Replace MessageLoop::current()->task_runner() with ThreadTaskRunnerHandle::Get().

components/previews/core/previews_black_list_unittest.cc

 // Copyright 2016 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/previews/core/previews_black_list.h"
 
 #include <memory>
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/test/simple_test_clock.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "components/previews/core/previews_black_list_item.h"
 #include "components/previews/core/previews_experiments.h"
 #include "components/previews/core/previews_opt_out_store.h"
 #include "components/variations/variations_associated_data.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 namespace {
 
@@ skipping 18 matching lines @@
  private:
   // PreviewsOptOutStore implementation:
   void AddPreviewNavigation(bool opt_out,
                             const std::string& host_name,
                             PreviewsType type,
                             base::Time now) override {}
 
   void LoadBlackList(LoadBlackListCallback callback) override {
     std::unique_ptr<BlackListItemMap> black_list_item_map(
         new BlackListItemMap());
-    base::MessageLoop::current()->task_runner()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(&RunLoadCallback, callback,
                               base::Passed(&black_list_item_map)));
   }
 };
 
 }  // namespace
 
 TEST_F(PreviewsBlackListTest, BlackListNoStore) {
   // Tests the black list behavior when a null OptOutSture is passed in.
   const GURL url_a("http://www.url_a.com");
@@ skipping 186 matching lines @@
   black_list->AddPreviewNavigation(url_e, true, PreviewsType::OFFLINE);
   // url_d and url_e should remain in the map, but url_a should be evicted.
   EXPECT_TRUE(black_list->IsLoadedAndAllowed(url_a, PreviewsType::OFFLINE));
   EXPECT_FALSE(black_list->IsLoadedAndAllowed(url_d, PreviewsType::OFFLINE));
   EXPECT_FALSE(black_list->IsLoadedAndAllowed(url_e, PreviewsType::OFFLINE));
 
   variations::testing::ClearAllVariationParams();
 }
 
 }  // namespace previews