Ensure tests have an active task runner

chrome/browser/chromeos/login/saml/saml_offline_signin_limiter_unittest.cc

 // Copyright 2014 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 "chrome/browser/chromeos/login/saml/saml_offline_signin_limiter.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/prefs/pref_service.h"
 #include "base/test/simple_test_clock.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/clock.h"
 #include "chrome/browser/chromeos/login/saml/saml_offline_signin_limiter_factory.h"
 #include "chrome/browser/chromeos/login/users/mock_user_manager.h"
 #include "chrome/browser/chromeos/login/users/scoped_user_manager_enabler.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::Mock;
 using testing::ReturnRef;
 using testing::Sequence;
+using testing::_;
 
 namespace chromeos {
 
 namespace {
 const char kTestUser[] = "user@example.com";
 }
 
 class SAMLOfflineSigninLimiterTest : public testing::Test {
  protected:
   SAMLOfflineSigninLimiterTest();
@@ skipping 25 matching lines @@
       runner_handle_(runner_),
       user_manager_(new MockUserManager),
       user_manager_enabler_(user_manager_),
       limiter_(NULL) {
 }
 
 SAMLOfflineSigninLimiterTest::~SAMLOfflineSigninLimiterTest() {
   DestroyLimiter();
   Mock::VerifyAndClearExpectations(user_manager_);
   EXPECT_CALL(*user_manager_, Shutdown()).Times(1);
+  EXPECT_CALL(*user_manager_, RemoveSessionStateObserver(_)).Times(1);
+  profile_.reset();
+  TestingBrowserProcess::DeleteInstance();
 }
 
 void SAMLOfflineSigninLimiterTest::DestroyLimiter() {
   if (limiter_) {
     limiter_->Shutdown();
     delete limiter_;
     limiter_ = NULL;
   }
 }
 
@@ skipping 487 matching lines @@
   EXPECT_CALL(*user_manager_, SaveForceOnlineSignin(kTestUser, false)).Times(0);
   EXPECT_CALL(*user_manager_, SaveForceOnlineSignin(kTestUser, true)).Times(1);
   limiter_->SignedIn(UserContext::AUTH_FLOW_OFFLINE);
 
   const base::Time last_gaia_signin_time = base::Time::FromInternalValue(
       prefs->GetInt64(prefs::kSAMLLastGAIASignInTime));
   EXPECT_EQ(gaia_signin_time, last_gaia_signin_time);
 }
 
 } //  namespace chromeos