[UserClassifier] Inject a clock

components/ntp_snippets/remote/remote_suggestions_provider_impl_unittest.cc

 // Copyright 2015 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 "components/ntp_snippets/remote/remote_suggestions_provider_impl.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/histogram_tester.h"
 #include "base/test/simple_test_clock.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "base/time/default_clock.h"
 #include "base/time/time.h"
 #include "components/image_fetcher/image_decoder.h"
 #include "components/image_fetcher/image_fetcher.h"
 #include "components/image_fetcher/image_fetcher_delegate.h"
 #include "components/image_fetcher/request_metadata.h"
 #include "components/ntp_snippets/category.h"
 #include "components/ntp_snippets/category_info.h"
 #include "components/ntp_snippets/category_rankers/category_ranker.h"
 #include "components/ntp_snippets/category_rankers/constant_category_ranker.h"
 #include "components/ntp_snippets/category_rankers/mock_category_ranker.h"
@@ skipping 359 matching lines @@
  public:
   RemoteSuggestionsProviderImplTest()
       : params_manager_(ntp_snippets::kStudyName,
                         {{"content_suggestions_backend",
                           kTestContentSuggestionsServerEndpoint}},
                         {ntp_snippets::kArticleSuggestionsFeature.name}),
         fake_url_fetcher_factory_(
             /*default_factory=*/&failing_url_fetcher_factory_),
         test_url_(kTestContentSuggestionsServerWithAPIKey),
         category_ranker_(base::MakeUnique<ConstantCategoryRanker>()),
-        user_classifier_(/*pref_service=*/nullptr),
+        user_classifier_(/*pref_service=*/nullptr,
+                         base::MakeUnique<base::DefaultClock>()),
         suggestions_fetcher_(nullptr),
         image_fetcher_(nullptr),
         database_(nullptr) {
     RemoteSuggestionsProviderImpl::RegisterProfilePrefs(
         utils_.pref_service()->registry());
     RequestThrottler::RegisterProfilePrefs(utils_.pref_service()->registry());
 
     EXPECT_TRUE(database_dir_.CreateUniqueTempDir());
   }
 
@@ skipping 1396 matching lines @@
   EXPECT_CALL(scheduler, OnProviderActivated());
   // The scheduler should be notified of clearing the history.
   EXPECT_CALL(scheduler, OnSuggestionsCleared());
 
   service->SetRemoteSuggestionsScheduler(&scheduler);
   service->OnStatusChanged(RemoteSuggestionsStatus::ENABLED_AND_SIGNED_OUT,
                            RemoteSuggestionsStatus::ENABLED_AND_SIGNED_IN);
 }
 
 }  // namespace ntp_snippets