = new M(function(records, observer) {
-      is(records[0].type, "childList", "Should have got childList");
-      is(records[0].removedNodes.length, 1, "Should have got removedNodes");
-      is(records[0].addedNodes.length, 1, "Should have got addedNodes");
-      observer.disconnect();
-      then(testChildList4);
-      m = null;
-    });
-  m.observe(div, { childList: true });
-  div.textContent = "hello";
-}
-
-function testChildList4() {
-  div.textContent = null;
-  var df = document.createDocumentFragment();
-  var t1 = df.appendChild(document.createTextNode("Hello "));
-  var t2 = df.appendChild(document.createTextNode("world!"));
-  var s1 = div.appendChild(document.createElement("span"));
-  s1.textContent = "foo";
-  var s2 = div.appendChild(document.createElement("span"));
-  function callback(records, observer) {
-      is(records.length, 3, "Should have got one record for removing nodes from document fragment and one record for adding them to div");
-      is(records[0].removedNodes.length, 2, "Should have got removedNodes");
-      is(records[0].removedNodes[0], t1, "Should be the 1st textnode");
-      is(records[0].removedNodes[1], t2, "Should be the 2nd textnode");
-      is(records[1].addedNodes.length, 2, "Should have got addedNodes");
-      is(records[1].addedNodes[0], t1, "Should be the 1st textnode");
-      is(records[1].addedNodes[1], t2, "Should be the 2nd textnode");
-      is(records[1].previousSibling, s1, "Should have previousSibling");
-      is(records[1].nextSibling, s2, "Should have nextSibling");
-      is(records[2].type, "characterData", "3rd record should be characterData");
-      is(records[2].target, t1, "target should be the textnode");
-      is(records[2].oldValue, "Hello ", "oldValue was 'Hello '");
-      observer.disconnect();
-      then(testChildList5);
-      m = null;
-    };
-  m = new M(callback);
-  m.observe(df, { childList: true, characterData: true, characterDataOldValue: true, subtree: true });
-  is(SpecialPowers.wrap(df).getBoundMutationObservers()[0].getObservingInfo()[0].childList, true)
-  is(SpecialPowers.wrap(df).getBoundMutationObservers()[0].getObservingInfo()[0].characterData, true)
-  is(SpecialPowers.wrap(df).getBoundMutationObservers()[0].getObservingInfo()[0].characterDataOldValue, true)
-  is(SpecialPowers.wrap(df).getBoundMutationObservers()[0].getObservingInfo()[0].subtree, true)
-  ok(SpecialPowers.compare(SpecialPowers.wrap(df).getBoundMutationObservers()[0].mutationCallback, callback))
-  m.observe(div, { childList: true });
-  is(SpecialPowers.wrap(df).getBoundMutationObservers()[0].getObservingInfo().length, 2)
-  
-  // Make sure transient observers aren't leaked.
-  var leakTest = new M(function(){});
-  leakTest.observe(div, { characterData: true, subtree: true });
-  
-  div.insertBefore(df, s2);
-  s1.firstChild.data = "bar"; // This should *not* create a record.
-  t1.data = "Hello the whole "; // This should create a record.
-}
-
-function testChildList5() {
-  div.textContent = null;
-  var c1 = div.appendChild(document.createElement("div"));
-  var c2 = document.createElement("div");
-  var div2 = document.createElement("div");
-  var c3 = div2.appendChild(document.createElement("div"));
-  var c4 = document.createElement("div");
-  var c5 = document.createElement("div");
-  var df = document.createDocumentFragment();
-  var emptyDF = document.createDocumentFragment();
-  var dfc1 = df.appendChild(document.createElement("div"));
-  var dfc2 = df.appendChild(document.createElement("div"));
-  var dfc3 = df.appendChild(document.createElement("div"));
-  m = new M(function(records, observer) {
-      is(records.length, 6 , "");
-      is(records[0].removedNodes.length, 1, "Should have got removedNodes");
-      is(records[0].removedNodes[0], c1, "");
-      is(records[0].addedNodes.length, 1, "Should have got addedNodes");
-      is(records[0].addedNodes[0], c2, "");
-      is(records[0].previousSibling, null, "");
-      is(records[0].nextSibling, null, "");
-      is(records[1].removedNodes.length, 1, "Should have got removedNodes");
-      is(records[1].removedNodes[0], c3, "");
-      is(records[1].addedNodes.length, 0, "Shouldn't have got addedNodes");
-      is(records[1].previousSibling, null, "");
-      is(records[1].nextSibling, null, "");
-      is(records[2].removedNodes.length, 1, "Should have got removedNodes");
-      is(records[2].removedNodes[0], c2, "");
-      is(records[2].addedNodes.length, 1, "Should have got addedNodes");
-      is(records[2].addedNodes[0], c3, "");
-      is(records[2].previousSibling, null, "");
-      is(records[2].nextSibling, null, "");
-      // Check document fragment handling
-      is(records[5].removedNodes.length, 1, "");
-      is(records[5].removedNodes[0], c4, "");
-      is(records[5].addedNodes.length, 3, "");
-      is(records[5].addedNodes[0], dfc1, "");
-      is(records[5].addedNodes[1], dfc2, "");
-      is(records[5].addedNodes[2], dfc3, "");
-      is(records[5].previousSibling, c3, "");
-      is(records[5].nextSibling, c5, "");
-      observer.disconnect();
-      then(testAdoptNode);
-      m = null;
-    });
-  m.observe(div, { childList: true, subtree: true });
-  m.observe(div2, { childList: true, subtree: true });
-  div.replaceChild(c2, c1);
-  div.replaceChild(c3, c2);
-  div.appendChild(c4);
-  div.appendChild(c5);
-  div.replaceChild(df, c4);
-  div.appendChild(emptyDF); // empty document shouldn't cause mutation records
-}
-
-function testAdoptNode() {
-  var d1 = document.implementation.createHTMLDocument(null);
-  var d2 = document.implementation.createHTMLDocument(null);
-  var addedNode;
-  m = new M(function(records, observer) {
-      is(records.length, 3, "Should have 2 records");
-      is(records[0].target.ownerDocument, d1, "ownerDocument should be the initial document")
-      is(records[1].target.ownerDocument, d2, "ownerDocument should be the new document");
-      is(records[2].type, "attributes", "Should have got attribute mutation")
-      is(records[2].attributeName, "foo", "Should have got foo attribute mutation")
-      observer.disconnect();
-      then(testOuterHTML);
-      m = null;
-    });
-  m.observe(d1, { childList: true, subtree: true, attributes: true });
-  d2.body.appendChild(d1.body);
-  addedNode = d2.body.lastChild.appendChild(d2.createElement("div"));
-  addedNode.setAttribute("foo", "bar");
-}
-
-function testOuterHTML() {
-  var doc = document.implementation.createHTMLDocument(null);
-  var d1 = doc.body.appendChild(document.createElement("div"));
-  var d2 = doc.body.appendChild(document.createElement("div"));
-  var d3 = doc.body.appendChild(document.createElement("div"));
-  var d4 = doc.body.appendChild(document.createElement("div"));
-  m = new M(function(records, observer) {
-      is(records.length, 4, "Should have 1 record");
-      is(records[0].removedNodes.length, 1, "Should have 1 removed nodes");
-      is(records[0].addedNodes.length, 2, "Should have 2 added nodes");
-      is(records[0].previousSibling, null, "");
-      is(records[0].nextSibling, d2, "");
-      is(records[1].removedNodes.length, 1, "Should have 1 removed nodes");
-      is(records[1].addedNodes.length, 2, "Should have 2 added nodes");
-      is(records[1].previousSibling, records[0].addedNodes[1], "");
-      is(records[1].nextSibling, d3, "");
-      is(records[2].removedNodes.length, 1, "Should have 1 removed nodes");
-      is(records[2].addedNodes.length, 2, "Should have 2 added nodes");
-      is(records[2].previousSibling, records[1].addedNodes[1], "");
-      is(records[2].nextSibling, d4, "");
-      is(records[3].removedNodes.length, 1, "Should have 1 removed nodes");
-      is(records[3].addedNodes.length, 0);
-      is(records[3].previousSibling, records[2].addedNodes[1], "");
-      is(records[3].nextSibling, null, "");
-      observer.disconnect();
-      then(testInsertAdjacentHTML);
-      m = null;
-    });
-  m.observe(doc, { childList: true, subtree: true });
-  d1.outerHTML = "<div>1</div><div>1</div>";
-  d2.outerHTML = "<div>2</div><div>2</div>";
-  d3.outerHTML = "<div>3</div><div>3</div>";
-  d4.outerHTML = "";
-}
-
-function testInsertAdjacentHTML() {
-  var doc = document.implementation.createHTMLDocument(null);
-  var d1 = doc.body.appendChild(document.createElement("div"));
-  var d2 = doc.body.appendChild(document.createElement("div"));
-  var d3 = doc.body.appendChild(document.createElement("div"));
-  var d4 = doc.body.appendChild(document.createElement("div"));
-  m = new M(function(records, observer) {
-      is(records.length, 4, "");
-      is(records[0].target, doc.body, "");
-      is(records[0].previousSibling, null, "");
-      is(records[0].nextSibling, d1, "");
-      is(records[1].target, d2, "");
-      is(records[1].previousSibling, null, "");
-      is(records[1].nextSibling, null, "");
-      is(records[2].target, d3, "");
-      is(records[2].previousSibling, null, "");
-      is(records[2].nextSibling, null, "");
-      is(records[3].target, doc.body, "");
-      is(records[3].previousSibling, d4, "");
-      is(records[3].nextSibling, null, "");      
-      observer.disconnect();
-      then(testSyncXHR);
-      m = null;
-    });
-  m.observe(doc, { childList: true, subtree: true });
-  d1.insertAdjacentHTML("beforebegin", "<div></div><div></div>");
-  d2.insertAdjacentHTML("afterbegin", "<div></div><div></div>");
-  d3.insertAdjacentHTML("beforeend", "<div></div><div></div>");
-  d4.insertAdjacentHTML("afterend", "<div></div><div></div>");
-}
-
-
-var callbackHandled = false;
-
-function testSyncXHR() {
-  div.textContent = null;
-  m = new M(function(records, observer) {
-      is(records.length, 1, "");
-      is(records[0].addedNodes.length, 1, "");
-      callbackHandled = true;
-      observer.disconnect();
-      m = null;
-    });
-  m.observe(div, { childList: true, subtree: true });
-  div.innerHTML = "<div>hello</div>";
-  var x = new XMLHttpRequest();
-  x.open("GET", window.location, false);
-  x.send();
-  ok(!callbackHandled, "Shouldn't have called the mutation callback!");
-  setTimeout(testSyncXHR2, 0);
-}
-
-function testSyncXHR2() {
-  ok(callbackHandled, "Should have called the mutation callback!");
-  then(testTakeRecords);
-}
-
-function testTakeRecords() {
-  var s = "<span>1</span><span>2</span>";
-  div.innerHTML = s;
-  var takenRecords;
-  m = new M(function(records, observer) {
-      is(records.length, 3, "Should have got 3 records");
-
-      is(records[0].type, "attributes", "Should have got attributes");
-      is(records[0].attributeName, "foo", "");
-      is(records[0].attributeNamespace, null, "");
-      is(records[0].prevValue, null, "");
-      is(records[1].type, "childList", "Should have got childList");
-      is(records[1].removedNodes.length, 2, "Should have got removedNodes");
-      is(records[1].addedNodes.length, 2, "Should have got addedNodes");
-      is(records[2].type, "attributes", "Should have got attributes");
-      is(records[2].attributeName, "foo", "");
-      
-      is(records.length, takenRecords.length, "Should have had similar mutations");
-      is(records[0].type, takenRecords[0].type, "Should have had similar mutations");
-      is(records[1].type, takenRecords[1].type, "Should have had similar mutations");
-      is(records[2].type, takenRecords[2].type, "Should have had similar mutations");
-      
-      is(records[1].removedNodes.length, takenRecords[1].removedNodes.length, "Should have had similar mutations");
-      is(records[1].addedNodes.length, takenRecords[1].addedNodes.length, "Should have had similar mutations");
-
-      is(m.takeRecords().length, 0, "Shouldn't have any records");
-      observer.disconnect();
-      then(testMutationObserverAndEvents);
-      m = null;
-    });
-  m.observe(div, { childList: true, attributes: true });
-  div.setAttribute("foo", "bar");
-  div.innerHTML = s;
-  div.removeAttribute("foo");
-  takenRecords = m.takeRecords();
-  div.setAttribute("foo", "bar");
-  div.innerHTML = s;
-  div.removeAttribute("foo");
-}
-
-function testTakeRecords() {
-  function mutationListener(e) {
-    ++mutationEventCount;
-    is(e.attrChange, MutationEvent.ADDITION, "unexpected change");
-  }
-
-  m = new M(function(records, observer) {
-      is(records.length, 2, "Should have got 2 records");
-      is(records[0].type, "attributes", "Should have got attributes");
-      is(records[0].attributeName, "foo", "");
-      is(records[0].oldValue, null, "");
-      is(records[1].type, "attributes", "Should have got attributes");
-      is(records[1].attributeName, "foo", "");
-      is(records[1].oldValue, "bar", "");
-      observer.disconnect();
-      div.removeEventListener("DOMAttrModified", mutationListener);
-      then(testExpandos);
-      m = null;
-    });
-  m.observe(div, { attributes: true, attributeOldValue: true });
-  // Note, [0] points to a mutation observer which is there for a leak test!
-  ok(SpecialPowers.compare(SpecialPowers.wrap(div).getBoundMutationObservers()[1], m));
-  var mutationEventCount = 0;
-  div.addEventListener("DOMAttrModified", mutationListener);
-  div.setAttribute("foo", "bar");
-  div.setAttribute("foo", "bar");
-  is(mutationEventCount, 1, "Should have got only one mutation event!");
-}
-
-function testExpandos() {
-  var m2 = new M(function(records, observer) {
-    is(observer.expandoProperty, true);
-    observer.disconnect();
-    then(testOutsideShadowDOM);
-  });
-  m2.expandoProperty = true;
-  m2.observe(div, { attributes: true });
-  m2 = null;
-  if (SpecialPowers) {
-    // Run GC several times to see if the expando property disappears.
-
-    SpecialPowers.gc();
-    SpecialPowers.gc();
-    SpecialPowers.gc();
-    SpecialPowers.gc();
-  }
-  div.setAttribute("foo", "bar2");
-}
-
-function testOutsideShadowDOM() {
-  var m = new M(function(records, observer) {
-    is(records.length, 1);
-    is(records[0].type, "attributes", "Should have got attributes");
-    observer.disconnect();
-    then(testInsideShadowDOM);
-  });
-  m.observe(div, {
-      attributes: true,
-      childList: true,
-      characterData: true,
-      subtree: true
-    })
-  var sr = div.createShadowRoot();
-  sr.innerHTML = "<div" + ">text</" + "div>";
-  sr.firstChild.setAttribute("foo", "bar");
-  sr.firstChild.firstChild.data = "text2";
-  sr.firstChild.appendChild(document.createElement("div"));
-  div.setAttribute("foo", "bar");
-}
-
-function testInsideShadowDOM() {
-  var m = new M(function(records, observer) {
-    is(records.length, 4);
-    is(records[0].type, "childList");
-    is(records[1].type, "attributes");
-    is(records[2].type, "characterData");
-    is(records[3].type, "childList");
-    observer.disconnect();
-    then(testMarquee);
-  });
-  var sr = div.createShadowRoot();
-  m.observe(sr, {
-      attributes: true,
-      childList: true,
-      characterData: true,
-      subtree: true
-    });
-
-  sr.innerHTML = "<div" + ">text</" + "div>";
-  sr.firstChild.setAttribute("foo", "bar");
-  sr.firstChild.firstChild.data = "text2";
-  sr.firstChild.appendChild(document.createElement("div"));
-  div.setAttribute("foo", "bar2");
-
-}
-
-function testMarquee() {
-  var m = new M(function(records, observer) {
-    is(records.length, 1);
-    is(records[0].type, "attributes");
-    is(records[0].attributeName, "ok");
-    is(records[0].oldValue, null);
-    observer.disconnect();
-    then(testStyleCreate);
-  });
-  var marquee = document.createElement("marquee");
-  m.observe(marquee, {
-    attributes: true,
-    attributeOldValue: true,
-    childList: true,
-    characterData: true,
-    subtree: true
-  });
-  document.body.appendChild(marquee);
-  setTimeout(function() {marquee.setAttribute("ok", "ok")}, 500);
-}
-
-function testStyleCreate() {
-  m = new M(function(records, observer) {
-    is(records.length, 1, "number of records");
-    is(records[0].type, "attributes", "record.type");
-    is(records[0].attributeName, "style", "record.attributeName");
-    is(records[0].oldValue, null, "record.oldValue");
-    isnot(div.getAttribute("style"), null, "style attribute after creation");
-    observer.disconnect();
-    m = null;
-    div.removeAttribute("style");
-    then(testStyleModify);
-  });
-  m.observe(div, { attributes: true, attributeOldValue: true });
-  is(div.getAttribute("style"), null, "style attribute before creation");
-  div.style.color = "blue";
-}
-
-function testStyleModify() {
-  div.style.color = "yellow";
-  m = new M(function(records, observer) {
-    is(records.length, 1, "number of records");
-    is(records[0].type, "attributes", "record.type");
-    is(records[0].attributeName, "style", "record.attributeName");
-    isnot(div.getAttribute("style"), null, "style attribute after modification");
-    observer.disconnect();
-    m = null;
-    div.removeAttribute("style");
-    then(testStyleRead);
-  });
-  m.observe(div, { attributes: true });
-  isnot(div.getAttribute("style"), null, "style attribute before modification");
-  div.style.color = "blue";
-}
-
-function testStyleRead() {
-  m = new M(function(records, observer) {
-    is(records.length, 1, "number of records");
-    is(records[0].type, "attributes", "record.type");
-    is(records[0].attributeName, "data-test", "record.attributeName");
-    is(div.getAttribute("style"), null, "style attribute after read");
-    observer.disconnect();
-    div.removeAttribute("data-test");
-    m = null;
-    then(testStyleRemoveProperty);
-  });
-  m.observe(div, { attributes: true });
-  is(div.getAttribute("style"), null, "style attribute before read");
-  var value = div.style.color;  // shouldn't generate any mutation records
-  div.setAttribute("data-test", "a");
-}
-
-function testStyleRemoveProperty() {
-  div.style.color = "blue";
-  m = new M(function(records, observer) {
-    is(records.length, 1, "number of records");
-    is(records[0].type, "attributes", "record.type");
-    is(records[0].attributeName, "style", "record.attributeName");
-    isnot(div.getAttribute("style"), null, "style attribute after successful removeProperty");
-    observer.disconnect();
-    m = null;
-    div.removeAttribute("style");
-    then(testStyleRemoveProperty2);
-  });
-  m.observe(div, { attributes: true });
-  isnot(div.getAttribute("style"), null, "style attribute before successful removeProperty");
-  div.style.removeProperty("color");
-}
-
-function testStyleRemoveProperty2() {
-  m = new M(function(records, observer) {
-    is(records.length, 1, "number of records");
-    is(records[0].type, "attributes", "record.type");
-    is(records[0].attributeName, "data-test", "record.attributeName");
-    is(div.getAttribute("style"), null, "style attribute after unsuccessful removeProperty");
-    observer.disconnect();
-    m = null;
-    div.removeAttribute("data-test");
-    then(testAttributeRecordMerging1);
-  });
-  m.observe(div, { attributes: true });
-  is(div.getAttribute("style"), null, "style attribute before unsuccessful removeProperty");
-  div.style.removeProperty("color");  // shouldn't generate any mutation records
-  div.setAttribute("data-test", "a");
-}
-
-function testAttributeRecordMerging1() {
-  ok(true, "testAttributeRecordMerging1");
-  var m = new M(function(records, observer) {
-    is(records.length, 2);
-    is(records[0].type, "attributes");
-    is(records[0].target, div);
-    is(records[0].attributeName, "foo");
-    is(records[0].attributeNamespace, null);
-    is(records[0].oldValue, null);
-
-    is(records[1].type, "attributes");
-    is(records[1].target, div.firstChild);
-    is(records[1].attributeName, "foo");
-    is(records[1].attributeNamespace, null);
-    is(records[1].oldValue, null);
-    observer.disconnect();
-    div.innerHTML = "";
-    div.removeAttribute("foo");
-    then(testAttributeRecordMerging2);
-  });
-  m.observe(div, {
-      attributes: true,
-      subtree: true
-    });
-  SpecialPowers.wrap(m).mergeAttributeRecords = true;
-
-  div.setAttribute("foo", "bar_1");
-  div.setAttribute("foo", "bar_2");
-  div.innerHTML = "<div></div>";
-  div.firstChild.setAttribute("foo", "bar_1");
-  div.firstChild.setAttribute("foo", "bar_2");
-}
-
-function testAttributeRecordMerging2() {
-  ok(true, "testAttributeRecordMerging2");
-  var m = new M(function(records, observer) {
-    is(records.length, 2);
-    is(records[0].type, "attributes");
-    is(records[0].target, div);
-    is(records[0].attributeName, "foo");
-    is(records[0].attributeNamespace, null);
-    is(records[0].oldValue, "initial");
-
-    is(records[1].type, "attributes");
-    is(records[1].target, div.firstChild);
-    is(records[1].attributeName, "foo");
-    is(records[1].attributeNamespace, null);
-    is(records[1].oldValue, "initial");
-    observer.disconnect();
-    div.innerHTML = "";
-    div.removeAttribute("foo");
-    then(testAttributeRecordMerging3);
-  });
-
-  div.setAttribute("foo", "initial");
-  div.innerHTML = "<div></div>";
-  div.firstChild.setAttribute("foo", "initial");
-  m.observe(div, {
-      attributes: true,
-      subtree: true,
-      attributeOldValue: true
-    });
-  SpecialPowers.wrap(m).mergeAttributeRecords = true;
-
-  div.setAttribute("foo", "bar_1");
-  div.setAttribute("foo", "bar_2");
-  div.firstChild.setAttribute("foo", "bar_1");
-  div.firstChild.setAttribute("foo", "bar_2");
-}
-
-function testAttributeRecordMerging3() {
-  ok(true, "testAttributeRecordMerging3");
-  var m = new M(function(records, observer) {
-    is(records.length, 4);
-    is(records[0].type, "attributes");
-    is(records[0].target, div);
-    is(records[0].attributeName, "foo");
-    is(records[0].attributeNamespace, null);
-    is(records[0].oldValue, "initial");
-
-    is(records[1].type, "attributes");
-    is(records[1].target, div.firstChild);
-    is(records[1].attributeName, "foo");
-    is(records[1].attributeNamespace, null);
-    is(records[1].oldValue, "initial");
-    
-    is(records[2].type, "attributes");
-    is(records[2].target, div);
-    is(records[2].attributeName, "foo");
-    is(records[2].attributeNamespace, null);
-    is(records[2].oldValue, "bar_1");
-
-    is(records[3].type, "attributes");
-    is(records[3].target, div.firstChild);
-    is(records[3].attributeName, "foo");
-    is(records[3].attributeNamespace, null);
-    is(records[3].oldValue, "bar_1");
-
-    observer.disconnect();
-    div.innerHTML = "";
-    div.removeAttribute("foo");
-    then(testAttributeRecordMerging4);
-  });
-
-  div.setAttribute("foo", "initial");
-  div.innerHTML = "<div></div>";
-  div.firstChild.setAttribute("foo", "initial");
-  m.observe(div, {
-      attributes: true,
-      subtree: true,
-      attributeOldValue: true
-    });
-  SpecialPowers.wrap(m).mergeAttributeRecords = true;
-
-  // No merging should happen.
-  div.setAttribute("foo", "bar_1");
-  div.firstChild.setAttribute("foo", "bar_1");
-  div.setAttribute("foo", "bar_2");
-  div.firstChild.setAttribute("foo", "bar_2");
-}
-
-function testAttributeRecordMerging4() {
-  ok(true, "testAttributeRecordMerging4");
-  var m = new M(function(records, observer) {
-  });
-
-  div.setAttribute("foo", "initial");
-  div.innerHTML = "<div></div>";
-  div.firstChild.setAttribute("foo", "initial");
-  m.observe(div, {
-      attributes: true,
-      subtree: true,
-      attributeOldValue: true
-    });
-  SpecialPowers.wrap(m).mergeAttributeRecords = true;
-
-  div.setAttribute("foo", "bar_1");
-  div.setAttribute("foo", "bar_2");
-  div.firstChild.setAttribute("foo", "bar_1");
-  div.firstChild.setAttribute("foo", "bar_2");
-
-  var records = m.takeRecords();
-
-  is(records.length, 2);
-  is(records[0].type, "attributes");
-  is(records[0].target, div);
-  is(records[0].attributeName, "foo");
-  is(records[0].attributeNamespace, null);
-  is(records[0].oldValue, "initial");
-
-  is(records[1].type, "attributes");
-  is(records[1].target, div.firstChild);
-  is(records[1].attributeName, "foo");
-  is(records[1].attributeNamespace, null);
-  is(records[1].oldValue, "initial");
-  m.disconnect();
-  div.innerHTML = "";
-  div.removeAttribute("foo");
-  then(testChromeOnly);
-}
-
-function testChromeOnly() {
-  // Content can't access nativeAnonymousChildList
-  try {
-    var mo = new M(function(records, observer) { });
-    mo.observe(div, { nativeAnonymousChildList: true });
-    ok(false, "Should have thrown when trying to observe with chrome-only init");
-  } catch (e) {
-    ok(true, "Throws when trying to observe with chrome-only init");
-  }
-
-  then();
-}
-
-SimpleTest.waitForExplicitFinish();
-
-</script>
-</pre>
-<div id="log">
-</div>
-</body>
-</html>
diff --git a/dom/canvas/test/webgl-conf/checkout/deqp/temp_externs/webkit_css.js b/dom/canvas/test/webgl-conf/checkout/deqp/temp_externs/webkit_css.js
deleted file mode 100644
index 60841f8e2..000000000
--- a/dom/canvas/test/webgl-conf/checkout/deqp/temp_externs/webkit_css.js
+++ /dev/null
@@ -1,456 +0,0 @@
-/*
- * Copyright 2008 The Closure Compiler Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @fileoverview Definitions for WebKit's custom CSS properties. Copied from:
- * {@link
- * http://trac.webkit.org/browser/trunk/Source/WebCore/css/CSSPropertyNames.in}
- *
- * If you make changes to this file, notice that every property appears
- * twice: once as an uppercase name and once as a lowercase name.
- * WebKit allows both. The uppercase version is preferred.
- *
- * @externs
- * @author nicksantos@google.com (Nick Santos)
- */
-
-/** @type {string} */ CSSProperties.prototype.WebkitAlignContent;
-/** @type {string} */ CSSProperties.prototype.WebkitAlignItems;
-/** @type {string} */ CSSProperties.prototype.WebkitAlignSelf;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimation;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationDelay;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationDirection;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationDuration;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationFillMode;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationIterationCount;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationName;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationPlayState;
-/** @type {string} */ CSSProperties.prototype.WebkitAnimationTimingFunction;
-/** @type {string} */ CSSProperties.prototype.WebkitAppearance;
-/** @type {string} */ CSSProperties.prototype.WebkitAppRegion;
-/** @type {string} */ CSSProperties.prototype.WebkitAspectRatio;
-/** @type {string} */ CSSProperties.prototype.WebkitBackfaceVisibility;
-/** @type {string} */ CSSProperties.prototype.WebkitBackgroundClip;
-/** @type {string} */ CSSProperties.prototype.WebkitBackgroundComposite;
-/** @type {string} */ CSSProperties.prototype.WebkitBackgroundOrigin;
-/** @type {string} */ CSSProperties.prototype.WebkitBackgroundSize;
-/** @type {string} */ CSSProperties.prototype.WebkitBinding;
-/** @type {string} */ CSSProperties.prototype.WebkitBlendMode;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderAfterColor;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderAfterStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderAfterWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBeforeColor;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBeforeStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBeforeWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBottomLeftRadius;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderBottomRightRadius;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderEnd;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderEndColor;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderEndStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderEndWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderFit;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderHorizontalSpacing;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderImage;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderRadius;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderStart;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderStartColor;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderStartStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderStartWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderTopLeftRadius;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderTopRightRadius;
-/** @type {string} */ CSSProperties.prototype.WebkitBorderVerticalSpacing;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxAlign;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxDecorationBreak;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxDirection;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxFlex;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxFlexGroup;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxLines;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxOrdinalGroup;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxOrient;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxPack;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxReflect;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxShadow;
-/** @type {string} */ CSSProperties.prototype.WebkitBoxSizing;
-/** @type {string} */ CSSProperties.prototype.WebkitColorCorrection;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnAxis;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnBreakAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnBreakBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnBreakInside;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnCount;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnGap;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnProgression;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnRule;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnRuleColor;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnRuleStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnRuleWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitColumns;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnSpan;
-/** @type {string} */ CSSProperties.prototype.WebkitColumnWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitDashboardRegion;
-/** @type {string} */ CSSProperties.prototype.WebkitFilter;
-/** @type {string} */ CSSProperties.prototype.WebkitFlex;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexBasis;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexDirection;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexFlow;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexGrow;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexShrink;
-/** @type {string} */ CSSProperties.prototype.WebkitFlexWrap;
-/** @type {string} */ CSSProperties.prototype.WebkitFlowFrom;
-/** @type {string} */ CSSProperties.prototype.WebkitFlowInto;
-/** @type {string} */ CSSProperties.prototype.WebkitFontSizeDelta;
-/** @type {string} */ CSSProperties.prototype.WebkitFontSmoothing;
-/** @type {string} */ CSSProperties.prototype.WebkitGridColumn;
-/** @type {string} */ CSSProperties.prototype.WebkitGridColumns;
-/** @type {string} */ CSSProperties.prototype.WebkitGridRow;
-/** @type {string} */ CSSProperties.prototype.WebkitGridRows;
-/** @type {string} */ CSSProperties.prototype.WebkitHighlight;
-/** @type {string} */ CSSProperties.prototype.WebkitHyphenateCharacter;
-/** @type {string} */ CSSProperties.prototype.WebkitHyphenateLimitAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitHyphenateLimitBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitHyphenateLimitLines;
-/** @type {string} */ CSSProperties.prototype.WebkitHyphens;
-/** @type {string} */ CSSProperties.prototype.WebkitJustifyContent;
-/** @type {string} */ CSSProperties.prototype.WebkitLineAlign;
-/** @type {string} */ CSSProperties.prototype.WebkitLineBoxContain;
-/** @type {string} */ CSSProperties.prototype.WebkitLineBreak;
-/** @type {string} */ CSSProperties.prototype.WebkitLineClamp;
-/** @type {string} */ CSSProperties.prototype.WebkitLineGrid;
-/** @type {string} */ CSSProperties.prototype.WebkitLineSnap;
-/** @type {string} */ CSSProperties.prototype.WebkitLocale;
-/** @type {string} */ CSSProperties.prototype.WebkitLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.WebkitLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginAfterCollapse;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginBeforeCollapse;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginBottomCollapse;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginCollapse;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginEnd;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginStart;
-/** @type {string} */ CSSProperties.prototype.WebkitMarginTopCollapse;
-/** @type {string} */ CSSProperties.prototype.WebkitMarquee;
-/** @type {string} */ CSSProperties.prototype.WebkitMarqueeDirection;
-/** @type {string} */ CSSProperties.prototype.WebkitMarqueeIncrement;
-/** @type {string} */ CSSProperties.prototype.WebkitMarqueeRepetition;
-/** @type {string} */ CSSProperties.prototype.WebkitMarqueeSpeed;
-/** @type {string} */ CSSProperties.prototype.WebkitMarqueeStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitMask;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskAttachment;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImage;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImageOutset;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImageRepeat;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImageSlice;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImageSource;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskBoxImageWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskClip;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskComposite;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskImage;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskOrigin;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskPosition;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskPositionX;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskPositionY;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskRepeat;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskRepeatX;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskRepeatY;
-/** @type {string} */ CSSProperties.prototype.WebkitMaskSize;
-/** @type {string} */
-CSSProperties.prototype.WebkitMatchNearestMailBlockquoteColor;
-/** @type {string} */ CSSProperties.prototype.WebkitMaxLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.WebkitMaxLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitMinLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.WebkitMinLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitNbspMode;
-/** @type {string} */ CSSProperties.prototype.WebkitOrder;
-/** @type {string} */ CSSProperties.prototype.WebkitOverflowScrolling;
-/** @type {string} */ CSSProperties.prototype.WebkitPaddingAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitPaddingBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitPaddingEnd;
-/** @type {string} */ CSSProperties.prototype.WebkitPaddingStart;
-/** @type {string} */ CSSProperties.prototype.WebkitPerspective;
-/** @type {string} */ CSSProperties.prototype.WebkitPerspectiveOrigin;
-/** @type {string} */ CSSProperties.prototype.WebkitPerspectiveOriginX;
-/** @type {string} */ CSSProperties.prototype.WebkitPerspectiveOriginY;
-/** @type {string} */ CSSProperties.prototype.WebkitPrintColorAdjust;
-/** @type {string} */ CSSProperties.prototype.WebkitRegionBreakAfter;
-/** @type {string} */ CSSProperties.prototype.WebkitRegionBreakBefore;
-/** @type {string} */ CSSProperties.prototype.WebkitRegionBreakInside;
-/** @type {string} */ CSSProperties.prototype.WebkitRegionOverflow;
-/** @type {string} */ CSSProperties.prototype.WebkitRtlOrdering;
-/** @type {string} */ CSSProperties.prototype.WebkitRubyPosition;
-/** @type {string} */ CSSProperties.prototype.WebkitShapeInside;
-/** @type {string} */ CSSProperties.prototype.WebkitShapeMargin;
-/** @type {string} */ CSSProperties.prototype.WebkitShapeOutside;
-/** @type {string} */ CSSProperties.prototype.WebkitShapePadding;
-/** @type {string} */ CSSProperties.prototype.WebkitTapHighlightColor;
-/** @type {string} */ CSSProperties.prototype.WebkitTextAlignLast;
-/** @type {string} */ CSSProperties.prototype.WebkitTextCombine;
-/** @type {string} */ CSSProperties.prototype.WebkitTextDecorationLine;
-/** @type {string} */ CSSProperties.prototype.WebkitTextDecorationsInEffect;
-/** @type {string} */ CSSProperties.prototype.WebkitTextDecorationStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitTextEmphasis;
-/** @type {string} */ CSSProperties.prototype.WebkitTextEmphasisColor;
-/** @type {string} */ CSSProperties.prototype.WebkitTextEmphasisPosition;
-/** @type {string} */ CSSProperties.prototype.WebkitTextEmphasisStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitTextFillColor;
-/** @type {string} */ CSSProperties.prototype.WebkitTextOrientation;
-/** @type {string} */ CSSProperties.prototype.WebkitTextSecurity;
-/** @type {string} */ CSSProperties.prototype.WebkitTextSizeAdjust;
-/** @type {string} */ CSSProperties.prototype.WebkitTextStroke;
-/** @type {string} */ CSSProperties.prototype.WebkitTextStrokeColor;
-/** @type {string} */ CSSProperties.prototype.WebkitTextStrokeWidth;
-/** @type {string} */ CSSProperties.prototype.WebkitTransform;
-/** @type {string} */ CSSProperties.prototype.WebkitTransformOrigin;
-/** @type {string} */ CSSProperties.prototype.WebkitTransformOriginX;
-/** @type {string} */ CSSProperties.prototype.WebkitTransformOriginY;
-/** @type {string} */ CSSProperties.prototype.WebkitTransformOriginZ;
-/** @type {string} */ CSSProperties.prototype.WebkitTransformStyle;
-/** @type {string} */ CSSProperties.prototype.WebkitTransition;
-/** @type {string} */ CSSProperties.prototype.WebkitTransitionDelay;
-/** @type {string} */ CSSProperties.prototype.WebkitTransitionDuration;
-/** @type {string} */ CSSProperties.prototype.WebkitTransitionProperty;
-/** @type {string} */ CSSProperties.prototype.WebkitTransitionRepeatCount;
-/** @type {string} */ CSSProperties.prototype.WebkitTransitionTimingFunction;
-/** @type {string} */ CSSProperties.prototype.WebkitUserDrag;
-/** @type {string} */ CSSProperties.prototype.WebkitUserModify;
-/** @type {string} */ CSSProperties.prototype.WebkitUserSelect;
-/** @type {string} */ CSSProperties.prototype.WebkitWrap;
-/** @type {string} */ CSSProperties.prototype.WebkitWrapFlow;
-/** @type {string} */ CSSProperties.prototype.WebkitWrapThrough;
-/** @type {string} */ CSSProperties.prototype.WebkitWritingMode;
-
-// WebKit also adds bindings for the lowercase versions of these properties.
-// The uppercase version is preferred.
-
-/** @type {string} */ CSSProperties.prototype.webkitAlignContent;
-/** @type {string} */ CSSProperties.prototype.webkitAlignItems;
-/** @type {string} */ CSSProperties.prototype.webkitAlignSelf;
-/** @type {string} */ CSSProperties.prototype.webkitAnimation;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationDelay;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationDirection;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationDuration;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationFillMode;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationIterationCount;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationName;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationPlayState;
-/** @type {string} */ CSSProperties.prototype.webkitAnimationTimingFunction;
-/** @type {string} */ CSSProperties.prototype.webkitAppearance;
-/** @type {string} */ CSSProperties.prototype.webkitAppRegion;
-/** @type {string} */ CSSProperties.prototype.webkitAspectRatio;
-/** @type {string} */ CSSProperties.prototype.webkitBackfaceVisibility;
-/** @type {string} */ CSSProperties.prototype.webkitBackgroundClip;
-/** @type {string} */ CSSProperties.prototype.webkitBackgroundComposite;
-/** @type {string} */ CSSProperties.prototype.webkitBackgroundOrigin;
-/** @type {string} */ CSSProperties.prototype.webkitBackgroundSize;
-/** @type {string} */ CSSProperties.prototype.webkitBinding;
-/** @type {string} */ CSSProperties.prototype.webkitBlendMode;
-/** @type {string} */ CSSProperties.prototype.webkitBorderAfter;
-/** @type {string} */ CSSProperties.prototype.webkitBorderAfterColor;
-/** @type {string} */ CSSProperties.prototype.webkitBorderAfterStyle;
-/** @type {string} */ CSSProperties.prototype.webkitBorderAfterWidth;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBefore;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBeforeColor;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBeforeStyle;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBeforeWidth;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBottomLeftRadius;
-/** @type {string} */ CSSProperties.prototype.webkitBorderBottomRightRadius;
-/** @type {string} */ CSSProperties.prototype.webkitBorderEnd;
-/** @type {string} */ CSSProperties.prototype.webkitBorderEndColor;
-/** @type {string} */ CSSProperties.prototype.webkitBorderEndStyle;
-/** @type {string} */ CSSProperties.prototype.webkitBorderEndWidth;
-/** @type {string} */ CSSProperties.prototype.webkitBorderFit;
-/** @type {string} */ CSSProperties.prototype.webkitBorderHorizontalSpacing;
-/** @type {string} */ CSSProperties.prototype.webkitBorderImage;
-/** @type {string} */ CSSProperties.prototype.webkitBorderRadius;
-/** @type {string} */ CSSProperties.prototype.webkitBorderStart;
-/** @type {string} */ CSSProperties.prototype.webkitBorderStartColor;
-/** @type {string} */ CSSProperties.prototype.webkitBorderStartStyle;
-/** @type {string} */ CSSProperties.prototype.webkitBorderStartWidth;
-/** @type {string} */ CSSProperties.prototype.webkitBorderTopLeftRadius;
-/** @type {string} */ CSSProperties.prototype.webkitBorderTopRightRadius;
-/** @type {string} */ CSSProperties.prototype.webkitBorderVerticalSpacing;
-/** @type {string} */ CSSProperties.prototype.webkitBoxAlign;
-/** @type {string} */ CSSProperties.prototype.webkitBoxDecorationBreak;
-/** @type {string} */ CSSProperties.prototype.webkitBoxDirection;
-/** @type {string} */ CSSProperties.prototype.webkitBoxFlex;
-/** @type {string} */ CSSProperties.prototype.webkitBoxFlexGroup;
-/** @type {string} */ CSSProperties.prototype.webkitBoxLines;
-/** @type {string} */ CSSProperties.prototype.webkitBoxOrdinalGroup;
-/** @type {string} */ CSSProperties.prototype.webkitBoxOrient;
-/** @type {string} */ CSSProperties.prototype.webkitBoxPack;
-/** @type {string} */ CSSProperties.prototype.webkitBoxReflect;
-/** @type {string} */ CSSProperties.prototype.webkitBoxShadow;
-/** @type {string} */ CSSProperties.prototype.webkitBoxSizing;
-/** @type {string} */ CSSProperties.prototype.webkitColorCorrection;
-/** @type {string} */ CSSProperties.prototype.webkitColumnAxis;
-/** @type {string} */ CSSProperties.prototype.webkitColumnBreakAfter;
-/** @type {string} */ CSSProperties.prototype.webkitColumnBreakBefore;
-/** @type {string} */ CSSProperties.prototype.webkitColumnBreakInside;
-/** @type {string} */ CSSProperties.prototype.webkitColumnCount;
-/** @type {string} */ CSSProperties.prototype.webkitColumnGap;
-/** @type {string} */ CSSProperties.prototype.webkitColumnProgression;
-/** @type {string} */ CSSProperties.prototype.webkitColumnRule;
-/** @type {string} */ CSSProperties.prototype.webkitColumnRuleColor;
-/** @type {string} */ CSSProperties.prototype.webkitColumnRuleStyle;
-/** @type {string} */ CSSProperties.prototype.webkitColumnRuleWidth;
-/** @type {string} */ CSSProperties.prototype.webkitColumns;
-/** @type {string} */ CSSProperties.prototype.webkitColumnSpan;
-/** @type {string} */ CSSProperties.prototype.webkitColumnWidth;
-/** @type {string} */ CSSProperties.prototype.webkitDashboardRegion;
-/** @type {string} */ CSSProperties.prototype.webkitFilter;
-/** @type {string} */ CSSProperties.prototype.webkitFlex;
-/** @type {string} */ CSSProperties.prototype.webkitFlexBasis;
-/** @type {string} */ CSSProperties.prototype.webkitFlexDirection;
-/** @type {string} */ CSSProperties.prototype.webkitFlexFlow;
-/** @type {string} */ CSSProperties.prototype.webkitFlexGrow;
-/** @type {string} */ CSSProperties.prototype.webkitFlexShrink;
-/** @type {string} */ CSSProperties.prototype.webkitFlexWrap;
-/** @type {string} */ CSSProperties.prototype.webkitFlowFrom;
-/** @type {string} */ CSSProperties.prototype.webkitFlowInto;
-/** @type {string} */ CSSProperties.prototype.webkitFontSizeDelta;
-/** @type {string} */ CSSProperties.prototype.webkitFontSmoothing;
-/** @type {string} */ CSSProperties.prototype.webkitGridColumn;
-/** @type {string} */ CSSProperties.prototype.webkitGridColumns;
-/** @type {string} */ CSSProperties.prototype.webkitGridRow;
-/** @type {string} */ CSSProperties.prototype.webkitGridRows;
-/** @type {string} */ CSSProperties.prototype.webkitHighlight;
-/** @type {string} */ CSSProperties.prototype.webkitHyphenateCharacter;
-/** @type {string} */ CSSProperties.prototype.webkitHyphenateLimitAfter;
-/** @type {string} */ CSSProperties.prototype.webkitHyphenateLimitBefore;
-/** @type {string} */ CSSProperties.prototype.webkitHyphenateLimitLines;
-/** @type {string} */ CSSProperties.prototype.webkitHyphens;
-/** @type {string} */ CSSProperties.prototype.webkitJustifyContent;
-/** @type {string} */ CSSProperties.prototype.webkitLineAlign;
-/** @type {string} */ CSSProperties.prototype.webkitLineBoxContain;
-/** @type {string} */ CSSProperties.prototype.webkitLineBreak;
-/** @type {string} */ CSSProperties.prototype.webkitLineClamp;
-/** @type {string} */ CSSProperties.prototype.webkitLineGrid;
-/** @type {string} */ CSSProperties.prototype.webkitLineSnap;
-/** @type {string} */ CSSProperties.prototype.webkitLocale;
-/** @type {string} */ CSSProperties.prototype.webkitLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.webkitLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.webkitMarginAfter;
-/** @type {string} */ CSSProperties.prototype.webkitMarginAfterCollapse;
-/** @type {string} */ CSSProperties.prototype.webkitMarginBefore;
-/** @type {string} */ CSSProperties.prototype.webkitMarginBeforeCollapse;
-/** @type {string} */ CSSProperties.prototype.webkitMarginBottomCollapse;
-/** @type {string} */ CSSProperties.prototype.webkitMarginCollapse;
-/** @type {string} */ CSSProperties.prototype.webkitMarginEnd;
-/** @type {string} */ CSSProperties.prototype.webkitMarginStart;
-/** @type {string} */ CSSProperties.prototype.webkitMarginTopCollapse;
-/** @type {string} */ CSSProperties.prototype.webkitMarquee;
-/** @type {string} */ CSSProperties.prototype.webkitMarqueeDirection;
-/** @type {string} */ CSSProperties.prototype.webkitMarqueeIncrement;
-/** @type {string} */ CSSProperties.prototype.webkitMarqueeRepetition;
-/** @type {string} */ CSSProperties.prototype.webkitMarqueeSpeed;
-/** @type {string} */ CSSProperties.prototype.webkitMarqueeStyle;
-/** @type {string} */ CSSProperties.prototype.webkitMask;
-/** @type {string} */ CSSProperties.prototype.webkitMaskAttachment;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImage;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImageOutset;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImageRepeat;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImageSlice;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImageSource;
-/** @type {string} */ CSSProperties.prototype.webkitMaskBoxImageWidth;
-/** @type {string} */ CSSProperties.prototype.webkitMaskClip;
-/** @type {string} */ CSSProperties.prototype.webkitMaskComposite;
-/** @type {string} */ CSSProperties.prototype.webkitMaskImage;
-/** @type {string} */ CSSProperties.prototype.webkitMaskOrigin;
-/** @type {string} */ CSSProperties.prototype.webkitMaskPosition;
-/** @type {string} */ CSSProperties.prototype.webkitMaskPositionX;
-/** @type {string} */ CSSProperties.prototype.webkitMaskPositionY;
-/** @type {string} */ CSSProperties.prototype.webkitMaskRepeat;
-/** @type {string} */ CSSProperties.prototype.webkitMaskRepeatX;
-/** @type {string} */ CSSProperties.prototype.webkitMaskRepeatY;
-/** @type {string} */ CSSProperties.prototype.webkitMaskSize;
-/** @type {string} */
-CSSProperties.prototype.webkitMatchNearestMailBlockquoteColor;
-/** @type {string} */ CSSProperties.prototype.webkitMaxLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.webkitMaxLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.webkitMinLogicalHeight;
-/** @type {string} */ CSSProperties.prototype.webkitMinLogicalWidth;
-/** @type {string} */ CSSProperties.prototype.webkitNbspMode;
-/** @type {string} */ CSSProperties.prototype.webkitOrder;
-/** @type {string} */ CSSProperties.prototype.webkitOverflowScrolling;
-/** @type {string} */ CSSProperties.prototype.webkitPaddingAfter;
-/** @type {string} */ CSSProperties.prototype.webkitPaddingBefore;
-/** @type {string} */ CSSProperties.prototype.webkitPaddingEnd;
-/** @type {string} */ CSSProperties.prototype.webkitPaddingStart;
-/** @type {string} */ CSSProperties.prototype.webkitPerspective;
-/** @type {string} */ CSSProperties.prototype.webkitPerspectiveOrigin;
-/** @type {string} */ CSSProperties.prototype.webkitPerspectiveOriginX;
-/** @type {string} */ CSSProperties.prototype.webkitPerspectiveOriginY;
-/** @type {string} */ CSSProperties.prototype.webkitPrintColorAdjust;
-/** @type {string} */ CSSProperties.prototype.webkitRegionBreakAfter;
-/** @type {string} */ CSSProperties.prototype.webkitRegionBreakBefore;
-/** @type {string} */ CSSProperties.prototype.webkitRegionBreakInside;
-/** @type {string} */ CSSProperties.prototype.webkitRegionOverflow;
-/** @type {string} */ CSSProperties.prototype.webkitRtlOrdering;
-/** @type {string} */ CSSProperties.prototype.webkitRubyPosition;
-/** @type {string} */ CSSProperties.prototype.webkitShapeInside;
-/** @type {string} */ CSSProperties.prototype.webkitShapeMargin;
-/** @type {string} */ CSSProperties.prototype.webkitShapeOutside;
-/** @type {string} */ CSSProperties.prototype.webkitShapePadding;
-/** @type {string} */ CSSProperties.prototype.webkitTapHighlightColor;
-/** @type {string} */ CSSProperties.prototype.webkitTextAlignLast;
-/** @type {string} */ CSSProperties.prototype.webkitTextCombine;
-/** @type {string} */ CSSProperties.prototype.webkitTextDecorationLine;
-/** @type {string} */ CSSProperties.prototype.webkitTextDecorationsInEffect;
-/** @type {string} */ CSSProperties.prototype.webkitTextDecorationStyle;
-/** @type {string} */ CSSProperties.prototype.webkitTextEmphasis;
-/** @type {string} */ CSSProperties.prototype.webkitTextEmphasisColor;
-/** @type {string} */ CSSProperties.prototype.webkitTextEmphasisPosition;
-/** @type {string} */ CSSProperties.prototype.webkitTextEmphasisStyle;
-/** @type {string} */ CSSProperties.prototype.webkitTextFillColor;
-/** @type {string} */ CSSProperties.prototype.webkitTextOrientation;
-/** @type {string} */ CSSProperties.prototype.webkitTextSecurity;
-/** @type {string} */ CSSProperties.prototype.webkitTextSizeAdjust;
-/** @type {string} */ CSSProperties.prototype.webkitTextStroke;
-/** @type {string} */ CSSProperties.prototype.webkitTextStrokeColor;
-/** @type {string} */ CSSProperties.prototype.webkitTextStrokeWidth;
-/** @type {string} */ CSSProperties.prototype.webkitTransform;
-/** @type {string} */ CSSProperties.prototype.webkitTransformOrigin;
-/** @type {string} */ CSSProperties.prototype.webkitTransformOriginX;
-/** @type {string} */ CSSProperties.prototype.webkitTransformOriginY;
-/** @type {string} */ CSSProperties.prototype.webkitTransformOriginZ;
-/** @type {string} */ CSSProperties.prototype.webkitTransformStyle;
-/** @type {string} */ CSSProperties.prototype.webkitTransition;
-/** @type {string} */ CSSProperties.prototype.webkitTransitionDelay;
-/** @type {string} */ CSSProperties.prototype.webkitTransitionDuration;
-/** @type {string} */ CSSProperties.prototype.webkitTransitionProperty;
-/** @type {string} */ CSSProperties.prototype.webkitTransitionRepeatCount;
-/** @type {string} */ CSSProperties.prototype.webkitTransitionTimingFunction;
-/** @type {string} */ CSSProperties.prototype.webkitUserDrag;
-/** @type {string} */ CSSProperties.prototype.webkitUserModify;
-/** @type {string} */ CSSProperties.prototype.webkitUserSelect;
-/** @type {string} */ CSSProperties.prototype.webkitWrap;
-/** @type {string} */ CSSProperties.prototype.webkitWrapFlow;
-/** @type {string} */ CSSProperties.prototype.webkitWrapThrough;
-/** @type {string} */ CSSProperties.prototype.webkitWritingMode;
-
-/**
- * @constructor
- * @param {number} x
- * @param {number} y
- */
-function WebKitPoint(x, y) {}
-
-/** @type {number} */
-WebKitPoint.prototype.x;
-
-/** @type {number} */
-WebKitPoint.prototype.y;
diff --git a/dom/html/HTMLDivElement.cpp b/dom/html/HTMLDivElement.cpp
index b56187e29..d5b587241 100644
--- a/dom/html/HTMLDivElement.cpp
+++ b/dom/html/HTMLDivElement.cpp
@@ -34,20 +34,6 @@ HTMLDivElement::ParseAttribute(int32_t aNamespaceID,
                                nsAttrValue& aResult)
 {
   if (aNamespaceID == kNameSpaceID_None) {
-    if (mNodeInfo->Equals(nsGkAtoms::marquee)) {
-      if ((aAttribute == nsGkAtoms::width) ||
-          (aAttribute == nsGkAtoms::height)) {
-        return aResult.ParseSpecialIntValue(aValue);
-      }
-      if (aAttribute == nsGkAtoms::bgcolor) {
-        return aResult.ParseColor(aValue);
-      }
-      if ((aAttribute == nsGkAtoms::hspace) ||
-          (aAttribute == nsGkAtoms::vspace)) {
-        return aResult.ParseIntWithBounds(aValue, 0);
-      }
-    }
-
     if (mNodeInfo->Equals(nsGkAtoms::div) &&
         aAttribute == nsGkAtoms::align) {
       return ParseDivAlignValue(aValue, aResult);
@@ -66,15 +52,6 @@ HTMLDivElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
   nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
 }
 
-static void
-MapMarqueeAttributesIntoRule(const nsMappedAttributes* aAttributes, nsRuleData* aData)
-{
-  nsGenericHTMLElement::MapImageMarginAttributeInto(aAttributes, aData);
-  nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aData);
-  nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aData);
-  nsGenericHTMLElement::MapBGColorInto(aAttributes, aData);
-}
-
 NS_IMETHODIMP_(bool)
 HTMLDivElement::IsAttributeMapped(const nsIAtom* aAttribute) const
 {
@@ -85,14 +62,6 @@ HTMLDivElement::IsAttributeMapped(const nsIAtom* aAttribute) const
     };
     return FindAttributeDependence(aAttribute, map);
   }
-  if (mNodeInfo->Equals(nsGkAtoms::marquee)) {  
-    static const MappedAttributeEntry* const map[] = {
-      sImageMarginSizeAttributeMap,
-      sBackgroundColorAttributeMap,
-      sCommonAttributeMap
-    };
-    return FindAttributeDependence(aAttribute, map);
-  }
 
   return nsGenericHTMLElement::IsAttributeMapped(aAttribute);
 }
@@ -103,9 +72,6 @@ HTMLDivElement::GetAttributeMappingFunction() const
   if (mNodeInfo->Equals(nsGkAtoms::div)) {
     return &MapAttributesIntoRule;
   }
-  if (mNodeInfo->Equals(nsGkAtoms::marquee)) {
-    return &MapMarqueeAttributesIntoRule;
-  }  
   return nsGenericHTMLElement::GetAttributeMappingFunction();
 }
 
diff --git a/dom/html/test/test_bug389797.html b/dom/html/test/test_bug389797.html
index 884348b12..373528c71 100644
--- a/dom/html/test/test_bug389797.html
+++ b/dom/html/test/test_bug389797.html
@@ -168,7 +168,6 @@ HTML_TAG("listing", "Pre");
 HTML_TAG("main", "");
 HTML_TAG("map", "Map");
 HTML_TAG("mark", "");
-HTML_TAG("marquee", "Div");
 HTML_TAG("menu", "Menu");
 HTML_TAG("meta", "Meta");
 HTML_TAG("meter", "Meter");
diff --git a/dom/html/test/test_documentAll.html b/dom/html/test/test_documentAll.html
index ec877acec..9db77d2fe 100644
--- a/dom/html/test/test_documentAll.html
+++ b/dom/html/test/test_documentAll.html
@@ -117,7 +117,7 @@ var elementNames =
    'input','ins','isindex','kbd','keygen','label','li','legend','link','menu',
    'multicol','noscript','noframes','object','spacer','table','td','td','th',
    'thead','tfoot','tr','textarea','select','option','spacer','param',
-   'marquee','hr','title','hx','tt','u','ul','var','wbr','sub','sup','cite',
+   'hr','title','hx','tt','u','ul','var','wbr','sub','sup','cite',
    'code','q','nobr','ol','p','pre','s','samp','small','body','html','map',
    'bdo','legend','listing','style','script','tbody','caption','meta',
    'optgroup','button','span','strike','strong','td'].sort();
diff --git a/dom/security/test/csp/file_bug1312272.html b/dom/security/test/csp/file_bug1312272.html
deleted file mode 100644
index 18e0e5589..000000000
--- a/dom/security/test/csp/file_bug1312272.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<!DOCTYPE HTML>
-<!-- Any copyright is dedicated to the Public Domain.
-     http://creativecommons.org/publicdomain/zero/1.0/ -->
-<html>
-<head>
-  <meta charset="utf-8">
-  <title>marquee inline script tests for Bug 1312272</title>
-</head>
-<body>
-<marquee id="m" onstart="parent.postMessage('csp-violation-marquee-onstart', '*')">bug 1312272</marquee>
-<script src="file_bug1312272.js"></script>
-</body>
-</html>
diff --git a/dom/security/test/csp/file_strict_dynamic_script_events_xbl.html b/dom/security/test/csp/file_strict_dynamic_script_events_xbl.html
deleted file mode 100644
index 701ef3226..000000000
--- a/dom/security/test/csp/file_strict_dynamic_script_events_xbl.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-<head>
-  <title>Bug 1316826 - 'strict-dynamic' blocking DOM event handlers</title>
-</head>
-<body>
-<div id="testdiv">blocked</div>
-
-<marquee onstart='document.getElementById("testdiv").innerHTML = "allowed";'>
-  Bug 1316826
-</marquee>
-
-</body>
-</html>
diff --git a/dom/security/test/csp/test_strict_dynamic.html b/dom/security/test/csp/test_strict_dynamic.html
index 00e75143f..8f1b53f31 100644
--- a/dom/security/test/csp/test_strict_dynamic.html
+++ b/dom/security/test/csp/test_strict_dynamic.html
@@ -79,13 +79,6 @@ var tests = [
     policy: "script-src 'strict-dynamic' 'nonce-foo'"
   },
   {
-    // marquee is a special snowflake. Extra test for xbl things.
-    desc: "strict-dynamic with DOM events should be blocked (XBL)",
-    result: "blocked",
-    file: "file_strict_dynamic_script_events_xbl.html",
-    policy: "script-src 'strict-dynamic' 'nonce-foo'"
-  },
-  {
     desc: "strict-dynamic with JS URLs should be blocked",
     result: "blocked",
     file: "file_strict_dynamic_js_url.html",
diff --git a/dom/tests/browser/browser_bug396843.js b/dom/tests/browser/browser_bug396843.js
index 84d7e3b83..a2281d1b8 100644
--- a/dom/tests/browser/browser_bug396843.js
+++ b/dom/tests/browser/browser_bug396843.js
@@ -72,7 +72,6 @@ function testInDocument(doc, documentID) {
     HTML_TAG("link", "Link")
     HTML_TAG("listing", "Span")
     HTML_TAG("map", "Map")
-    HTML_TAG("marquee", "Div")
     HTML_TAG("menu", "Shared")
     HTML_TAG("meta", "Meta")
     HTML_TAG("multicol", "Unknown")
diff --git a/dom/tests/mochitest/bugs/mochitest.ini b/dom/tests/mochitest/bugs/mochitest.ini
index 3743c6782..6865ada88 100644
--- a/dom/tests/mochitest/bugs/mochitest.ini
+++ b/dom/tests/mochitest/bugs/mochitest.ini
@@ -145,5 +145,4 @@ skip-if = toolkit == 'android' #Windows can't change size on Android
 skip-if = toolkit == 'android'
 [test_bug1022869.html]
 [test_bug1112040.html]
-[test_bug1160342_marquee.html]
 [test_bug1171215.html]
diff --git a/dom/tests/mochitest/bugs/test_bug1160342_marquee.html b/dom/tests/mochitest/bugs/test_bug1160342_marquee.html
deleted file mode 100644
index 8da13478e..000000000
--- a/dom/tests/mochitest/bugs/test_bug1160342_marquee.html
+++ /dev/null
@@ -1,337 +0,0 @@
-<!DOCTYPE html>
-<html>
-<!--
-https://bugzilla.mozilla.org/show_bug.cgi?id=1160342
--->
-<head>
-  <title>Test for Bug 411103</title>
-  <script type="text/javascript" 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=1160342">Mozilla Bug 1160342</a>
-<p id="display"></p>
-<div id="content">
-<marquee id="a" style="border: 1px solid black;">marquee</marquee>
-</div>
-
-<pre id="test">
-<script class="testbody" type="text/javascript">
-/* The todos are cases where IE/Edge is throwing errors, but
-   for Mozilla it was decided to not do that for now */
-  var x=document.getElementById('a');
-
-  SimpleTest.waitForExplicitFinish();
-
-  setTimeout(function() {
-    is(x.behavior, "scroll", "Wrong behavior value");
-    x.setAttribute('behavior', 'alternate');
-    is(x.behavior, "alternate", "Wrong behavior value");
-    x.setAttribute('behavior', 'invalid');
-    is(x.behavior, "scroll", "Wrong behavior value");;
-    x.setAttribute('behavior', 'Scroll');
-    is(x.behavior, "scroll", "Wrong behavior value");
-    x.setAttribute('behavior', 'Slide');
-    is(x.behavior, "slide", "Wrong behavior value");
-    x.setAttribute('behavior', '');
-    is(x.behavior, "scroll", "Wrong behavior value");
-    x.setAttribute('behavior', 'slide');
-    x.removeAttribute('behavior');
-    is(x.behavior, "scroll", "Wrong behavior value");
-    is(x.getAttribute('behavior'), null, "Wrong behavior attribute");
-
-    x.behavior = 'alternate';
-    is(x.behavior, "alternate", "Wrong behavior value");
-    try {
-      x.behavior = 'invalid';
-      todo_is(false, true, "marquee.behavior = 'invalid' should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.behavior, "alternate", "Wrong behavior value");
-    is(x.getAttribute('behavior'), "alternate", "Wrong behavior attribute");
-    x.behavior = 'Slide';
-    is(x.behavior, "slide", "Wrong behavior value");
-    is(x.getAttribute('behavior'), "slide", "Wrong behavior attribute");
-    try {
-      x.behavior = 'invalid';
-      todo_is(false, true, "marquee.behavior = 'invalid' should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    try {
-      x.behavior = null;
-      x.behavior = undefined;
-      todo_is(false, true, "marquee.behavior = 'invalid' should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.behavior, "slide", "Wrong behavior value");
-    is(x.getAttribute('behavior'), "slide", "Wrong behavior attribute");
-    // This doesn't work in Mozilla due to chrome XBL security issues
-    x.behavior = { toString: function _toString() { return "scroll"} }
-    is(x.behavior, x.getAttribute('behavior'), "Wrong behavior value");
-    x.behavior = 'scroll';
-    is(x.behavior, "scroll", "Wrong behavior value");
-
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '1');
-    is(x.loop, 1, "Wrong loop value");
-    x.setAttribute('loop', 'invalid');
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '');
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '0');
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '1000');
-    is(x.loop, 1000, "Wrong loop value");
-    x.setAttribute('loop', '-0.123');
-    is(x.loop, 1000, "Wrong loop value");
-    x.setAttribute('loop', '-1.123');
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '-1');
-    is(x.loop, -1, "Wrong loop value");
-    x.setAttribute('loop', '1000');
-    is(x.loop, 1000, "Wrong loop value");
-    x.removeAttribute('loop');
-    is(x.loop, -1, "Wrong loop value");
-    is(x.getAttribute('loop'), null, "Wrong loop attribute");
-
-    x.loop = 1;
-    is(x.loop, 1, "Wrong loop value");
-    is(x.getAttribute('loop'), "1", "Wrong loop attribute");
-    try {
-      x.loop = -2;
-      todo_is(false, true, "marquee.loop = -2 should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.loop, 1, "Wrong loop value");
-    is(x.getAttribute('loop'), "1", "Wrong loop attribute");
-    try {
-      x.loop = 'invalid';
-      todo_is(false, true, ".loop = 'invalid' should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.loop, 1, "Wrong loop value");
-    is(x.getAttribute('loop'), "1", "Wrong loop attribute");
-    try {
-      x.loop = null;
-      todo_is(false, true, "marquee.loop = null should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.loop, 1, "Wrong loop value");
-    is(x.getAttribute('loop'), "1", "Wrong loop attribute");
-    x.loop = -1;
-    is(x.loop, -1, "Wrong loop value");
-    is(x.getAttribute('loop'), "-1", "Wrong loop attribute");
-    x.loop = '100';
-    is(x.loop, 100, "Wrong loop value");
-    is(x.getAttribute('loop'), "100", "Wrong loop attribute");
-    try {
-      x.loop = -0.123;
-      todo_is(false, true, "marquee.loop = null should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.loop, 100, "Wrong loop value");
-    is(x.getAttribute('loop'), "100", "Wrong loop attribute");
-    try {
-      x.loop = 0;
-      todo_is(false, true, "marquee.loop = null should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.loop, 100, "Wrong loop value");
-    is(x.getAttribute('loop'), "100", "Wrong loop attribute");
-    x.loop = -1.123;
-    is(x.loop, -1, "Wrong loop value");
-    is(x.getAttribute('loop'), "-1", "Wrong loop attribute");
-
-
-    is(x.scrollAmount, 6, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '1');
-    is(x.scrollAmount, 1, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', 'invalid');
-    is(x.scrollAmount, 6, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '1000');
-    is(x.scrollAmount, 1000, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '-1');
-    is(x.scrollAmount, 1000, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '999');
-    is(x.scrollAmount, 999, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '');
-    is(x.scrollAmount, 6, "Wrong scrollAmount value");
-    x.setAttribute('scrollAmount', '999');
-    x.removeAttribute('scrollAmount');
-    is(x.scrollAmount, 6, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), null, "Wrong scrollamount attribute");
-
-    x.scrollAmount = 1;
-    is(x.scrollAmount, 1, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), "1", "Wrong scrolldelay attribute");
-    try {
-      x.scrollAmount = -2;
-      todo_is(false, true, "marquee.scrollAmount = -2 should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.scrollAmount, 1, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), "1", "Wrong scrolldelay attribute");
-    x.scrollAmount = 'invalid';
-    is(x.scrollAmount, 0, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), "0", "Wrong scrolldelay attribute");
-    x.scrollAmount = 1;
-    x.scrollAmount = null;
-    is(x.scrollAmount, 0, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), "0", "Wrong scrolldelay attribute");
-    x.scrollAmount = '2';
-    is(x.scrollAmount, 2, "Wrong scrollAmount value");
-    is(x.getAttribute('scrollamount'), "2", "Wrong scrolldelay attribute");
-
-
-    is(x.scrollDelay, 85, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '1');
-    is(x.scrollDelay, 1, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', 'invalid');
-    is(x.scrollDelay, 85, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '70');
-    is(x.scrollDelay, 70, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '59');
-    is(x.scrollDelay, 59, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '1000');
-    is(x.scrollDelay, 1000, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '-1');
-    is(x.scrollDelay, 1000, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '');
-    is(x.scrollDelay, 85, "Wrong scrollDelay value");
-    x.setAttribute('scrollDelay', '1000');
-    x.removeAttribute('scrollDelay');
-    is(x.scrollDelay, 85, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), null, "Wrong scrolldelay attribute");
-
-    x.scrollDelay = 100;
-    is(x.scrollDelay, 100, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "100", "Wrong scrolldelay attribute");
-    try {
-      x.scrollDelay = -2;
-      todo_is(false, true, "marquee.scrollDelay = -2 should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.scrollDelay, 100, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "100", "Wrong scrolldelay attribute");
-    try {
-      x.scrollDelay = 'invalid';
-      todo_is(false, true, "marquee.scrollDelay = 'invalid' should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.scrollDelay, 100, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "100", "Wrong scrolldelay attribute");
-    try {
-      x.scrollDelay = null;
-      todo_is(false, true, "marquee.scrollDelay = null should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.scrollDelay, 100, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "100", "Wrong scrolldelay attribute");
-    try {
-      x.scrollDelay = -1;
-      todo_is(false, true, "marquee.scrollDelay = -1 should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.scrollDelay, 100, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "100", "Wrong scrolldelay attribute");
-    x.scrollDelay = '50';
-    is(x.scrollDelay, 50, "Wrong scrollDelay value");
-    is(x.getAttribute('scrolldelay'), "50", "Wrong scrolldelay attribute");
-
-
-    is(x.trueSpeed, false, "Wrong trueSpeed value");
-    x.setAttribute('trueSpeed', '1');
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    x.setAttribute('trueSpeed', 'false');
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    x.setAttribute('trueSpeed', '');
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    x.removeAttribute('trueSpeed');
-    is(x.trueSpeed, false, "Wrong trueSpeed value");
-    is(x.getAttribute('truespeed'), null, "Wrong truespeed attribute");
-
-    x.trueSpeed = 1;
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    is(x.getAttribute('truespeed'), "", "Wrong truespeed attribute");
-    x.trueSpeed = -2;
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    is(x.getAttribute('truespeed'), "", "Wrong truespeed attribute");
-    x.trueSpeed = null;
-    is(x.trueSpeed, false, "Wrong trueSpeed value");
-    is(x.getAttribute('truespeed'), null, "Wrong truespeed attribute");
-    x.trueSpeed = '100';
-    is(x.trueSpeed, true, "Wrong trueSpeed value");
-    is(x.getAttribute('truespeed'), "", "Wrong truespeed attribute");
-
-
-    is(x.direction, "left", "Wrong direction value");
-    x.setAttribute('direction', 'right');
-    is(x.direction, "right", "Wrong direction value");
-    x.setAttribute('direction', 'invalid');
-    is(x.direction, "left", "Wrong direction value");
-    x.setAttribute('direction', 'RIGHT');
-    is(x.direction, "right", "Wrong direction value");
-    x.setAttribute('direction', '');
-    is(x.direction, "left", "Wrong direction value");
-    x.setAttribute('direction', 'right');
-    x.removeAttribute('direction');
-    is(x.direction, "left", "Wrong direction value");
-    is(x.getAttribute('direction'), null, "Wrong direction attribute");
-    x.setAttribute('direction', 'up');
-    is(x.direction, "up", "Wrong direction value");
-    x.setAttribute('direction', 'down');
-    is(x.direction, "down", "Wrong direction value");
-    x.removeAttribute('direction');
-    is(x.direction, "left", "Wrong direction value");
-    is(x.getAttribute('direction'), null, "Wrong direction attribute");
-
-    x.direction = 'right';
-    is(x.direction, "right", "Wrong direction value");
-    is(x.getAttribute('direction'), "right", "Wrong direction attribute");
-    x.direction = 'up';
-    is(x.direction, "up", "Wrong direction value");
-    is(x.getAttribute('direction'), "up", "Wrong direction attribute");
-    x.direction = 'down';
-    is(x.direction, "down", "Wrong direction value");
-    is(x.getAttribute('direction'), "down", "Wrong direction attribute");
-    try {
-      x.direction = 1;
-      todo_is(false, true, "marquee.direction = 1 should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.direction, "down", "Wrong direction value");
-    is(x.getAttribute('direction'), "down", "Wrong direction attribute");
-    try {
-      x.direction = null;
-      todo_is(false, true, "marquee.direction = null should throw");
-    } catch(e) {
-      ok(true, "Exception was raised");
-    }
-    is(x.direction, "down", "Wrong direction value");
-    is(x.getAttribute('direction'), "down", "Wrong direction attribute");
-    // This doesn't work in Mozilla due to chrome XBL security issues
-    x.direction = { toString: function _toString() { return "right"} }
-    is(x.direction, x.getAttribute('direction'), "Wrong direction value");
-    x.direction = 'left';
-    is(x.direction, "left", "Wrong direction value");
-    SimpleTest.finish();
-  }, 0);
-
-</script>
-</pre>
-</body>
-</html>
diff --git a/dom/tests/mochitest/bugs/test_bug396843.html b/dom/tests/mochitest/bugs/test_bug396843.html
index 20dc53068..031843fd4 100644
--- a/dom/tests/mochitest/bugs/test_bug396843.html
+++ b/dom/tests/mochitest/bugs/test_bug396843.html
@@ -92,7 +92,6 @@ HTML_TAG("li", "LI")
 HTML_TAG("link", "Link")
 HTML_TAG("listing", "Span")
 HTML_TAG("map", "Map")
-HTML_TAG("marquee", "Div")
 HTML_TAG("menu", "Shared")
 HTML_TAG("meta", "Meta")
 HTML_TAG("multicol", "Unknown")
diff --git a/dom/xbl/crashtests/342954-1.xhtml b/dom/xbl/crashtests/342954-1.xhtml
deleted file mode 100644
index dbaa15384..000000000
--- a/dom/xbl/crashtests/342954-1.xhtml
+++ /dev/null
@@ -1,46 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xbl="http://www.mozilla.org/xbl">
-
-
-<head>
-
-<script>
-<![CDATA[
-
-function boo()
-{
-  s1 = document.getElementById("s1");  
-  marq = document.getElementById("marq");
-  marqAnonymousSomething = document.getAnonymousNodes(marq)[0].childNodes[0];
-
-  removeNode(marqAnonymousSomething);
-  s1.appendChild(document.createElement("div"));
-}
-
-function removeNode(q1) { q1.parentNode.removeChild(q1); }
-
-]]>
-</script>
-
-<xbl:bindings id="marqueeBindings">
-  <xbl:binding id="marquee-horizontal-12">
-    <xbl:content>
-      <div>
-        <xbl:children/>
-      </div>
-    </xbl:content>
-  </xbl:binding>
-</xbl:bindings>
-
-</head>
-
-
-<body onload="boo()">
-
-<span id="s1">Span</span>
-
-<div id="marq" style="-moz-binding: url('#marquee-horizontal-12');">Marquee</div>
-
-</body>
-
-
-</html>
diff --git a/dom/xbl/crashtests/342954-2-xbl.xml b/dom/xbl/crashtests/342954-2-xbl.xml
deleted file mode 100644
index 3e73f1355..000000000
--- a/dom/xbl/crashtests/342954-2-xbl.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0"?>
-
-<bindings id="marqueeBindings"
-          xmlns="http://www.mozilla.org/xbl"
-          xmlns:html="http://www.w3.org/1999/xhtml"
-          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-          xmlns:xbl="http://www.mozilla.org/xbl">
-
-  <binding id="marquee-horizontal-10">
-
-    <content>
-      <html:div>
-        <children/>
-      </html:div>
-    </content>
-
-  </binding>
-
-</bindings>
diff --git a/dom/xbl/crashtests/342954-2.xhtml b/dom/xbl/crashtests/342954-2.xhtml
deleted file mode 100644
index 4a250e31c..000000000
--- a/dom/xbl/crashtests/342954-2.xhtml
+++ /dev/null
@@ -1,29 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-<head>
-<script>
-<![CDATA[
-
-function boo()
-{
-  s1 = document.getElementById("s1");  
-  marq = document.getElementById("marq");
-  marqAnonymousSomething = document.getAnonymousNodes(marq)[0].childNodes[0];
-
-  removeNode(marqAnonymousSomething);
-  s1.appendChild(document.createElement("div"));
-}
-
-function removeNode(q1) { q1.parentNode.removeChild(q1); }
-
-]]>
-</script>
-</head>
-
-<body onload="boo()">
-
-<span id="s1">Span</span>
-
-<div id="marq" style="-moz-binding: url('342954-2-xbl.xml#marquee-horizontal-10');">Marquee</div>
-
-</body>
-</html>
diff --git a/dom/xbl/crashtests/477878-1.html b/dom/xbl/crashtests/477878-1.html
deleted file mode 100644
index 17e4002b4..000000000
--- a/dom/xbl/crashtests/477878-1.html
+++ /dev/null
@@ -1,4 +0,0 @@
-<html>
-<head></head>
-<body><iframe style="display:none" src="data:text/html,<marquee>Marquee</marquee>" onload="this.style.display = '';"></iframe></body>
-</html>
diff --git a/editor/libeditor/HTMLEditUtils.cpp b/editor/libeditor/HTMLEditUtils.cpp
index 0adc5d511..098a908f1 100644
--- a/editor/libeditor/HTMLEditUtils.cpp
+++ b/editor/libeditor/HTMLEditUtils.cpp
@@ -688,7 +688,6 @@ static const ElementInfo kElements[eHTMLTag_userdefined] = {
   ELEM(main, true, true, GROUP_BLOCK, GROUP_FLOW_ELEMENT),
   ELEM(map, true, true, GROUP_SPECIAL, GROUP_BLOCK | GROUP_MAP_CONTENT),
   ELEM(mark, true, true, GROUP_PHRASE, GROUP_INLINE_ELEMENT),
-  ELEM(marquee, false, false, GROUP_NONE, GROUP_NONE),
   ELEM(menu, true, true, GROUP_BLOCK, GROUP_LI | GROUP_FLOW_ELEMENT),
   ELEM(menuitem, false, false, GROUP_NONE, GROUP_NONE),
   ELEM(meta, false, false, GROUP_HEAD_CONTENT, GROUP_NONE),
diff --git a/layout/base/crashtests/265027-1.html b/layout/base/crashtests/265027-1.html
deleted file mode 100644
index 9b455da41..000000000
--- a/layout/base/crashtests/265027-1.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<HTML>
-<HEAD>
-<MARQUEE>
-<TABLE>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<MARQUEE HEIGHT=100000000>
-<TBODY>
-Attack of the marquees!
-
-
diff --git a/layout/base/crashtests/265986-1.html b/layout/base/crashtests/265986-1.html
deleted file mode 100644
index 8d4ca290f..000000000
--- a/layout/base/crashtests/265986-1.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.0 Transitional//EN'>

-<HTML>

-<HEAD>

-</HEAD>

-<BODY>

-<IFRAME STYLE="MARGIN:99999999999px; PADDING:-99999999999px;"></IFRAME>

-<APPLET STYLE="HEIGHT:9999999999pt; float:left; MARGIN:-99999999999px; border:99999999999px solid blue;"></APPLET>

-<MARQUEE STYLE=" WIDTH:9999999999px;">W</MARQUEE>

-</BODY>

-</HTML>

diff --git a/layout/base/crashtests/265999-1.html b/layout/base/crashtests/265999-1.html
deleted file mode 100644
index 7e6e3d416..000000000
--- a/layout/base/crashtests/265999-1.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<!DOCTYPE HTML PUBLIC '-//W3C//DTD HTML 4.0 Transitional//EN'>

-<HTML>

-<HEAD>

-</HEAD>

-<BODY>

-<MARQUEE STYLE="HEIGHT:9999999999px; float:right; border:99999999999px solid blue;"></MARQUEE>

-</BODY>

-</HTML>

diff --git a/layout/base/crashtests/367498-2.html b/layout/base/crashtests/367498-2.html
deleted file mode 100644
index 2c85ac0a4..000000000
--- a/layout/base/crashtests/367498-2.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<html><head>
-</head><body>
-<marquee>
-<div style="border: 1px solid black; -moz-border-radius: 2em;">
-<marquee>
-<span style="display: -moz-grid-line;">
-<select></select>
-</span>
-</marquee>
-</div>
-</marquee>
-
-</body>
-</html>
diff --git a/layout/base/crashtests/404491-1.html b/layout/base/crashtests/404491-1.html
deleted file mode 100644
index 540a0f6a1..000000000
--- a/layout/base/crashtests/404491-1.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<html>
-<body>
-<marquee><marquee></marquee><img></marquee>
-</body>
-</html>
diff --git a/layout/base/crashtests/580129-1.html b/layout/base/crashtests/580129-1.html
deleted file mode 100644
index 228051b5a..000000000
--- a/layout/base/crashtests/580129-1.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<html>
-<head>
-<script>
-
-function boom()
-{
-  var a = document.documentElement;
-  var b = document.createElementNS("http://www.w3.org/1999/xhtml", "body");
-  b.setAttributeNS(null, "style", "-moz-column-width: 20em;");
-  a.innerHTML = "<frameset>";
-  b.innerHTML = "<dd><marquee>x";
-  document.removeChild(a);
-  document.appendChild(b);
-}
-
-</script>
-</head>
-<body onload="boom();"></body>
-</html>
diff --git a/layout/base/crashtests/580494-1.html b/layout/base/crashtests/580494-1.html
deleted file mode 100644
index c76125f74..000000000
--- a/layout/base/crashtests/580494-1.html
+++ /dev/null
@@ -1 +0,0 @@
-<html><body><marquee><video></video></marquee></body></html>
\ No newline at end of file
diff --git a/layout/base/crashtests/597924-1.html b/layout/base/crashtests/597924-1.html
deleted file mode 100644
index d855997ee..000000000
--- a/layout/base/crashtests/597924-1.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<script>
-
-function boom()
-{
-  document.getElementById("s").appendChild(document.createElement("div"));
-  var marq = document.getElementById("f").contentDocument.documentElement;
-  marq.behavior = "alternate";
-}
-
-</script>
-</head>
-<body onload="boom();"><span id="s"></span><iframe src="data:text/xml,%3Cmarquee%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml%22%3EX%3C%2Fmarquee%3E" id="f"></iframe></body>
-</html>
diff --git a/layout/generic/crashtests/265867-1.html b/layout/generic/crashtests/265867-1.html
deleted file mode 100644
index e9da8c7f6..000000000
--- a/layout/generic/crashtests/265867-1.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<HTML>
-<HEAD>
-</HEAD>
-<BODY>
-<BODY STYLE="FLOAT:RIGHT;"></BODY>
-<MARQUEE STYLE="MARGIN:99999999999px;"></MARQUEE>
-<B STYLE="FLOAT:RIGHT; PADDING:99999999999px;"></B>
-</BODY>
-</HTML>
-
-
diff --git a/layout/generic/crashtests/348510-1.html b/layout/generic/crashtests/348510-1.html
deleted file mode 100644
index 6e00e71f1..000000000
--- a/layout/generic/crashtests/348510-1.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<marquee>
-<a>
-<object>
-<dd>
-<form>
-</object>
-aaaaaaa
diff --git a/layout/generic/crashtests/348510-2.html b/layout/generic/crashtests/348510-2.html
deleted file mode 100644
index 8f8c998cf..000000000
--- a/layout/generic/crashtests/348510-2.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<listing>
-<marquee>
-<aa>
-<object>
-<fieldset>
-</object>
-a
\ No newline at end of file
diff --git a/layout/generic/crashtests/363722-1.html b/layout/generic/crashtests/363722-1.html
deleted file mode 100644
index f83671c5a..000000000
--- a/layout/generic/crashtests/363722-1.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html>
-<body>
- <marquee style="background: yellow;">
-  <marquee style="background: lightgreen;">
-   I am a double-marquee.
-  </marquee>
- </marquee>
-</body>
-</html>
diff --git a/layout/generic/crashtests/363722-2.html b/layout/generic/crashtests/363722-2.html
deleted file mode 100644
index 1a12a227e..000000000
--- a/layout/generic/crashtests/363722-2.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>
-<body>
- <marquee style="background: yellow;">
-  [inside OUTER marquee]
-  <marquee style="background: lightgreen;">
-   [inside INNER marquee]
-  </marquee>
- </marquee>
-</body>
-</html>
diff --git a/layout/generic/crashtests/370866-1.xhtml b/layout/generic/crashtests/370866-1.xhtml
deleted file mode 100644
index dbc673cc4..000000000
--- a/layout/generic/crashtests/370866-1.xhtml
+++ /dev/null
@@ -1,14 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml">
-
-<head>
-</head>
-
-<body>
-
-<table style="display: -moz-deck;"><tbody><tr><td>
-  <span style="position: relative;"><marquee><marquee><span style="position: absolute;">X</span></marquee></marquee></span>
-</td></tr></tbody></table>
-
-</body>
-
-</html>
diff --git a/layout/generic/crashtests/379917-1.xhtml b/layout/generic/crashtests/379917-1.xhtml
deleted file mode 100644
index a99bd7f4a..000000000
--- a/layout/generic/crashtests/379917-1.xhtml
+++ /dev/null
@@ -1,35 +0,0 @@
-<html xmlns="http://www.w3.org/1999/xhtml" 
-      xmlns:math="http://www.w3.org/1998/Math/MathML"
-      class="reftest-wait">
-<head>
-<script>
-
-// This testcase uses long timeouts to make sure the marquee has a chance to animate.
-
-function boom()
-{
-  var div1 = document.getElementById("div1");
-  var marquee = document.getElementById("marquee");
-
-  div1.parentNode.removeChild(div1);
-  marquee.width = 4;
-  
-  setTimeout(done, 100);
-}
-
-function done()
-{
-  document.documentElement.removeAttribute("class");
-}
-
-</script>
-</head>
-
-<body onload="setTimeout(boom, 100);">
-
-<math:math><div id="div1"/>x&#1506;</math:math>
-<marquee id="marquee">m</marquee>
-<div/>
-
-</body>
-</html>
diff --git a/layout/generic/crashtests/398332-3.html b/layout/generic/crashtests/398332-3.html
deleted file mode 100644
index 991aa6d3d..000000000
--- a/layout/generic/crashtests/398332-3.html
+++ /dev/null
@@ -1,4 +0,0 @@
-<marquee style="position: relative; right: 20%;">"Ë”Öqü®Û;<span style="position: relative; word-spacing: -100px;"><span style="position: absolute;">
-<style>span::before { content:"before textbefore textbefore textbefore textbefore textbefore text"; }</style>
-
-
diff --git a/layout/generic/crashtests/421671.html b/layout/generic/crashtests/421671.html
deleted file mode 100644
index e3919e635..000000000
--- a/layout/generic/crashtests/421671.html
+++ /dev/null
@@ -1,202 +0,0 @@
-<marquee>
-<xmp style="-moz-column-count: 99999999">
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-
-<a>
-<a>
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-<a>
-<a>
-<a>
-<a>
-																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																																						
-<a>
-<a>
-
-<a>
-<a>
\ No newline at end of file
diff --git a/layout/generic/crashtests/619021.html b/layout/generic/crashtests/619021.html
deleted file mode 100644
index 586c0f2db..000000000
--- a/layout/generic/crashtests/619021.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<foo> <marquee> <marquee> <marquee> <marquee> <marquee> <marquee>
-<foo> <marquee> <foo> <marquee> <foo> <object> <marquee> <foo>
-<marquee> <marquee> <foo> <foo> <marquee> <marquee> <foo> <marquee>
-<marquee> <marquee> <foo> <marquee> <foo> <foo> <marquee> <marquee>
-<marquee> </marquee> <foo> <foo> <pre>
diff --git a/layout/generic/crashtests/724235.html b/layout/generic/crashtests/724235.html
deleted file mode 100644
index 7054a99f5..000000000
--- a/layout/generic/crashtests/724235.html
+++ /dev/null
@@ -1,28 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<title>Testcase for bug 724235</title>
-</head>
-
-<body onload="setTimeout(function(){m=document.getElementsByTagName('marquee')[0]; m.style.fontSize='72px'},0)">
-
-<a href="#">
-
-<center>                                             
-
-<marquee>This is a marquee ... </marquee>
-
-<table>
-        <tr> 
-          <td><a href="#">click me to CRASH!</a></td>
-        </tr>
-</table>
-
-<iframe></iframe>
-
-<script>document.body.offsetHeight;</script>
-
-<a href="#"></a>
-
-
-</body></html>
diff --git a/layout/reftests/bidi/logicalmarquee.html b/layout/reftests/bidi/logicalmarquee.html
deleted file mode 100644
index cb13827de..000000000
--- a/layout/reftests/bidi/logicalmarquee.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-  <head>
-    <meta http-equiv="Content-type" content="text/html; charset=iso-8859-8-i">
-    <title>Marquee in Logical Hebrew</title>
-  </head>
-
-  <body>
-    <marquee scrollamount="0" behavior="alternate" direction="right">&#x05E2;&#x05D3; &#x05E9;&#x05D9;&#x05E4;&#x05D5;&#x05D7; &#x05D4;&#x05D9;&#x05D5;&#x05DD; &#x05D5;&#x05E0;&#x05E1;&#x05D5; &#x05D4;&#x05E6;&#x05DC;&#x05D9;&#x05DC;&#x05D9;&#x05DD;</marquee>
- </body>
-</html>
diff --git a/layout/reftests/bidi/marquee-ref.html b/layout/reftests/bidi/marquee-ref.html
deleted file mode 100644
index d8778dc88..000000000
--- a/layout/reftests/bidi/marquee-ref.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE HTML>
-<html>
-  <head>
-    <meta http-equiv="Content-type" content="text/html; charset=iso-8859-8-i">
-    <title>Marquee in Logical Hebrew</title>
-  </head>
-
-  <body>
-    <div dir="rtl" align="left">&#x05E2;&#x05D3; &#x05E9;&#x05D9;&#x05E4;&#x05D5;&#x05D7; &#x05D4;&#x05D9;&#x05D5;&#x05DD; &#x05D5;&#x05E0;&#x05E1;&#x05D5; &#x05D4;&#x05E6;&#x05DC;&#x05D9;&#x05DC;&#x05D9;&#x05DD;</div>
- </body>
-</html>
diff --git a/layout/reftests/bidi/reftest-stylo.list b/layout/reftests/bidi/reftest-stylo.list
index b6a48f9ca..d0a854e7f 100644
--- a/layout/reftests/bidi/reftest-stylo.list
+++ b/layout/reftests/bidi/reftest-stylo.list
@@ -21,9 +21,6 @@ skip == bidiSVG-03.svg bidiSVG-03.svg
 == bidiSVG-04.svg bidiSVG-04.svg
 == bidiSVG-05.svg bidiSVG-05.svg
 random-if(/^Windows\x20NT\x205\.1/.test(http.oscpu)) HTTP(..) == bidiMirroring.svg bidiMirroring.svg
-fuzzy-if(Android,9,134) random-if(layersGPUAccelerated) == visualmarquee.html visualmarquee.html
-fuzzy-if(Android,9,134) random-if(layersGPUAccelerated) == logicalmarquee.html logicalmarquee.html
-== visualmarquee.html visualmarquee.html
 # test for glyph mirroring in right-to-left text
 == mirroring-01.html mirroring-01.html
 # quote marks are not supposed to mirror, but Unicode 5.0 said they should, so some systems do it
diff --git a/layout/reftests/bidi/reftest.list b/layout/reftests/bidi/reftest.list
index eeabd0beb..5044e657f 100644
--- a/layout/reftests/bidi/reftest.list
+++ b/layout/reftests/bidi/reftest.list
@@ -18,9 +18,6 @@ random-if(cocoaWidget) == bidi-006-j.html bidi-006-ref.html # bug 734313
 fuzzy-if(skiaContent,1,1) == bidiSVG-04.svg bidiSVG-04-ref.svg
 == bidiSVG-05.svg bidiSVG-05-ref.svg
 random-if(/^Windows\x20NT\x205\.1/.test(http.oscpu)) HTTP(..) == bidiMirroring.svg bidiMirroring-ref.svg
-fuzzy-if(Android,9,134) random-if(layersGPUAccelerated) == visualmarquee.html marquee-ref.html
-fuzzy-if(Android,9,134) random-if(layersGPUAccelerated) == logicalmarquee.html marquee-ref.html
-== visualmarquee.html logicalmarquee.html
 # test for glyph mirroring in right-to-left text
 == mirroring-01.html mirroring-01-ref.html
 # quote marks are not supposed to mirror, but Unicode 5.0 said they should, so some systems do it
diff --git a/layout/reftests/bidi/visualmarquee.html b/layout/reftests/bidi/visualmarquee.html
deleted file mode 100644
index 932fd775a..000000000
--- a/layout/reftests/bidi/visualmarquee.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
-  <head>
-    <meta http-equiv="Content-type" content="text/html; charset=iso-8859-8">
-    <title>Marquee in Visual Hebrew</title>
-  </head>
-
-  <body>
-    <marquee scrollamount="0" behavior="alternate" direction="right">&#x05DD;&#x05D9;&#x05DC;&#x05D9;&#x05DC;&#x05E6;&#x05D4; &#x05D5;&#x05E1;&#x05E0;&#x05D5; &#x05DD;&#x05D5;&#x05D9;&#x05D4; &#x05D7;&#x05D5;&#x05E4;&#x05D9;&#x05E9; &#x05D3;&#x05E2;</marquee>
- </body>
-</html>
diff --git a/layout/reftests/marquee/1160342-1.html b/layout/reftests/marquee/1160342-1.html
deleted file mode 100644
index 85e7215fb..000000000
--- a/layout/reftests/marquee/1160342-1.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>

-<head>

-<title>Bug 1160342 - Implement marquee using mutation observers</title>

-</head>

-<body onload="document.getElementById('a').setAttribute('behavior', 'alternate')">

-<marquee id="a" scrollamount=0 direction=right>

-This text should be visible

-</marquee>

-</body>

-</html>

diff --git a/layout/reftests/marquee/1160342-2.html b/layout/reftests/marquee/1160342-2.html
deleted file mode 100644
index 99b288568..000000000
--- a/layout/reftests/marquee/1160342-2.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>

-<head>

-<title>Bug 1160342 - Implement marquee using mutation observers</title>

-</head>

-<body onload="document.getElementById('a').setAttribute('direction', 'right')">

-<marquee id="a" behavior=alternate scrollamount=0>

-This text should be visible

-</marquee>

-</body>

-</html>

diff --git a/layout/reftests/marquee/1160342-ref.html b/layout/reftests/marquee/1160342-ref.html
deleted file mode 100644
index d56c90642..000000000
--- a/layout/reftests/marquee/1160342-ref.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>

-<head>

-<title>Bug 1160342 - Implement marquee using mutation observers</title>

-</head>

-<body>

-<marquee id="a" behavior=alternate scrollamount=0 direction=right>

-This text should be visible

-</marquee>

-</body>

-</html>

diff --git a/layout/reftests/marquee/166591-dynamic-1-ref.html b/layout/reftests/marquee/166591-dynamic-1-ref.html
deleted file mode 100644
index a9bed7d5f..000000000
--- a/layout/reftests/marquee/166591-dynamic-1-ref.html
+++ /dev/null
@@ -1,6 +0,0 @@
-<html><head>
-</head>
-<body>
-<div id="test"><marquee behavior="alternate" scrollamount="0">dynamic marquee</marquee></div>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/166591-dynamic-1.html b/layout/reftests/marquee/166591-dynamic-1.html
deleted file mode 100644
index 278b2a37b..000000000
--- a/layout/reftests/marquee/166591-dynamic-1.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<html><head>
-<script>
-function init() {
-  document.getElementById('test').innerHTML = '<marquee behavior="alternate" scrollamount="0">dynamic marquee</marquee>';
-}
-</script>
-</head>
-<body onload="init();">
-<div id="test"></div>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/336736-1-ref.html b/layout/reftests/marquee/336736-1-ref.html
deleted file mode 100644
index 116e5ade2..000000000
--- a/layout/reftests/marquee/336736-1-ref.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<html>
-<body>
-<div style="background: green; width: 50px">&nbsp;</div>
-</body>
-</html>
diff --git a/layout/reftests/marquee/336736-1a.html b/layout/reftests/marquee/336736-1a.html
deleted file mode 100644
index fb54f3060..000000000
--- a/layout/reftests/marquee/336736-1a.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<html>
-<body dir="rtl">
-<!-- The "alternate" behavior is necessary for the
-     marquee text to start out on the screen.      -->
-<marquee 
-  direction="right" 
-  scrollamount="0"
-  behavior="alternate"
->
-<div style="background: green; width: 50px">&nbsp;</div>
-</marquee>
-</body>
-</html>
diff --git a/layout/reftests/marquee/336736-1b.html b/layout/reftests/marquee/336736-1b.html
deleted file mode 100644
index 85338167c..000000000
--- a/layout/reftests/marquee/336736-1b.html
+++ /dev/null
@@ -1,13 +0,0 @@
-<html>
-<body>
-<!-- The "alternate" behavior is necessary for the
-     marquee text to start out on the screen.      -->
-<marquee 
-  direction="right" 
-  scrollamount="0"
-  behavior="alternate"
->
-<div style="background: green; width: 50px">&nbsp;</div>
-</marquee>
-</body>
-</html>
diff --git a/layout/reftests/marquee/406073-1-ref.html b/layout/reftests/marquee/406073-1-ref.html
deleted file mode 100644
index 751bb5db7..000000000
--- a/layout/reftests/marquee/406073-1-ref.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<html class="reftest-wait">
-<body style="border:3px solid;" onload="setTimeout(doe, 0)">
-<marquee behavior="alternate" scrollamount="100"><span style="background-color: lime;">marquee</span></marquee>
-  <script>
-    function doe() {
-      document.getElementsByTagName('marquee')[0].stop();
-      document.documentElement.className = "";
-    }
-  </script>
-</body>
-</html>
diff --git a/layout/reftests/marquee/406073-1.html b/layout/reftests/marquee/406073-1.html
deleted file mode 100644
index 01787afda..000000000
--- a/layout/reftests/marquee/406073-1.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<html class="reftest-wait">
-<body style="border:3px solid;" onload="setTimeout(doe, 0)">
-<marquee behavior="alternate" scrollamount="100"><span style="background-color: lime;">marquee</span></marquee>
-  <script>
-    function doe() {
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.getElementsByTagName('marquee')[0].start();
-      document.getElementsByTagName('marquee')[0].stop();
-      document.documentElement.className = "";
-    }
-  </script>
-</body>
-</html>
diff --git a/layout/reftests/marquee/407016-2-ref.html b/layout/reftests/marquee/407016-2-ref.html
deleted file mode 100644
index 25fee1b7d..000000000
--- a/layout/reftests/marquee/407016-2-ref.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<html>
-<body>
-<div style="background-color: lime; height: 50px;"></div>
-</body>
-</html>
diff --git a/layout/reftests/marquee/407016-2.html b/layout/reftests/marquee/407016-2.html
deleted file mode 100644
index 65e1273b9..000000000
--- a/layout/reftests/marquee/407016-2.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<html>
-<body>
-<marquee scrollamount="0" style="height: 50px; background-color: lime;">
-<div style="width: 9999px;">&nbsp;</div>
-</marquee>
-</body>
-</html>
diff --git a/layout/reftests/marquee/413027-4-ref.html b/layout/reftests/marquee/413027-4-ref.html
deleted file mode 100644
index 22fdd42e6..000000000
--- a/layout/reftests/marquee/413027-4-ref.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html><head>
-<title>Testcase for bug 413027 - Marquee height is sized too small, clipping text vertically</title>
-</head>
-<body>
-
-<div style="background-color: lime; width: 600px; float:left;">
-  <div style="margin: 100px 0px; padding-left: 2px;">text</div>
-</div>
-      
-</body></html>
diff --git a/layout/reftests/marquee/413027-4.html b/layout/reftests/marquee/413027-4.html
deleted file mode 100644
index d57f2f121..000000000
--- a/layout/reftests/marquee/413027-4.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<html><head>
-<title>Testcase for bug 413027 - Marquee height is sized too small, clipping text vertically</title>
-</head>
-<body>
-
-<marquee scrollamount="0" behavior="alternate" direction="right" style="background-color: lime; width: 600px;">
-<div>
-<!-- padding-left used to avoid risk of an antialiasing pixel that may
-     project to the left of the origin, causing a spurious test failure
-     (see bugs 476927, 475968) -->
-  <div style="margin: 100px 0px; padding-left: 2px;">text</div>
-</div>
-</marquee>
-      
-</body></html>
diff --git a/layout/reftests/marquee/425247-1-ref.html b/layout/reftests/marquee/425247-1-ref.html
deleted file mode 100644
index 3b3a84d41..000000000
--- a/layout/reftests/marquee/425247-1-ref.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html><head>
-<title>Bug 425247 – Marquee with uppercase UP or DOWN as direction doesn't work properly</title>
-</head>
-<body>
-<marquee direction="up" bgcolor="magenta" behavior="alternate" scrollamount="0">
-<marquee bgcolor="yellow" behavior="alternate" scrollamount="0">marquee up</marquee>
-</marquee>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/425247-1.html b/layout/reftests/marquee/425247-1.html
deleted file mode 100644
index dfa5021c4..000000000
--- a/layout/reftests/marquee/425247-1.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html><head>
-<title>Bug 425247 – Marquee with uppercase UP or DOWN as direction doesn't work properly</title>
-</head>
-<body>
-<MARQUEE DIRECTION=UP BGCOLOR=MAGENTA BEHAVIOR=ALTERNATE SCROLLAMOUNT=0>
-<MARQUEE BGCOLOR=YELLOW BEHAVIOR=ALTERNATE SCROLLAMOUNT=0>marquee up</MARQUEE>
-</MARQUEE>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/425247-2-ref.html b/layout/reftests/marquee/425247-2-ref.html
deleted file mode 100644
index 564d74979..000000000
--- a/layout/reftests/marquee/425247-2-ref.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html><head>
-<title>Bug 425247 – Marquee with uppercase UP or DOWN as direction doesn't work properly</title>
-</head>
-<body>
-<marquee direction="down" bgcolor="magenta" behavior="alternate" scrollamount="0">
-<marquee bgcolor="yellow" behavior="alternate" scrollamount="0">marquee down</marquee>
-</marquee>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/425247-2.html b/layout/reftests/marquee/425247-2.html
deleted file mode 100644
index 4cb66b901..000000000
--- a/layout/reftests/marquee/425247-2.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html><head>
-<title>Bug 425247 – Marquee with uppercase UP or DOWN as direction doesn't work properly</title>
-</head>
-<body>
-<MARQUEE DIRECTION=DOWN BGCOLOR=MAGENTA BEHAVIOR=ALTERNATE SCROLLAMOUNT=0>
-<MARQUEE BGCOLOR=YELLOW BEHAVIOR=ALTERNATE SCROLLAMOUNT=0>marquee down</MARQUEE>
-</MARQUEE>
-</body>
-</html>
\ No newline at end of file
diff --git a/layout/reftests/marquee/429849-1-ref.html b/layout/reftests/marquee/429849-1-ref.html
deleted file mode 100644
index 3b9c3166e..000000000
--- a/layout/reftests/marquee/429849-1-ref.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>

-<head>

-<title>Bug 429849 – marquee text not on one line , part of this line on top and second part on bottom</title>

-</head>

-<body>

-<marquee behavior=alternate scrollamount=0 direction=right>

-This text should be on one line

-</marquee>

-</body>

-</html>

diff --git a/layout/reftests/marquee/429849-1.html b/layout/reftests/marquee/429849-1.html
deleted file mode 100644
index 6b1757fd0..000000000
--- a/layout/reftests/marquee/429849-1.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<html>

-<head>

-<title>Bug 429849 – marquee text not on one line , part of this line on top and second part on bottom</title>

-</head>

-<body>

-<marquee behavior=alternate scrollamount=0 direction=right>

-This text <script>document.body.offsetHeight;</script>should be on one line

-</marquee>

-</body>

-</html>

diff --git a/layout/reftests/marquee/reftest-stylo.list b/layout/reftests/marquee/reftest-stylo.list
deleted file mode 100644
index 26c77acf9..000000000
--- a/layout/reftests/marquee/reftest-stylo.list
+++ /dev/null
@@ -1,16 +0,0 @@
-# DO NOT EDIT! This is a auto-generated temporary list for Stylo testing
-random-if((B2G&&browserIsRemote)||Mulet) == 166591-dynamic-1.html 166591-dynamic-1.html
-# Initial mulet triage: parity with B2G/B2G Desktop
-skip-if(B2G) fuzzy-if(Android,8,50) == 336736-1a.html 336736-1a.html
-# Bug 1168747 for random b2g timeouts
-skip-if(B2G) fuzzy-if(Android,8,50) == 336736-1b.html 336736-1b.html
-# Bug 1168747 for random b2g timeouts
-== 406073-1.html 406073-1.html
-== 407016-2.html 407016-2.html
-fuzzy-if(Android,8,220) == 413027-4.html 413027-4.html
-fuzzy-if(Android,8,30) == 425247-1.html 425247-1.html
-fuzzy-if(Android,8,30) == 425247-2.html 425247-2.html
-random == 429849-1.html 429849-1.html
-# bug 432288
-== 1160342-1.html 1160342-1.html
-== 1160342-2.html 1160342-2.html
diff --git a/layout/reftests/marquee/reftest.list b/layout/reftests/marquee/reftest.list
deleted file mode 100644
index f033b4634..000000000
--- a/layout/reftests/marquee/reftest.list
+++ /dev/null
@@ -1,11 +0,0 @@
-== 166591-dynamic-1.html 166591-dynamic-1-ref.html
-fuzzy-if(Android,8,50) == 336736-1a.html 336736-1-ref.html
-fuzzy-if(Android,8,50) == 336736-1b.html 336736-1-ref.html
-== 406073-1.html 406073-1-ref.html
-== 407016-2.html 407016-2-ref.html
-fuzzy-if(Android,8,220) == 413027-4.html 413027-4-ref.html
-fuzzy-if(Android,8,30) == 425247-1.html 425247-1-ref.html
-fuzzy-if(Android,8,30) == 425247-2.html 425247-2-ref.html
-random == 429849-1.html 429849-1-ref.html # bug 432288
-== 1160342-1.html 1160342-ref.html
-== 1160342-2.html 1160342-ref.html
diff --git a/layout/reftests/moz.build b/layout/reftests/moz.build
index d486e5639..3ab3d4246 100644
--- a/layout/reftests/moz.build
+++ b/layout/reftests/moz.build
@@ -201,8 +201,6 @@ with Files('list-item/**'):
     BUG_COMPONENT = ('Core', 'Layout: Block and Inline')
 with Files('margin-collapsing/**'):
     BUG_COMPONENT = ('Core', 'Layout: Block and Inline')
-with Files('marquee/**'):
-    BUG_COMPONENT = ('Core', 'CSS Parsing and Computation')
 with Files('mathml/**'):
     BUG_COMPONENT = ('Core', 'MathML')
 with Files('native-theme/**'):
diff --git a/layout/reftests/reftest-stylo.list b/layout/reftests/reftest-stylo.list
index 7d4078f22..54afc3dac 100644
--- a/layout/reftests/reftest-stylo.list
+++ b/layout/reftests/reftest-stylo.list
@@ -249,9 +249,6 @@ include mathml/reftest-stylo.list
 # margin-collapsing
 include margin-collapsing/reftest-stylo.list
 
-# marquee/
-include marquee/reftest-stylo.list
-
 # native-theme/
 # skipping for B2G since something around radio-nonnative.html makes the whole suite hang
 skip-if(B2G||Android||Mulet) include native-theme/reftest-stylo.list
diff --git a/layout/reftests/reftest.list b/layout/reftests/reftest.list
index b2da025d5..b06eba58e 100644
--- a/layout/reftests/reftest.list
+++ b/layout/reftests/reftest.list
@@ -247,9 +247,6 @@ include mathml/reftest.list
 # margin-collapsing
 include margin-collapsing/reftest.list
 
-# marquee/
-include marquee/reftest.list
-
 # native-theme/
 # (no XUL theme on Android)
 skip-if(Android) include native-theme/reftest.list
diff --git a/layout/reftests/writing-mode/reftest-stylo.list b/layout/reftests/writing-mode/reftest-stylo.list
index 5574d9b5b..76f6813e6 100644
--- a/layout/reftests/writing-mode/reftest-stylo.list
+++ b/layout/reftests/writing-mode/reftest-stylo.list
@@ -65,8 +65,6 @@ HTTP(..) == 1115916-1-vertical-metrics.html 1115916-1-vertical-metrics.html
 == ua-style-sheet-border-3.html ua-style-sheet-border-3.html
 == ua-style-sheet-border-4.html ua-style-sheet-border-4.html
 == ua-style-sheet-border-5.html ua-style-sheet-border-5.html
-== ua-style-sheet-size-1.html ua-style-sheet-size-1.html
-== ua-style-sheet-size-2.html ua-style-sheet-size-2.html
 
 == ua-style-sheet-fieldset-1.html ua-style-sheet-fieldset-1.html
 skip-if(Android||B2G||Mulet||(winWidget&&!/^Windows\x20NT\x205\.1/.test(http.oscpu))) == ua-style-sheet-textarea-1.html ua-style-sheet-textarea-1.html
diff --git a/layout/reftests/writing-mode/reftest.list b/layout/reftests/writing-mode/reftest.list
index b670dbd13..13c58d2cb 100644
--- a/layout/reftests/writing-mode/reftest.list
+++ b/layout/reftests/writing-mode/reftest.list
@@ -58,8 +58,6 @@ fuzzy(116,94) fuzzy-if(winWidget,135,124) HTTP(..) == 1115916-1-vertical-metrics
 == ua-style-sheet-border-3.html ua-style-sheet-border-3-ref.html
 == ua-style-sheet-border-4.html ua-style-sheet-border-4-ref.html
 == ua-style-sheet-border-5.html ua-style-sheet-border-5-ref.html
-== ua-style-sheet-size-1.html ua-style-sheet-size-1-ref.html
-== ua-style-sheet-size-2.html ua-style-sheet-size-2-ref.html
 
 == ua-style-sheet-fieldset-1.html ua-style-sheet-fieldset-1-ref.html
 skip-if(Android||(winWidget&&!/^Windows\x20NT\x205\.1/.test(http.oscpu))) == ua-style-sheet-textarea-1.html ua-style-sheet-textarea-1a-ref.html
diff --git a/layout/reftests/writing-mode/ua-style-sheet-size-1-ref.html b/layout/reftests/writing-mode/ua-style-sheet-size-1-ref.html
deleted file mode 100644
index 06f6d5700..000000000
--- a/layout/reftests/writing-mode/ua-style-sheet-size-1-ref.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Test for logical margins on marquee elements in the UA style sheet</title>
-<style>
-.v-rl { writing-mode: vertical-rl; }
-.ltr, .rtl, .v-rl { border: 1px solid blue; padding: 16px; }
-marquee { background-color: yellow; color: transparent; }
-.ltr marquee { width: -moz-available; height: auto; }
-.rtl marquee { width: -moz-available; height: auto; }
-.v-rl marquee { width: auto; height: -moz-available; }
-</style>
-<div class=ltr>
-  <marquee>A</marquee>
-</div>
-<div class=rtl dir=rtl>
-  <marquee>A</marquee>
-</div>
-<!-- disabled until bug 1132308
-<div class=v-rl>
-  <marquee>A</marquee>
-</div>
--->
diff --git a/layout/reftests/writing-mode/ua-style-sheet-size-1.html b/layout/reftests/writing-mode/ua-style-sheet-size-1.html
deleted file mode 100644
index 754908501..000000000
--- a/layout/reftests/writing-mode/ua-style-sheet-size-1.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Test for logical sizes on marquee elements in the UA style sheet</title>
-<style>
-.v-rl { writing-mode: vertical-rl; }
-.ltr, .rtl, .v-rl { border: 1px solid blue; padding: 16px; }
-marquee { background-color: yellow; color: transparent; }
-</style>
-<div class=ltr>
-  <marquee>A</marquee>
-</div>
-<div class=rtl dir=rtl>
-  <marquee>A</marquee>
-</div>
-<!-- disabled until bug 1132308
-<div class=v-rl>
-  <marquee>A</marquee>
-</div>
--->
diff --git a/layout/reftests/writing-mode/ua-style-sheet-size-2-ref.html b/layout/reftests/writing-mode/ua-style-sheet-size-2-ref.html
deleted file mode 100644
index 3c53326ba..000000000
--- a/layout/reftests/writing-mode/ua-style-sheet-size-2-ref.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Test for logical margins on marquee elements in the UA style sheet</title>
-<style>
-.v-rl { writing-mode: vertical-rl; }
-.ltr, .rtl, .v-rl { border: 1px solid blue; padding: 16px; }
-marquee { background-color: yellow; color: transparent; }
-.ltr marquee { width: -moz-available; height: 200px; }
-.rtl marquee { width: -moz-available; height: 200px; }
-.v-rl marquee { width: 200px; height: -moz-available; }
-</style>
-<div class=ltr>
-  <marquee direction=down>A</marquee>
-</div>
-<div class=rtl dir=rtl>
-  <marquee direction=down>A</marquee>
-</div>
-<!-- disabled until bug 1132308
-<div class=v-rl>
-  <marquee direction=down>A</marquee>
-</div>
--->
diff --git a/layout/reftests/writing-mode/ua-style-sheet-size-2.html b/layout/reftests/writing-mode/ua-style-sheet-size-2.html
deleted file mode 100644
index 1c0be6f4b..000000000
--- a/layout/reftests/writing-mode/ua-style-sheet-size-2.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<meta charset=utf-8>
-<title>Test for logical sizes on marquee elements in the UA style sheet</title>
-<style>
-.v-rl { writing-mode: vertical-rl; }
-.ltr, .rtl, .v-rl { border: 1px solid blue; padding: 16px; }
-marquee { background-color: yellow; color: transparent; }
-</style>
-<div class=ltr>
-  <marquee direction=down>A</marquee>
-</div>
-<div class=rtl dir=rtl>
-  <marquee direction=down>A</marquee>
-</div>
-<!-- disabled until bug 1132308
-<div class=v-rl>
-  <marquee direction=down>A</marquee>
-</div>
--->
diff --git a/layout/style/contenteditable.css b/layout/style/contenteditable.css
index c550bc7c9..6d569f75e 100644
--- a/layout/style/contenteditable.css
+++ b/layout/style/contenteditable.css
@@ -80,15 +80,6 @@ input[contenteditable="true"][type="file"] {
   -moz-user-focus: none !important;
 }
 
-/* emulation of non-standard HTML <marquee> tag */
-marquee:-moz-read-write {
-  -moz-binding: url('chrome://xbl-marquee/content/xbl-marquee.xml#marquee-horizontal-editable');
-}
-
-marquee[direction="up"]:-moz-read-write, marquee[direction="down"]:-moz-read-write {
-  -moz-binding: url('chrome://xbl-marquee/content/xbl-marquee.xml#marquee-vertical-editable');
-}
-
 *|*:-moz-read-write > input[type="hidden"],
 input[contenteditable="true"][type="hidden"] {
   border: 1px solid black !important;
diff --git a/layout/style/moz.build b/layout/style/moz.build
index ff06b5101..bdc86ee99 100644
--- a/layout/style/moz.build
+++ b/layout/style/moz.build
@@ -19,7 +19,6 @@ with Files('CSSRuleList.*'):
 with Files('nsDOM*'):
     BUG_COMPONENT = ('Core', 'DOM: CSS Object Model')
 
-DIRS += ['xbl-marquee']
 TEST_DIRS += ['test']
 
 XPIDL_SOURCES += [
diff --git a/layout/style/nsCSSParser.cpp b/layout/style/nsCSSParser.cpp
index 556e35406..f6b84bfac 100644
--- a/layout/style/nsCSSParser.cpp
+++ b/layout/style/nsCSSParser.cpp
@@ -5941,8 +5941,6 @@ CSSParserImpl::ParseAttributeSelector(int32_t&       aDataMask,
               "language",
               "defer",
               "type",
-              // additional attributes not in HTML4
-              "direction", // marquee
               nullptr
             };
             short i = 0;
@@ -15318,17 +15316,17 @@ CSSParserImpl::ParseFontFeatureSettings(nsCSSValue& aValue)
   return true;
 }
 
-bool

-CSSParserImpl::ParseFontVariationSettings(nsCSSValue& aValue)

-{

-  // TODO: Actually implement this.

-  

-  // This stub is here because websites insist on considering this

-  // very hardware-dependent and O.S.-variable low-level font-control

-  // as a "critical feature" which it isn't as there is 0 guarantee

-  // that font variation settings are supported or honored by any

-  // operating system used by the client.

-  return true;

+bool
+CSSParserImpl::ParseFontVariationSettings(nsCSSValue& aValue)
+{
+  // TODO: Actually implement this.
+  
+  // This stub is here because websites insist on considering this
+  // very hardware-dependent and O.S.-variable low-level font-control
+  // as a "critical feature" which it isn't as there is 0 guarantee
+  // that font variation settings are supported or honored by any
+  // operating system used by the client.
+  return true;
 }
 
 bool
diff --git a/layout/style/res/html.css b/layout/style/res/html.css
index 44e41c8d0..b975bf0c9 100644
--- a/layout/style/res/html.css
+++ b/layout/style/res/html.css
@@ -64,7 +64,6 @@ legend,
 li,
 listing,
 main,
-marquee,
 menu,
 nav,
 noframes,
@@ -819,25 +818,9 @@ dialog:not([open]) {
   display: none;
 }
 
-/* emulation of non-standard HTML <marquee> tag */
-marquee {
-  inline-size: -moz-available;
-  display: inline-block;
-  vertical-align: text-bottom;
-  text-align: start;
-  -moz-binding: url('chrome://xbl-marquee/content/xbl-marquee.xml#marquee-horizontal');
-}
-
-marquee[direction="up"], marquee[direction="down"] {
-  -moz-binding: url('chrome://xbl-marquee/content/xbl-marquee.xml#marquee-vertical');
-  block-size: 200px;
-}
-
 /* PRINT ONLY rules follow */
 @media print {
 
-  marquee { -moz-binding: none; }
-
 }
 
 /* Ruby */
diff --git a/layout/style/xbl-marquee/jar.mn b/layout/style/xbl-marquee/jar.mn
deleted file mode 100644
index 9247cb4a1..000000000
--- a/layout/style/xbl-marquee/jar.mn
+++ /dev/null
@@ -1,8 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-toolkit.jar:
-%   content xbl-marquee %content/xbl-marquee/ contentaccessible=yes
-    content/xbl-marquee/xbl-marquee.xml
-    content/xbl-marquee/xbl-marquee.css
diff --git a/layout/style/xbl-marquee/moz.build b/layout/style/xbl-marquee/moz.build
deleted file mode 100644
index eb4454d28..000000000
--- a/layout/style/xbl-marquee/moz.build
+++ /dev/null
@@ -1,7 +0,0 @@
-# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
-# vim: set filetype=python:
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-JAR_MANIFESTS += ['jar.mn']
\ No newline at end of file
diff --git a/layout/style/xbl-marquee/xbl-marquee.css b/layout/style/xbl-marquee/xbl-marquee.css
deleted file mode 100644
index e6d3ee94b..000000000
--- a/layout/style/xbl-marquee/xbl-marquee.css
+++ /dev/null
@@ -1,12 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/* PRINT ONLY rules */
-@media print {
-
-  marquee > * > * { 
-    margin: 0 !important; 
-    padding: 0 !important;
-  } /* This hack is needed until bug 119078 gets fixed */
-}
diff --git a/layout/style/xbl-marquee/xbl-marquee.xml b/layout/style/xbl-marquee/xbl-marquee.xml
deleted file mode 100644
index bb837624d..000000000
--- a/layout/style/xbl-marquee/xbl-marquee.xml
+++ /dev/null
@@ -1,733 +0,0 @@
-<?xml version="1.0"?>
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-
-<bindings id="marqueeBindings"
-          xmlns="http://www.mozilla.org/xbl"
-          xmlns:html="http://www.w3.org/1999/xhtml"
-          xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
-          xmlns:xbl="http://www.mozilla.org/xbl">
-
-
-  <binding id="marquee" bindToUntrustedContent="true">
-
-    <resources>
-      <stylesheet src="chrome://xbl-marquee/content/xbl-marquee.css"/>
-    </resources>
-    <implementation>
-
-      <property name="scrollAmount" exposeToUntrustedContent="true">
-        <getter>
-          <![CDATA[
-          this._mutationActor(this._mutationObserver.takeRecords());
-          return this._scrollAmount;
-          ]]>
-        </getter>
-        <setter>
-          <![CDATA[
-          var val = parseInt(val);
-          if (val < 0) {
-            return;
-          }
-          if (isNaN(val)) {
-            val = 0;
-          }
-          this.setAttribute("scrollamount", val);
-          ]]>
-        </setter>
-      </property>
-
-      <property name="scrollDelay" exposeToUntrustedContent="true">
-        <getter>
-          <![CDATA[
-          this._mutationActor(this._mutationObserver.takeRecords());
-          var val = parseInt(this.getAttribute("scrolldelay"));
-
-          if (val <= 0 || isNaN(val)) {
-            return this._scrollDelay;
-          }
-
-          return val;
-          ]]>
-        </getter>
-        <setter>
-          var val = parseInt(val);
-          if (val > 0 ) {
-            this.setAttribute("scrolldelay", val);
-          }
-        </setter>
-      </property>
-
-      <property name="trueSpeed" exposeToUntrustedContent="true">
-        <getter>
-          <![CDATA[
-          if (!this.hasAttribute("truespeed")) {
-            return false;
-          }
-
-          return true;
-          ]]>
-        </getter>
-        <setter>
-          <![CDATA[
-          if (val) {
-            this.setAttribute("truespeed", "");
-          } else {
-            this.removeAttribute('truespeed');
-          }
-          ]]>
-        </setter>
-      </property>
-
-      <property name="direction" exposeToUntrustedContent="true">
-        <getter>
-          this._mutationActor(this._mutationObserver.takeRecords());
-          return this._direction;
-        </getter>
-        <setter>
-          <![CDATA[
-          if (typeof val == 'string') {
-            val = val.toLowerCase();
-          } else {
-            return;
-          }
-          if (val != 'left' && val != 'right' && val != 'up' && val != 'down') {
-            val = 'left';
-          }
-
-          this.setAttribute("direction", val);
-          ]]>
-        </setter>
-      </property>
-
-      <property name="behavior" exposeToUntrustedContent="true">
-        <getter>
-          this._mutationActor(this._mutationObserver.takeRecords());
-          return this._behavior;
-        </getter>
-        <setter>
-          if (typeof val == 'string') {
-            val = val.toLowerCase();
-          }
-          if (val == "alternate" || val == "slide" || val == 'scroll') {
-            this.setAttribute("behavior", val);
-          }
-        </setter>
-      </property>
-
-
-      <property name="loop" exposeToUntrustedContent="true">
-        <getter>
-          <![CDATA[
-          this._mutationActor(this._mutationObserver.takeRecords());
-          return this._loop;
-          ]]>
-        </getter>
-        <setter>
-          <![CDATA[
-          var val = parseInt(val);
-          if (val == -1 || val > 0) {
-            this.setAttribute("loop", val);
-          }
-          ]]>
-        </setter>
-      </property>
-
-
-      <property name="onstart" exposeToUntrustedContent="true">
-        <getter>
-          return this.getAttribute("onstart");
-        </getter>
-        <setter>
-          this._setEventListener("start", val, true);
-          this.setAttribute("onstart", val);
-        </setter>
-      </property>
-
-      <property name="onfinish" exposeToUntrustedContent="true">
-        <getter>
-          return this.getAttribute("onfinish");
-        </getter>
-        <setter>
-          this._setEventListener("finish", val, true);
-          this.setAttribute("onfinish", val);
-        </setter>
-      </property>
-
-      <property name="onbounce" exposeToUntrustedContent="true">
-        <getter>
-          return this.getAttribute("onbounce");
-        </getter>
-        <setter>
-          this._setEventListener("bounce", val, true);
-          this.setAttribute("onbounce", val);
-        </setter>
-      </property>
-
-      <property name="outerDiv"
-        onget="return document.getAnonymousNodes(this)[0]"
-      />
-
-      <property name="innerDiv"
-        onget="return document.getAnonymousElementByAttribute(this, 'class', 'innerDiv');"
-      />
-
-      <property name="height" exposeToUntrustedContent="true"
-        onget="return this.getAttribute('height');"
-        onset="this.setAttribute('height', val);"
-      />
-
-      <property name="width" exposeToUntrustedContent="true"
-        onget="return this.getAttribute('width');"
-        onset="this.setAttribute('width', val);"
-      />
-
-      <method name="_set_scrollDelay">
-        <parameter name="aValue"/>
-        <body>
-        <![CDATA[
-          aValue = parseInt(aValue);
-          if (aValue <= 0) {
-            return;
-          } else if (isNaN(aValue)) {
-            this._scrollDelay = 85;
-          } else if (aValue < 60) {
-            if (this.trueSpeed == true) {
-              this._scrollDelay = aValue;
-            } else {
-              this._scrollDelay = 60;
-            }
-          } else {
-            this._scrollDelay = aValue;
-          }
-        ]]>
-        </body>
-      </method>
-
-      <method name="_set_scrollAmount">
-        <parameter name="aValue"/>
-        <body>
-        <![CDATA[
-          aValue = parseInt(aValue);
-          if (isNaN(aValue)) {
-            this._scrollAmount = 6;
-          } else if (aValue < 0) {
-            return;
-          } else {
-            this._scrollAmount = aValue;
-          }
-        ]]>
-        </body>
-      </method>
-
-      <method name="_set_behavior">
-        <parameter name="aValue"/>
-        <body>
-        <![CDATA[
-          if (typeof aValue == 'string') {
-            aValue = aValue.toLowerCase();
-          }
-          if (aValue != 'alternate' && aValue != 'slide' && aValue != 'scroll') {
-            this._behavior = 'scroll';
-          } else {
-            this._behavior = aValue;
-          }
-        ]]>
-        </body>
-      </method>
-
-      <method name="_set_direction">
-        <parameter name="aValue"/>
-        <body>
-        <![CDATA[
-          if (typeof aValue == 'string') {
-            aValue = aValue.toLowerCase();
-          }
-          if (aValue != 'left' && aValue != 'right' && aValue != 'up' && aValue != 'down') {
-            aValue = 'left';
-          }
-
-          if (aValue != this._direction) {
-            this.startNewDirection = true;
-          }
-          this._direction = aValue;
-        ]]>
-        </body>
-      </method>
-
-      <method name="_set_loop">
-        <parameter name="aValue"/>
-        <body>
-          <![CDATA[
-          var aValue = parseInt(aValue);
-          if (aValue == 0) {
-            return;
-          }
-          if (isNaN(aValue) || aValue <= -1) {
-            aValue = -1;
-          }
-          this._loop = aValue;
-          ]]>
-        </body>
-      </method>
-
-      <method name="_setEventListener">
-        <parameter name="aName"/>
-        <parameter name="aValue"/>
-        <parameter name="aIgnoreNextCall"/>
-        <body>
-          <![CDATA[
-          // _setEventListener is only used for setting the attribute event
-          // handlers, which we want to ignore if our document is sandboxed
-          // without the allow-scripts keyword.
-          if (document.hasScriptsBlockedBySandbox) {
-            return true;
-          }
-
-          // attribute event handlers should only be added if the
-          // document's CSP allows it.
-          if (!document.inlineScriptAllowedByCSP) {
-            return true;
-          }
-
-          if (this._ignoreNextCall) {
-            return this._ignoreNextCall = false;
-          }
-
-          if (aIgnoreNextCall) {
-            this._ignoreNextCall = true;
-          }
-
-          if (typeof this["_on" + aName] == 'function') {
-            this.removeEventListener(aName, this["_on" + aName], false);
-          }
-
-          switch (typeof aValue)
-          {
-            case "function":
-              this["_on" + aName] = aValue;
-              this.addEventListener(aName, this["_on" + aName], false);
-            break;
-
-            case "string":
-              if (!aIgnoreNextCall) {
-                try {
-                  // Function Xrays make this simple and safe. \o/
-                  this["_on" + aName] = new window.Function("event", aValue);
-                }
-                catch(e) {
-                  return false;
-                }
-                this.addEventListener(aName, this["_on" + aName], false);
-              }
-              else {
-                this["_on" + aName] = aValue;
-              }
-            break;
-
-            case "object":
-              this["_on" + aName] = aValue;
-            break;
-
-            default:
-              this._ignoreNextCall = false;
-              throw new Error("Invalid argument for Marquee::on" + aName);
-          }
-          return true;
-          ]]>
-        </body>
-      </method>
-
-      <method name="_fireEvent">
-        <parameter name="aName"/>
-        <parameter name="aBubbles"/>
-        <parameter name="aCancelable"/>
-        <body>
-        <![CDATA[
-          var e = document.createEvent("Events");
-          e.initEvent(aName, aBubbles, aCancelable);
-          this.dispatchEvent(e);
-        ]]>
-        </body>
-      </method>
-
-      <method name="start" exposeToUntrustedContent="true">
-        <body>
-        <![CDATA[
-          if (this.runId == 0) {
-            var myThis = this;
-            var lambda = function myTimeOutFunction(){myThis._doMove(false);}
-            this.runId = window.setTimeout(lambda, this._scrollDelay - this._deltaStartStop);
-            this._deltaStartStop = 0;
-          }
-        ]]>
-        </body>
-      </method>
-
-      <method name="stop" exposeToUntrustedContent="true">
-        <body>
-        <![CDATA[
-          if (this.runId != 0) {
-            this._deltaStartStop = Date.now()- this._lastMoveDate;
-            clearTimeout(this.runId);
-          }
-
-          this.runId = 0;
-        ]]>
-        </body>
-      </method>
-
-      <method name="_doMove">
-        <parameter name="aResetPosition"/>
-        <body>
-        <![CDATA[
-          this._lastMoveDate = Date.now();
-
-          //startNewDirection is true at first load and whenever the direction is changed
-          if (this.startNewDirection) {
-            this.startNewDirection = false; //we only want this to run once every scroll direction change
-
-            var corrvalue = 0;
-
-            switch (this._direction)
-            {
-              case "up":
-                var height = document.defaultView.getComputedStyle(this, "").height;
-                this.outerDiv.style.height = height;
-                if (this.originalHeight > this.outerDiv.offsetHeight) {
-                    corrvalue = this.originalHeight - this.outerDiv.offsetHeight;
-                }
-                this.innerDiv.style.padding = height + " 0";
-                this.dirsign = 1;
-                this.startAt = (this._behavior == 'alternate') ? (this.originalHeight - corrvalue) : 0;
-                this.stopAt  = (this._behavior == 'alternate' || this._behavior == 'slide') ? 
-                                (parseInt(height) + corrvalue) : (this.originalHeight + parseInt(height));
-              break;
-
-              case "down":
-                var height = document.defaultView.getComputedStyle(this, "").height;
-                this.outerDiv.style.height = height;
-                if (this.originalHeight > this.outerDiv.offsetHeight) {
-                    corrvalue = this.originalHeight - this.outerDiv.offsetHeight;
-                }
-                this.innerDiv.style.padding = height + " 0";
-                this.dirsign = -1;
-                this.startAt  = (this._behavior == 'alternate') ?
-                                (parseInt(height) + corrvalue) : (this.originalHeight + parseInt(height));
-                this.stopAt = (this._behavior == 'alternate' || this._behavior == 'slide') ? 
-                              (this.originalHeight - corrvalue) : 0;
-              break;
-
-              case "right":
-                if (this.innerDiv.offsetWidth > this.outerDiv.offsetWidth) {
-                    corrvalue = this.innerDiv.offsetWidth - this.outerDiv.offsetWidth;
-                }
-                this.dirsign = -1;
-                this.stopAt  = (this._behavior == 'alternate' || this._behavior == 'slide') ? 
-                               (this.innerDiv.offsetWidth - corrvalue) : 0;
-                this.startAt = this.outerDiv.offsetWidth + ((this._behavior == 'alternate') ? 
-                               corrvalue : (this.innerDiv.offsetWidth + this.stopAt));   
-              break;
-
-              case "left":
-              default:
-                if (this.innerDiv.offsetWidth > this.outerDiv.offsetWidth) {
-                    corrvalue = this.innerDiv.offsetWidth - this.outerDiv.offsetWidth;
-                }
-                this.dirsign = 1;
-                this.startAt = (this._behavior == 'alternate') ? (this.innerDiv.offsetWidth - corrvalue) : 0;
-                this.stopAt  = this.outerDiv.offsetWidth + 
-                               ((this._behavior == 'alternate' || this._behavior == 'slide') ? 
-                               corrvalue : (this.innerDiv.offsetWidth + this.startAt));
-            }
-
-            if (aResetPosition) {
-              this.newPosition = this.startAt;
-              this._fireEvent("start", false, false);
-            }
-          } //end if
-
-          this.newPosition = this.newPosition + (this.dirsign * this._scrollAmount);
-
-          if ((this.dirsign == 1 && this.newPosition > this.stopAt) ||
-              (this.dirsign == -1 && this.newPosition < this.stopAt))
-          {
-            switch (this._behavior) 
-            {
-              case 'alternate':
-                // lets start afresh
-                this.startNewDirection = true;
-
-                // swap direction
-                const swap = {left: "right", down: "up", up: "down", right: "left"};
-                this._direction = swap[this._direction];
-                this.newPosition = this.stopAt;
-
-                if ((this._direction == "up") || (this._direction == "down")) {
-                  this.outerDiv.scrollTop = this.newPosition;
-                } else {
-                  this.outerDiv.scrollLeft = this.newPosition;
-                }
-
-                if (this._loop != 1) {
-                  this._fireEvent("bounce", false, true);
-                }
-              break;
-
-              case 'slide':
-                if (this._loop > 1) {
-                  this.newPosition = this.startAt;
-                }
-              break;
-
-              default:
-                this.newPosition = this.startAt;
-
-                if ((this._direction == "up") || (this._direction == "down")) {
-                  this.outerDiv.scrollTop = this.newPosition;
-                } else {
-                  this.outerDiv.scrollLeft = this.newPosition;
-                }
-
-                //dispatch start event, even when this._loop == 1, comp. with IE6
-                this._fireEvent("start", false, false);
-            }
-
-            if (this._loop > 1) {
-              this._loop--;
-            } else if (this._loop == 1) {
-              if ((this._direction == "up") || (this._direction == "down")) {
-                this.outerDiv.scrollTop = this.stopAt;
-              } else {
-                this.outerDiv.scrollLeft = this.stopAt;
-              }
-              this.stop();
-              this._fireEvent("finish", false, true);
-              return;
-            }
-          }
-          else {
-            if ((this._direction == "up") || (this._direction == "down")) {
-              this.outerDiv.scrollTop = this.newPosition;
-            } else {
-              this.outerDiv.scrollLeft = this.newPosition;
-            }
-          }
-
-          var myThis = this;
-          var lambda = function myTimeOutFunction(){myThis._doMove(false);}
-          this.runId = window.setTimeout(lambda, this._scrollDelay);
-        ]]>
-        </body>
-      </method>
-
-      <method name="init">
-        <body>
-        <![CDATA[
-          this.stop();
-
-          if ((this._direction != "up") && (this._direction != "down")) {
-            var width = window.getComputedStyle(this, "").width;
-            this.innerDiv.parentNode.style.margin = '0 ' + width;
-
-            //XXX Adding the margin sometimes causes the marquee to widen, 
-            // see testcase from bug bug 364434: 
-            // https://bugzilla.mozilla.org/attachment.cgi?id=249233
-            // Just add a fixed width with current marquee's width for now
-            if (width != window.getComputedStyle(this, "").width) {
-              var width = window.getComputedStyle(this, "").width;
-              this.outerDiv.style.width = width;
-              this.innerDiv.parentNode.style.margin = '0 ' + width;
-            }
-          }
-          else {
-            // store the original height before we add padding
-            this.innerDiv.style.padding = 0;
-            this.originalHeight = this.innerDiv.offsetHeight;
-          }
-
-          this._doMove(true);
-        ]]>
-        </body>
-      </method>
-
-      <method name="_mutationActor">
-        <parameter name="aMutations"/>
-        <body>
-        <![CDATA[
-          while (aMutations.length > 0) {
-            var mutation = aMutations.shift();
-            var attrName = mutation.attributeName.toLowerCase();
-            var oldValue = mutation.oldValue;
-            var target = mutation.target;
-            var newValue = target.getAttribute(attrName);
-
-            if (oldValue != newValue) {
-              switch (attrName) {
-                case "loop":
-                  target._set_loop(newValue);
-                  if (target.rundId == 0) {
-                    target.start();
-                  }
-                  break;
-                case "scrollamount":
-                  target._set_scrollAmount(newValue);
-                  break;
-                case "scrolldelay":
-                  target._set_scrollDelay(newValue);
-                  target.stop();
-                  target.start();
-                  break;
-                case "truespeed":
-                  //needed to update target._scrollDelay
-                  var myThis = target;
-                  var lambda = function() {myThis._set_scrollDelay(myThis.getAttribute('scrolldelay'));}
-                  window.setTimeout(lambda, 0);
-                  break;
-                case "behavior":
-                  target._set_behavior(newValue);
-                  target.startNewDirection = true;
-                  if ((oldValue == "slide" && target.newPosition == target.stopAt) ||
-                      newValue == "alternate" || newValue == "slide") {
-                    target.stop();
-                    target._doMove(true);
-                  }
-                  break;
-                case "direction":
-                  if (!newValue) {
-                    newValue = "left";
-                  }
-                  target._set_direction(newValue);
-                  break;
-                case "width":
-                case "height":
-                  target.startNewDirection = true;
-                  break;
-                case "onstart":
-                  target._setEventListener("start", newValue);
-                  break;
-                case "onfinish":
-                  target._setEventListener("finish", newValue);
-                  break;
-                case "onbounce":
-                  target._setEventListener("bounce", newValue);
-                  break;
-              }
-            }
-          }
-        ]]>
-        </body>
-      </method>
-
-      <constructor>
-        <![CDATA[
-          // Set up state.
-          this._scrollAmount = 6;
-          this._scrollDelay = 85;
-          this._direction = "left";
-          this._behavior = "scroll";
-          this._loop = -1;
-          this.dirsign = 1;
-          this.startAt = 0;
-          this.stopAt = 0;
-          this.newPosition = 0;
-          this.runId = 0;
-          this.originalHeight = 0;
-          this.startNewDirection = true;
-
-          // hack needed to fix js error, see bug 386470
-          var myThis = this;
-          var lambda = function myScopeFunction() { if (myThis.init) myThis.init(); }
-
-          this._set_direction(this.getAttribute('direction'));
-          this._set_behavior(this.getAttribute('behavior'));
-          this._set_scrollDelay(this.getAttribute('scrolldelay'));
-          this._set_scrollAmount(this.getAttribute('scrollamount'));
-          this._set_loop(this.getAttribute('loop'));
-          this._setEventListener("start", this.getAttribute("onstart"));
-          this._setEventListener("finish", this.getAttribute("onfinish"));
-          this._setEventListener("bounce", this.getAttribute("onbounce"));
-          this.startNewDirection = true;
-
-          this._mutationObserver = new MutationObserver(this._mutationActor);
-          this._mutationObserver.observe(this, { attributes: true,
-            attributeOldValue: true,
-            attributeFilter: ['loop', 'scrollamount', 'scrolldelay', '', 'truespeed', 'behavior',
-              'direction', 'width', 'height', 'onstart', 'onfinish', 'onbounce'] });
-
-          // init needs to be run after the page has loaded in order to calculate
-          // the correct height/width
-          if (document.readyState == "complete") {
-            lambda();
-          } else {
-            window.addEventListener("load", lambda, false);
-          }
-        ]]>
-      </constructor>
-    </implementation>
-
-  </binding>
-
-  <binding id="marquee-horizontal" bindToUntrustedContent="true"
-           extends="chrome://xbl-marquee/content/xbl-marquee.xml#marquee"
-           inheritstyle="false">
-
-    <!-- White-space isn't allowed because a marquee could be 
-         inside 'white-space: pre' -->
-    <content>
-      <html:div style="display: -moz-box; overflow: hidden; width: -moz-available;"
-        ><html:div style="display: -moz-box;"
-          ><html:div class="innerDiv" style="display: table; border-spacing: 0;"
-            ><html:div
-              ><children
-            /></html:div
-          ></html:div
-        ></html:div
-      ></html:div>
-    </content>
-
-  </binding>
-
-  <binding id="marquee-vertical" bindToUntrustedContent="true"
-           extends="chrome://xbl-marquee/content/xbl-marquee.xml#marquee"
-           inheritstyle="false">
-
-    <!-- White-space isn't allowed because a marquee could be 
-         inside 'white-space: pre' -->
-    <content>
-      <html:div style="overflow: hidden; width: -moz-available;"
-        ><html:div class="innerDiv"
-          ><children
-        /></html:div
-      ></html:div>
-    </content>
-
-  </binding>
-
-  <binding id="marquee-horizontal-editable" bindToUntrustedContent="true"
-           inheritstyle="false">
-
-    <!-- White-space isn't allowed because a marquee could be 
-         inside 'white-space: pre' -->
-    <content>
-      <html:div style="display: inline-block; overflow: auto; width: -moz-available;"
-        ><children
-      /></html:div>
-    </content>
-
-  </binding>
-
-  <binding id="marquee-vertical-editable" bindToUntrustedContent="true"
-           inheritstyle="false">
-
-    <!-- White-space isn't allowed because a marquee could be 
-         inside 'white-space: pre' -->
-    <content>
-      <html:div style="overflow: auto; height: inherit; width: -moz-available;"
-        ><children/></html:div>
-    </content>
-
-  </binding>
-
-</bindings>
diff --git a/parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/ElementName.java b/parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/ElementName.java
index ee0493318..65af61a91 100644
--- a/parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/ElementName.java
+++ b/parser/html/java/htmlparser/src/nu/validator/htmlparser/impl/ElementName.java
@@ -690,7 +690,6 @@ public final class ElementName
     public static final ElementName LISTING = new ElementName("listing", "listing", TreeBuilder.PRE_OR_LISTING | SPECIAL);
     public static final ElementName MFENCED = new ElementName("mfenced", "mfenced", TreeBuilder.OTHER);
     public static final ElementName MPADDED = new ElementName("mpadded", "mpadded", TreeBuilder.OTHER);
-    public static final ElementName MARQUEE = new ElementName("marquee", "marquee", TreeBuilder.MARQUEE_OR_APPLET | SPECIAL | SCOPING);
     public static final ElementName MACTION = new ElementName("maction", "maction", TreeBuilder.OTHER);
     public static final ElementName MSUBSUP = new ElementName("msubsup", "msubsup", TreeBuilder.OTHER);
     public static final ElementName NOEMBED = new ElementName("noembed", "noembed", TreeBuilder.NOEMBED | SPECIAL);
@@ -1089,7 +1088,6 @@ public final class ElementName
     LISTING,
     MFENCED,
     MPADDED,
-    MARQUEE,
     MACTION,
     MSUBSUP,
     NOEMBED,
diff --git a/parser/html/nsHtml5AtomList.h b/parser/html/nsHtml5AtomList.h
index ce9fcd682..26ceff4b1 100644
--- a/parser/html/nsHtml5AtomList.h
+++ b/parser/html/nsHtml5AtomList.h
@@ -940,7 +940,6 @@ HTML5_ATOM(logbase, "logbase")
 HTML5_ATOM(listing, "listing")
 HTML5_ATOM(mfenced, "mfenced")
 HTML5_ATOM(mpadded, "mpadded")
-HTML5_ATOM(marquee, "marquee")
 HTML5_ATOM(maction, "maction")
 HTML5_ATOM(msubsup, "msubsup")
 HTML5_ATOM(picture, "picture")
diff --git a/parser/html/nsHtml5ElementName.h b/parser/html/nsHtml5ElementName.h
index 99c6de323..db4427be9 100644
--- a/parser/html/nsHtml5ElementName.h
+++ b/parser/html/nsHtml5ElementName.h
@@ -358,7 +358,6 @@ class nsHtml5ElementName
     static nsHtml5ElementName* ELT_LISTING;
     static nsHtml5ElementName* ELT_MFENCED;
     static nsHtml5ElementName* ELT_MPADDED;
-    static nsHtml5ElementName* ELT_MARQUEE;
     static nsHtml5ElementName* ELT_MACTION;
     static nsHtml5ElementName* ELT_MSUBSUP;
     static nsHtml5ElementName* ELT_NOEMBED;
diff --git a/parser/htmlparser/nsHTMLTagList.h b/parser/htmlparser/nsHTMLTagList.h
index 7e1e207cc..62e1d2eb3 100644
--- a/parser/htmlparser/nsHTMLTagList.h
+++ b/parser/htmlparser/nsHTMLTagList.h
@@ -110,7 +110,6 @@ HTML_TAG(listing, Pre)
 HTML_HTMLELEMENT_TAG(main)
 HTML_TAG(map, Map)
 HTML_HTMLELEMENT_TAG(mark)
-HTML_TAG(marquee, Div)
 HTML_TAG(menu, Menu)
 HTML_TAG(menuitem, MenuItem)
 HTML_TAG(meta, Meta)
diff --git a/testing/mozbase/mozlog/mozlog/formatters/html/xmlgen.py b/testing/mozbase/mozlog/mozlog/formatters/html/xmlgen.py
index e545e9a7d..e5998cda3 100644
--- a/testing/mozbase/mozlog/mozlog/formatters/html/xmlgen.py
+++ b/testing/mozbase/mozlog/mozlog/formatters/html/xmlgen.py
@@ -106,7 +106,7 @@ class html(Namespace):
         'colgroup,comment,dd,del,dfn,dir,div,dl,dt,em,embed,'
         'fieldset,font,form,frameset,h1,h2,h3,h4,h5,h6,head,html,'
         'i,iframe,img,input,ins,kbd,label,legend,li,link,listing,'
-        'map,marquee,menu,meta,multicol,nobr,noembed,noframes,'
+        'map,menu,meta,multicol,nobr,noembed,noframes,'
         'noscript,object,ol,optgroup,option,p,pre,q,s,script,'
         'select,small,span,strike,strong,style,sub,sup,table,'
         'tbody,td,textarea,tfoot,th,thead,title,tr,tt,u,ul,xmp,'
diff --git a/testing/web-platform/tests/dom/nodes/Node-cloneNode.html b/testing/web-platform/tests/dom/nodes/Node-cloneNode.html
index 9fb939f7e..644a614fb 100644
--- a/testing/web-platform/tests/dom/nodes/Node-cloneNode.html
+++ b/testing/web-platform/tests/dom/nodes/Node-cloneNode.html
@@ -115,7 +115,6 @@ test(function() {
     create_element_and_check("main",      HTMLElement);
     create_element_and_check("map",       HTMLMapElement);
     create_element_and_check("mark",      HTMLElement);
-    create_element_and_check("marquee",   HTMLElement);
     create_element_and_check("meta",      HTMLMetaElement);
     create_element_and_check("meter",     HTMLMeterElement);
     create_element_and_check("nav",       HTMLElement);
diff --git a/testing/web-platform/tests/tools/html5lib/html5lib/constants.py b/testing/web-platform/tests/tools/html5lib/html5lib/constants.py
index e7089846d..a1f601b40 100644
--- a/testing/web-platform/tests/tools/html5lib/html5lib/constants.py
+++ b/testing/web-platform/tests/tools/html5lib/html5lib/constants.py
@@ -302,7 +302,6 @@ scopingElements = frozenset((
     (namespaces["html"], "applet"),
     (namespaces["html"], "caption"),
     (namespaces["html"], "html"),
-    (namespaces["html"], "marquee"),
     (namespaces["html"], "object"),
     (namespaces["html"], "table"),
     (namespaces["html"], "td"),
@@ -386,7 +385,6 @@ specialElements = frozenset((
     (namespaces["html"], "li"),
     (namespaces["html"], "link"),
     (namespaces["html"], "listing"),
-    (namespaces["html"], "marquee"),
     (namespaces["html"], "menu"),
     (namespaces["html"], "meta"),
     (namespaces["html"], "nav"),
diff --git a/testing/web-platform/tests/tools/html5lib/html5lib/html5parser.py b/testing/web-platform/tests/tools/html5lib/html5lib/html5parser.py
index 5b9ce7d72..048905ec3 100644
--- a/testing/web-platform/tests/tools/html5lib/html5lib/html5parser.py
+++ b/testing/web-platform/tests/tools/html5lib/html5lib/html5parser.py
@@ -898,7 +898,6 @@ def getPhases(debug):
                   "strong", "tt", "u"), self.startTagFormatting),
                 ("nobr", self.startTagNobr),
                 ("button", self.startTagButton),
-                (("applet", "marquee", "object"), self.startTagAppletMarqueeObject),
                 ("xmp", self.startTagXmp),
                 ("table", self.startTagTable),
                 (("area", "br", "embed", "img", "keygen", "wbr"),
@@ -935,7 +934,6 @@ def getPhases(debug):
                 (headingElements, self.endTagHeading),
                 (("a", "b", "big", "code", "em", "font", "i", "nobr", "s", "small",
                   "strike", "strong", "tt", "u"), self.endTagFormatting),
-                (("applet", "marquee", "object"), self.endTagAppletMarqueeObject),
                 ("br", self.endTagBr),
             ])
             self.endTagHandler.default = self.endTagOther
@@ -1133,12 +1131,6 @@ def getPhases(debug):
                 self.tree.insertElement(token)
                 self.parser.framesetOK = False
 
-        def startTagAppletMarqueeObject(self, token):
-            self.tree.reconstructActiveFormattingElements()
-            self.tree.insertElement(token)
-            self.tree.activeFormattingElements.append(Marker)
-            self.parser.framesetOK = False
-
         def startTagXmp(self, token):
             if self.tree.elementInScope("p", variant="button"):
                 self.endTagP(impliedTagToken("p"))
@@ -1558,17 +1550,6 @@ def getPhases(debug):
                 self.tree.openElements.insert(
                     self.tree.openElements.index(furthestBlock) + 1, clone)
 
-        def endTagAppletMarqueeObject(self, token):
-            if self.tree.elementInScope(token["name"]):
-                self.tree.generateImpliedEndTags()
-            if self.tree.openElements[-1].name != token["name"]:
-                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
-
-            if self.tree.elementInScope(token["name"]):
-                element = self.tree.openElements.pop()
-                while element.name != token["name"]:
-                    element = self.tree.openElements.pop()
-                self.tree.clearActiveFormattingElements()
 
         def endTagBr(self, token):
             self.parser.parseError("unexpected-end-tag-treated-as",
diff --git a/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests1.dat b/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests1.dat
index d6726e305..cc65fd2fa 100644
--- a/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests1.dat
+++ b/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests1.dat
@@ -284,27 +284,6 @@ Line1<br>Line2<br>Line3<br>Line4
 |         "foobar"
 
 #data
-<p><b><div><marquee></p></b></div>X
-#errors
-(1,3): expected-doctype-but-got-start-tag
-(1,11): unexpected-end-tag
-(1,24): unexpected-end-tag
-(1,28): unexpected-end-tag
-(1,34): end-tag-too-early
-(1,35): expected-closing-tag-but-got-eof
-#document
-| <html>
-|   <head>
-|   <body>
-|     <p>
-|       <b>
-|     <div>
-|       <b>
-|         <marquee>
-|           <p>
-|           "X"
-
-#data
 <script><div></script></div><title><p></title><p><p>
 #errors
 (1,8): expected-doctype-but-got-start-tag
@@ -1205,26 +1184,6 @@ Line1<br>Line2<br>Line3<br>Line4
 |       "aoe"
 
 #data
-<a href=a>aa<marquee>aa<a href=b>bb</marquee>aa
-#errors
-(1,10): expected-doctype-but-got-start-tag
-(1,45): end-tag-too-early
-(1,47): expected-closing-tag-but-got-eof
-#document
-| <html>
-|   <head>
-|   <body>
-|     <a>
-|       href="a"
-|       "aa"
-|       <marquee>
-|         "aa"
-|         <a>
-|           href="b"
-|           "bb"
-|       "aa"
-
-#data
 <wbr><strike><code></strike><code><strike></code>
 #errors
 (1,5): expected-doctype-but-got-start-tag
@@ -1485,26 +1444,6 @@ Line1<br>Line2<br>Line3<br>Line4
 |       <b>
 
 #data
-<p><b><div><marquee></p></b></div>
-#errors
-(1,3): expected-doctype-but-got-start-tag
-(1,11): unexpected-end-tag
-(1,24): unexpected-end-tag
-(1,28): unexpected-end-tag
-(1,34): end-tag-too-early
-(1,34): expected-closing-tag-but-got-eof
-#document
-| <html>
-|   <head>
-|   <body>
-|     <p>
-|       <b>
-|     <div>
-|       <b>
-|         <marquee>
-|           <p>
-
-#data
 <script></script></div><title></title><p><p>
 #errors
 (1,8): expected-doctype-but-got-start-tag
@@ -1730,225 +1669,6 @@ Line1<br>Line2<br>Line3<br>Line4
 |       <colgroup>
 
 #data
-</strong></b></em></i></u></strike></s></blink></tt></pre></big></small></font></select></h1></h2></h3></h4></h5></h6></body></br></a></img></title></span></style></script></table></th></td></tr></frame></area></link></param></hr></input></col></base></meta></basefont></bgsound></embed></spacer></p></dd></dt></caption></colgroup></tbody></tfoot></thead></address></blockquote></center></dir></div></dl></fieldset></listing></menu></ol></ul></li></nobr></wbr></form></button></marquee></object></html></frameset></head></iframe></image></isindex></noembed></noframes></noscript></optgroup></option></plaintext></textarea>
-#errors
-(1,9): expected-doctype-but-got-end-tag
-(1,9): unexpected-end-tag-before-html
-(1,13): unexpected-end-tag-before-html
-(1,18): unexpected-end-tag-before-html
-(1,22): unexpected-end-tag-before-html
-(1,26): unexpected-end-tag-before-html
-(1,35): unexpected-end-tag-before-html
-(1,39): unexpected-end-tag-before-html
-(1,47): unexpected-end-tag-before-html
-(1,52): unexpected-end-tag-before-html
-(1,58): unexpected-end-tag-before-html
-(1,64): unexpected-end-tag-before-html
-(1,72): unexpected-end-tag-before-html
-(1,79): unexpected-end-tag-before-html
-(1,88): unexpected-end-tag-before-html
-(1,93): unexpected-end-tag-before-html
-(1,98): unexpected-end-tag-before-html
-(1,103): unexpected-end-tag-before-html
-(1,108): unexpected-end-tag-before-html
-(1,113): unexpected-end-tag-before-html
-(1,118): unexpected-end-tag-before-html
-(1,130): unexpected-end-tag-after-body
-(1,130): unexpected-end-tag-treated-as
-(1,134): unexpected-end-tag
-(1,140): unexpected-end-tag
-(1,148): unexpected-end-tag
-(1,155): unexpected-end-tag
-(1,163): unexpected-end-tag
-(1,172): unexpected-end-tag
-(1,180): unexpected-end-tag
-(1,185): unexpected-end-tag
-(1,190): unexpected-end-tag
-(1,195): unexpected-end-tag
-(1,203): unexpected-end-tag
-(1,210): unexpected-end-tag
-(1,217): unexpected-end-tag
-(1,225): unexpected-end-tag
-(1,230): unexpected-end-tag
-(1,238): unexpected-end-tag
-(1,244): unexpected-end-tag
-(1,251): unexpected-end-tag
-(1,258): unexpected-end-tag
-(1,269): unexpected-end-tag
-(1,279): unexpected-end-tag
-(1,287): unexpected-end-tag
-(1,296): unexpected-end-tag
-(1,300): unexpected-end-tag
-(1,305): unexpected-end-tag
-(1,310): unexpected-end-tag
-(1,320): unexpected-end-tag
-(1,331): unexpected-end-tag
-(1,339): unexpected-end-tag
-(1,347): unexpected-end-tag
-(1,355): unexpected-end-tag
-(1,365): end-tag-too-early
-(1,378): end-tag-too-early
-(1,387): end-tag-too-early
-(1,393): end-tag-too-early
-(1,399): end-tag-too-early
-(1,404): end-tag-too-early
-(1,415): end-tag-too-early
-(1,425): end-tag-too-early
-(1,432): end-tag-too-early
-(1,437): end-tag-too-early
-(1,442): end-tag-too-early
-(1,447): unexpected-end-tag
-(1,454): unexpected-end-tag
-(1,460): unexpected-end-tag
-(1,467): unexpected-end-tag
-(1,476): end-tag-too-early
-(1,486): end-tag-too-early
-(1,495): end-tag-too-early
-(1,513): expected-eof-but-got-end-tag
-(1,513): unexpected-end-tag
-(1,520): unexpected-end-tag
-(1,529): unexpected-end-tag
-(1,537): unexpected-end-tag
-(1,547): unexpected-end-tag
-(1,557): unexpected-end-tag
-(1,568): unexpected-end-tag
-(1,579): unexpected-end-tag
-(1,590): unexpected-end-tag
-(1,599): unexpected-end-tag
-(1,611): unexpected-end-tag
-(1,622): unexpected-end-tag
-#document
-| <html>
-|   <head>
-|   <body>
-|     <br>
-|     <p>
-
-#data
-<table><tr></strong></b></em></i></u></strike></s></blink></tt></pre></big></small></font></select></h1></h2></h3></h4></h5></h6></body></br></a></img></title></span></style></script></table></th></td></tr></frame></area></link></param></hr></input></col></base></meta></basefont></bgsound></embed></spacer></p></dd></dt></caption></colgroup></tbody></tfoot></thead></address></blockquote></center></dir></div></dl></fieldset></listing></menu></ol></ul></li></nobr></wbr></form></button></marquee></object></html></frameset></head></iframe></image></isindex></noembed></noframes></noscript></optgroup></option></plaintext></textarea>
-#errors
-(1,7): expected-doctype-but-got-start-tag
-(1,20): unexpected-end-tag-implies-table-voodoo
-(1,20): unexpected-end-tag
-(1,24): unexpected-end-tag-implies-table-voodoo
-(1,24): unexpected-end-tag
-(1,29): unexpected-end-tag-implies-table-voodoo
-(1,29): unexpected-end-tag
-(1,33): unexpected-end-tag-implies-table-voodoo
-(1,33): unexpected-end-tag
-(1,37): unexpected-end-tag-implies-table-voodoo
-(1,37): unexpected-end-tag
-(1,46): unexpected-end-tag-implies-table-voodoo
-(1,46): unexpected-end-tag
-(1,50): unexpected-end-tag-implies-table-voodoo
-(1,50): unexpected-end-tag
-(1,58): unexpected-end-tag-implies-table-voodoo
-(1,58): unexpected-end-tag
-(1,63): unexpected-end-tag-implies-table-voodoo
-(1,63): unexpected-end-tag
-(1,69): unexpected-end-tag-implies-table-voodoo
-(1,69): end-tag-too-early
-(1,75): unexpected-end-tag-implies-table-voodoo
-(1,75): unexpected-end-tag
-(1,83): unexpected-end-tag-implies-table-voodoo
-(1,83): unexpected-end-tag
-(1,90): unexpected-end-tag-implies-table-voodoo
-(1,90): unexpected-end-tag
-(1,99): unexpected-end-tag-implies-table-voodoo
-(1,99): unexpected-end-tag
-(1,104): unexpected-end-tag-implies-table-voodoo
-(1,104): end-tag-too-early
-(1,109): unexpected-end-tag-implies-table-voodoo
-(1,109): end-tag-too-early
-(1,114): unexpected-end-tag-implies-table-voodoo
-(1,114): end-tag-too-early
-(1,119): unexpected-end-tag-implies-table-voodoo
-(1,119): end-tag-too-early
-(1,124): unexpected-end-tag-implies-table-voodoo
-(1,124): end-tag-too-early
-(1,129): unexpected-end-tag-implies-table-voodoo
-(1,129): end-tag-too-early
-(1,136): unexpected-end-tag-in-table-row
-(1,141): unexpected-end-tag-implies-table-voodoo
-(1,141): unexpected-end-tag-treated-as
-(1,145): unexpected-end-tag-implies-table-voodoo
-(1,145): unexpected-end-tag
-(1,151): unexpected-end-tag-implies-table-voodoo
-(1,151): unexpected-end-tag
-(1,159): unexpected-end-tag-implies-table-voodoo
-(1,159): unexpected-end-tag
-(1,166): unexpected-end-tag-implies-table-voodoo
-(1,166): unexpected-end-tag
-(1,174): unexpected-end-tag-implies-table-voodoo
-(1,174): unexpected-end-tag
-(1,183): unexpected-end-tag-implies-table-voodoo
-(1,183): unexpected-end-tag
-(1,196): unexpected-end-tag
-(1,201): unexpected-end-tag
-(1,206): unexpected-end-tag
-(1,214): unexpected-end-tag
-(1,221): unexpected-end-tag
-(1,228): unexpected-end-tag
-(1,236): unexpected-end-tag
-(1,241): unexpected-end-tag
-(1,249): unexpected-end-tag
-(1,255): unexpected-end-tag
-(1,262): unexpected-end-tag
-(1,269): unexpected-end-tag
-(1,280): unexpected-end-tag
-(1,290): unexpected-end-tag
-(1,298): unexpected-end-tag
-(1,307): unexpected-end-tag
-(1,311): unexpected-end-tag
-(1,316): unexpected-end-tag
-(1,321): unexpected-end-tag
-(1,331): unexpected-end-tag
-(1,342): unexpected-end-tag
-(1,350): unexpected-end-tag
-(1,358): unexpected-end-tag
-(1,366): unexpected-end-tag
-(1,376): end-tag-too-early
-(1,389): end-tag-too-early
-(1,398): end-tag-too-early
-(1,404): end-tag-too-early
-(1,410): end-tag-too-early
-(1,415): end-tag-too-early
-(1,426): end-tag-too-early
-(1,436): end-tag-too-early
-(1,443): end-tag-too-early
-(1,448): end-tag-too-early
-(1,453): end-tag-too-early
-(1,458): unexpected-end-tag
-(1,465): unexpected-end-tag
-(1,471): unexpected-end-tag
-(1,478): unexpected-end-tag
-(1,487): end-tag-too-early
-(1,497): end-tag-too-early
-(1,506): end-tag-too-early
-(1,524): expected-eof-but-got-end-tag
-(1,524): unexpected-end-tag
-(1,531): unexpected-end-tag
-(1,540): unexpected-end-tag
-(1,548): unexpected-end-tag
-(1,558): unexpected-end-tag
-(1,568): unexpected-end-tag
-(1,579): unexpected-end-tag
-(1,590): unexpected-end-tag
-(1,601): unexpected-end-tag
-(1,610): unexpected-end-tag
-(1,622): unexpected-end-tag
-(1,633): unexpected-end-tag
-#document
-| <html>
-|   <head>
-|   <body>
-|     <br>
-|     <table>
-|       <tbody>
-|         <tr>
-|     <p>
-
-#data
 <frameset>
 #errors
 (1,10): expected-doctype-but-got-start-tag
diff --git a/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests19.dat b/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests19.dat
index 02158c8bb..00cc79243 100644
--- a/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests19.dat
+++ b/testing/web-platform/tests/tools/html5lib/html5lib/tests/testdata/tree-construction/tests19.dat
@@ -782,18 +782,6 @@
 |     <applet>
 
 #data
-<!doctype html><marquee><frameset>
-#errors
-(1,34): unexpected-start-tag
-(1,34): expected-closing-tag-but-got-eof
-#document
-| <!DOCTYPE html>
-| <html>
-|   <head>
-|   <body>
-|     <marquee>
-
-#data
 <!doctype html><object><frameset>
 #errors
 (1,33): unexpected-start-tag
diff --git a/testing/web-platform/tests/tools/html5lib/html5lib/treebuilders/_base.py b/testing/web-platform/tests/tools/html5lib/html5lib/treebuilders/_base.py
index 8b97cc11a..13c73bf22 100644
--- a/testing/web-platform/tests/tools/html5lib/html5lib/treebuilders/_base.py
+++ b/testing/web-platform/tests/tools/html5lib/html5lib/treebuilders/_base.py
@@ -4,8 +4,8 @@ from six import text_type
 from ..constants import scopingElements, tableInsertModeElements, namespaces
 
 # The scope markers are inserted when entering object elements,
-# marquees, table cells, and table captions, and are used to prevent formatting
-# from "leaking" into tables, object elements, and marquees.
+# table cells, and table captions, and are used to prevent formatting
+# from "leaking" into tables, and object elements.
 Marker = None
 
 listElementsMap = {
diff --git a/testing/web-platform/tests/tools/py/py/_xmlgen.py b/testing/web-platform/tests/tools/py/py/_xmlgen.py
index 2ffcaa14b..741e2029e 100644
--- a/testing/web-platform/tests/tools/py/py/_xmlgen.py
+++ b/testing/web-platform/tests/tools/py/py/_xmlgen.py
@@ -79,7 +79,7 @@ class html(Namespace):
         'colgroup,comment,dd,del,dfn,dir,div,dl,dt,em,embed,'
         'fieldset,font,form,frameset,h1,h2,h3,h4,h5,h6,head,html,'
         'i,iframe,img,input,ins,kbd,label,legend,li,link,listing,'
-        'map,marquee,menu,meta,multicol,nobr,noembed,noframes,'
+        'map,menu,meta,multicol,nobr,noembed,noframes,'
         'noscript,object,ol,optgroup,option,p,pre,q,s,script,'
         'select,small,span,strike,strong,style,sub,sup,table,'
         'tbody,td,textarea,tfoot,th,thead,title,tr,tt,u,ul,xmp,'