[MD History] Make side bar always visible.

chrome/test/data/webui/md_history/history_synced_tabs_test.js

Index: chrome/test/data/webui/md_history/history_synced_tabs_test.js
diff --git a/chrome/test/data/webui/md_history/history_synced_tabs_test.js b/chrome/test/data/webui/md_history/history_synced_tabs_test.js
index 3eec5dc67abf72853db84f7e7f4ea40cb4173ee1..e6486a1d98ef293cba285c9eb85cc2b86b86df68 100644
--- a/chrome/test/data/webui/md_history/history_synced_tabs_test.js
+++ b/chrome/test/data/webui/md_history/history_synced_tabs_test.js
@@ -38,19 +38,6 @@ cr.define('md_history.history_synced_tabs_test', function() {
         sidebarElement = app.$['history-side-bar'];
       });
 
-      test('sidebar displayed', function(done) {
-        setForeignSessions([], true);
-        flush(function() {
-          assertFalse(sidebarElement.hidden);
-          setForeignSessions([], false);
-          flush(function() {
-            assertTrue(sidebarElement.hidden);
-            done();
-          });
-        });
-
-      });
-
       test('single card, single window', function(done) {
         var sessionList = [
           createSession(