Add policy that forces SAML users to log in online periodically

chrome/browser/policy/policy_prefs_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 <algorithm>
 #include <cstdlib>
 #include <map>
 #include <sstream>
 #include <string>
 #include <vector>
@@ skipping 442 matching lines @@
     EXPECT_CALL(provider_, IsInitializationComplete(_))
         .WillRepeatedly(Return(true));
     BrowserPolicyConnector::SetPolicyProviderForTesting(&provider_);
   }
 
   virtual void SetUpOnMainThread() OVERRIDE {
     ui_test_utils::WaitForTemplateURLServiceToLoad(
         TemplateURLServiceFactory::GetForProfile(browser()->profile()));
   }
 
+  virtual void TearDownOnMainThread() OVERRIDE {
+    ClearProviderPolicy();
+  }
+
   void ClearProviderPolicy() {
     provider_.UpdateChromePolicy(PolicyMap());
     base::RunLoop().RunUntilIdle();
   }
 
   void SetProviderPolicy(const base::DictionaryValue& policies,
                          PolicyLevel level) {
     PolicyMap policy_map;
     for (base::DictionaryValue::Iterator it(policies);
          !it.IsAtEnd(); it.Advance()) {
@@ skipping 191 matching lines @@
       }
     }
   }
 }
 
 INSTANTIATE_TEST_CASE_P(PolicyPrefIndicatorTestInstance,
                         PolicyPrefIndicatorTest,
                         testing::ValuesIn(SplitPoliciesIntoChunks(50)));
 
 }  // namespace policy