Enable position:sticky for <thead> and <tr> elements

third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html

Index: third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html
diff --git a/third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html b/third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html
index fae12b365cb51fa1edcb843734264f878fc43cf9..ba17df6c77079824a256f7be77b7b078b8b6e099 100644
--- a/third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html
+++ b/third_party/WebKit/LayoutTests/fast/css/sticky/nested/sticky-nested-table-expected.html
@@ -4,47 +4,194 @@ body {
 }
 
 table {
-  background: red;
   border-collapse: collapse;
 }
 
 td, th {
-  height: 50px;
-  width: 50px;
-  padding: 0;
+  height: 40px;
+  width: 40px;
 }
 
 th {
-  position: absolute;
-  top: 25px;
+  position: relative;
+  top: 225px;
   background: green;
 }
 
-.container {
-  overflow: hidden;
-  width: 100px;
-  height: 200px;
-  outline: 2px solid black;
+.scroller {
+  overflow: auto;
+  height: 400px;
+}
+
+.group {
+  display: inline-block;
+  padding-right: 2em;
+}
+
+.padding {
+  height: 500px;
 }
 </style>
 
-<div class="container">
-  <table>
-    <thead class="sticky">
-      <tr class="sticky">
-        <th class="sticky"></th>
-      </tr>
-    </thead>
-    <tbody>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-      <tr><td></td></tr>
-    </tbody>
-  </table>
+<script>
+if (window.testRunner)
+  testRunner.waitUntilDone();
+
+function finishTest() {
+  document.querySelector('.scroller').scrollTop = 200;
+  if (window.testRunner)
+    testRunner.notifyDone();
+}
+
+window.addEventListener('load', function() {
+  requestAnimationFrame(function() {
+    requestAnimationFrame(finishTest);
+  });
+});
+</script>
+
+<div class="scroller">
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="group">
+    <table>
+      <thead>
+        <tr>
+          <th></th>
+        </tr>
+      </thead>
+      <tbody>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+        <tr><td></td></tr>
+      </tbody>
+    </table>
+  </div>
+
+  <div class="padding"></div>
+
 </div>