Fix infinite refresh of device policy when the TPM gets out of sync with the stateful partition.

chrome/browser/policy/device_policy_cache_unittest.cc

Index: chrome/browser/policy/device_policy_cache_unittest.cc
diff --git a/chrome/browser/policy/device_policy_cache_unittest.cc b/chrome/browser/policy/device_policy_cache_unittest.cc
index b438cdad3cc8dc4e0e222f8313b67b47968fbdda..3a62009fea40d97f236d997fb6039cf896420645 100644
--- a/chrome/browser/policy/device_policy_cache_unittest.cc
+++ b/chrome/browser/policy/device_policy_cache_unittest.cc
@@ -153,7 +153,7 @@ TEST_F(DevicePolicyCacheTest, SetPolicy) {
   EXPECT_CALL(signed_settings_helper_, StartRetrievePolicyOp(_)).WillOnce(
       MockSignedSettingsHelperRetrievePolicy(SignedSettings::SUCCESS,
                                              new_policy));
-  cache_->SetPolicy(new_policy);
+  EXPECT_TRUE(cache_->SetPolicy(new_policy));
   testing::Mock::VerifyAndClearExpectations(&signed_settings_helper_);
   base::FundamentalValue updated_expected(300);
   EXPECT_TRUE(Value::Equals(&updated_expected,
@@ -178,7 +178,7 @@ TEST_F(DevicePolicyCacheTest, SetPolicyWrongUser) {
   em::PolicyFetchResponse new_policy;
   CreateRefreshRatePolicy(&new_policy, "foreign_user@example.com", 300);
   EXPECT_CALL(signed_settings_helper_, StartStorePolicyOp(_, _)).Times(0);
-  cache_->SetPolicy(new_policy);
+  EXPECT_FALSE(cache_->SetPolicy(new_policy));
   testing::Mock::VerifyAndClearExpectations(&signed_settings_helper_);
 
   base::FundamentalValue expected(120);
@@ -202,7 +202,7 @@ TEST_F(DevicePolicyCacheTest, SetPolicyNonEnterpriseDevice) {
   em::PolicyFetchResponse new_policy;
   CreateRefreshRatePolicy(&new_policy, kTestUser, 120);
   EXPECT_CALL(signed_settings_helper_, StartStorePolicyOp(_, _)).Times(0);
-  cache_->SetPolicy(new_policy);
+  EXPECT_FALSE(cache_->SetPolicy(new_policy));
   testing::Mock::VerifyAndClearExpectations(&signed_settings_helper_);
 
   base::FundamentalValue expected(120);