Add relaunch prompt to linux help page.

chrome/browser/ui/webui/help/help_browsertest.js

Index: chrome/browser/ui/webui/help/help_browsertest.js
diff --git a/chrome/browser/ui/webui/help/help_browsertest.js b/chrome/browser/ui/webui/help/help_browsertest.js
index 77d4481d07292aa8a226585e65a4e1a9792d198f..e99ea04ff433bde491fb9a8d2239aa7f94261238 100644
--- a/chrome/browser/ui/webui/help/help_browsertest.js
+++ b/chrome/browser/ui/webui/help/help_browsertest.js
@@ -19,3 +19,24 @@ HelpPageWebUITest.prototype = {
 TEST_F('HelpPageWebUITest', 'testOpenHelpPage', function() {
   assertEquals(this.browsePreload, document.location.href);
 });
+
+GEN('#if defined(OS_LINUX) || defined(GOOGLE_CHROME_BUILD)');
+
+// Test that repeated calls to setUpdateStatus work.
+TEST_F('HelpPageWebUITest', 'testUpdateState', function() {
+  expectTrue($('update-status-container').hidden);
+
+  help.HelpPage.setUpdateStatus('disabled', '');
+  expectTrue($('relaunch').hidden);
+  expectTrue($('update-status-container').hidden);
+
+  help.HelpPage.setUpdateStatus('nearly_updated', '');
+  expectTrue(!$('relaunch').hidden);
+  expectTrue(!$('update-status-container').hidden);
+
+  help.HelpPage.setUpdateStatus('disabled', '');
+  expectTrue($('relaunch').hidden);
+  expectTrue($('update-status-container').hidden);
+});
+
+GEN('#endif');