#include "chrome/browser/preloading/prefetch/prefetch_service/chrome_prefetch_service_delegate.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/search_engines/template_url_service_factory_test_util.h"
#include "chrome/test/base/testing_profile.h"
#include "components/search_engines/template_url_service.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
class ChromePrefetchServiceDelegateTest : public ::testing::Test { … };
TEST_F(ChromePrefetchServiceDelegateTest,
DefaultSearchEngineIsContaminationExempt) { … }