GTTF: Use a fresh TestingBrowserProcess for each test, part #4

chrome/browser/instant/promo_counter_unittest.cc

 // Copyright (c) 2010 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/instant/promo_counter.h"
 #include "chrome/test/base/testing_profile.h"
+#include "chrome/test/testing_browser_process_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-typedef testing::Test PromoCounterTest;
+typedef TestingBrowserProcessTest PromoCounterTest;
 
 // Makes sure ShouldShow returns false after the max number of days.
 TEST_F(PromoCounterTest, MaxTimeElapsed) {
   TestingProfile profile;
   PromoCounter::RegisterUserPrefs(profile.GetPrefs(), "test");
 
   base::Time test_time(base::Time::Now());
   PromoCounter counter(&profile, "test", "test", 2, 2);
   ASSERT_TRUE(counter.ShouldShow(test_time));
   ASSERT_TRUE(counter.ShouldShow(test_time + base::TimeDelta::FromHours(2)));
@@ skipping 52 matching lines @@
     ASSERT_TRUE(counter.ShouldShow(test_time));
     counter.Hide();
     ASSERT_FALSE(counter.ShouldShow(test_time));
   }
 
   {
     PromoCounter counter(&profile, "test", "test", 2, 2);
     ASSERT_FALSE(counter.ShouldShow(test_time));
   }
 }