Remove references to DB thread from unit test.

chrome/browser/engagement/important_sites_usage_counter_unittest.cc

 // Copyright 2017 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/engagement/important_sites_usage_counter.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
 #include "base/test/histogram_tester.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/storage_partition.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "storage/browser/quota/quota_manager_proxy.h"
 #include "storage/browser/test/mock_storage_client.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ImportantDomainInfo = ImportantSitesUtil::ImportantDomainInfo;
 using content::BrowserThread;
 using content::DOMStorageContext;
 using storage::QuotaManager;
 
 class ImportantSitesUsageCounterTest : public testing::Test {
  public:
   void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     run_loop_.reset(new base::RunLoop());
   }
 
   void TearDown() override { base::RunLoop().RunUntilIdle(); }
 
   TestingProfile* profile() { return &profile_; }
 
   QuotaManager* CreateQuotaManager() {
-    quota_manager_ = new QuotaManager(
-        false, temp_dir_.GetPath(),
-        BrowserThread::GetTaskRunnerForThread(BrowserThread::IO).get(),
-        BrowserThread::GetTaskRunnerForThread(BrowserThread::DB).get(), nullptr,
-        storage::GetQuotaSettingsFunc());
+    quota_manager_ = new QuotaManager(false, temp_dir_.GetPath(),
+                                      base::ThreadTaskRunnerHandle::Get(),
+                                      base::ThreadTaskRunnerHandle::Get(),
+                                      nullptr, storage::GetQuotaSettingsFunc());
     return quota_manager_.get();
   }
 
   void RegisterClient(const std::vector<content::MockOriginData>& data) {
     auto* client = new content::MockStorageClient(
         quota_manager_->proxy(), data.data(), storage::QuotaClient::kFileSystem,
         data.size());
     quota_manager_->proxy()->RegisterClient(client);
     client->TouchAllOriginsAndNotify();
   }
@@ skipping 22 matching lines @@
   }
 
   void WaitForResult() {
     run_loop_->Run();
     run_loop_.reset(new base::RunLoop());
   }
 
   const std::vector<ImportantDomainInfo>& domain_info() { return domain_info_; }
 
  private:
-  content::TestBrowserThreadBundle thread_bundle_;
+  content::TestBrowserThreadBundle thread_bundle;

[fdoray, 2017/06/27 13:28:56]

Do not remove the trailing underscore.

   TestingProfile profile_;
   base::ScopedTempDir temp_dir_;
   scoped_refptr<QuotaManager> quota_manager_;
   std::vector<ImportantDomainInfo> domain_info_;
   std::unique_ptr<base::RunLoop> run_loop_;
 };
 
 TEST_F(ImportantSitesUsageCounterTest, PopulateUsage) {
   std::vector<ImportantDomainInfo> important_sites;
   ImportantDomainInfo i1;
@@ skipping 32 matching lines @@
   // The first important site is example.com. It uses 1B quota storage for
   // http://example.com/, 2B for https://example.com and 4B for
   // https://maps.example.com. On top of that it uses 16B local storage.
   EXPECT_EQ("example.com", domain_info()[0].registerable_domain);
   EXPECT_EQ(1 + 2 + 4 + 16, domain_info()[0].usage);
   // The second important site is somethingelse.com but it doesn't use any
   // quota. We still expect it to be returned and not dropped.
   EXPECT_EQ("somethingelse.com", domain_info()[1].registerable_domain);
   EXPECT_EQ(0, domain_info()[1].usage);
 }