Revert of Disable flaky ContinueWhereILeftOffTest.SessionStorage/SessionCookies tests

chrome/browser/sessions/better_session_restore_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 390 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContinueWhereILeftOffTest);
 };
 
 IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, PRE_SessionCookies) {
   // Set the startup preference to "continue where I left off" and visit a page
   // which stores a session cookie.
   StoreDataWithPage("session_cookies.html");
 }
 
-// Flaky(crbug.com/700696)
-IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, DISABLED_SessionCookies) {
+IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, SessionCookies) {
   // The browsing session will be continued; just wait for the page to reload
   // and check the stored data.
   CheckReloadedPageRestored();
 }
 
 IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, PRE_SessionStorage) {
   StoreDataWithPage("session_storage.html");
 }
 
-// Flaky(crbug.com/700699)
-IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, DISABLED_SessionStorage) {
+IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest, SessionStorage) {
   CheckReloadedPageRestored();
 }
 
 IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest,
                        PRE_PRE_LocalStorageClearedOnExit) {
   StoreDataWithPage("local_storage.html");
 }
 
 IN_PROC_BROWSER_TEST_F(ContinueWhereILeftOffTest,
                        PRE_LocalStorageClearedOnExit) {
@@ skipping 462 matching lines @@
   CookieSettingsFactory::GetForProfile(new_browser->profile())
       ->SetDefaultCookieSetting(CONTENT_SETTING_SESSION_ONLY);
   // ... even if background mode is active.
   EnableBackgroundMode();
   new_browser = QuitBrowserAndRestore(new_browser, true);
   StoreDataWithPage(new_browser, "cookies.html");
   DisableBackgroundMode();
   new_browser = QuitBrowserAndRestore(new_browser, true);
   StoreDataWithPage(new_browser, "cookies.html");
 }