Ensure tests have an active task runner

chrome/browser/ui/autofill/account_chooser_model_unittest.cc

 // Copyright 2013 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 "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/autofill/account_chooser_model.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/autofill/core/browser/autofill_metrics.h"
+#include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::ASCIIToUTF16;
 
 namespace autofill {
 
 namespace {
 
 class TestAccountChooserModel : public AccountChooserModel {
@@ skipping 25 matching lines @@
 class AccountChooserModelTest : public testing::Test {
  public:
   AccountChooserModelTest() : model_(&delegate_, &profile_, false) {}
   virtual ~AccountChooserModelTest() {}
 
   TestingProfile* profile() { return &profile_; }
   MockAccountChooserModelDelegate* delegate() { return &delegate_; }
   TestAccountChooserModel* model() { return &model_; }
 
  private:
+  content::TestBrowserThreadBundle thread_bundle_;
   TestingProfile profile_;
   testing::NiceMock<MockAccountChooserModelDelegate> delegate_;
   TestAccountChooserModel model_;
 };
 
 }  // namespace
 
 TEST_F(AccountChooserModelTest, ObeysPref) {
   // When "Pay without wallet" is false, use Wallet by default.
   {
@@ skipping 136 matching lines @@
   EXPECT_EQ(ASCIIToUTF16(accounts[1]), model()->GetActiveWalletAccountName());
 
   // Setting the wallet accounts forces the switch to wallet.
   model()->ExecuteCommand(TestAccountChooserModel::kAutofillItemId, 0);
   EXPECT_FALSE(model()->WalletIsSelected());
   model()->SetWalletAccounts(accounts, 1U);
   EXPECT_TRUE(model()->WalletIsSelected());
 }
 
 }  // namespace autofill