Restored tabs should set their initial visibility

chrome/test/data/tab-restore-visibilty.html

Index: chrome/test/data/tab-restore-visibilty.html
diff --git a/chrome/test/data/tab-restore-visibilty.html b/chrome/test/data/tab-restore-visibilty.html
new file mode 100644
index 0000000000000000000000000000000000000000..fda2344fcedfba8a1d4d96d40bc6fa791f592f34
--- /dev/null
+++ b/chrome/test/data/tab-restore-visibilty.html
@@ -0,0 +1,19 @@
+<script>
+var count = 0;
+
+function setTitle() {
+  // document.title reports the DOM page visibility and RAF count.
+  document.title = document.visibilityState + ' ' + count++;
+
+  if (window.ready == undefined)
+    setTimeout(function() { ready = true }, count > 10 ? 0 : 100);
+}
+
+document.addEventListener('visibilitychange', setTitle);
+
+(function changeTitle() {
+  window.requestAnimationFrame(changeTitle);
+  setTitle();
+})();
+
+</script>