Remove MessageLoop::current()->RunUntilIdle() in components.

components/history/core/browser/history_backend_db_unittest.cc

 // Copyright (c) 2012 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.
 
 // History unit tests come in two flavors:
 //
 // 1. The more complicated style is that the unit test creates a full history
 //    service. This spawns a background thread for the history backend, and
 //    all communication is asynchronous. This is useful for testing more
 //    complicated things or end-to-end behavior.
 //
 // 2. The simpler style is to create a history backend on this thread and
 //    access it directly without a HistoryService object. This is much simpler
 //    because communication is synchronous. Generally, sets should go through
 //    the history backend (since there is a lot of logic) but gets can come
 //    directly from the HistoryDatabase. This is because the backend generally
 //    has no logic in the getter except threading stuff, which we don't want
 //    to run.
 
 #include "components/history/core/browser/history_backend.h"
 
 #include <stdint.h>
 
 #include <string>
 #include <unordered_set>
 
 #include "base/format_macros.h"
 #include "base/guid.h"
+#include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/history/core/browser/download_constants.h"
 #include "components/history/core/browser/download_row.h"
 #include "components/history/core/browser/history_constants.h"
 #include "components/history/core/browser/history_database.h"
 #include "components/history/core/browser/page_usage_data.h"
 #include "components/history/core/test/history_backend_db_base_test.h"
@@ skipping 936 matching lines @@
   // right transformation was returned.
   CreateBackendAndDatabase();
   std::vector<DownloadRow> results;
   db_->QueryDownloads(&results);
   ASSERT_EQ(1u, results.size());
   EXPECT_EQ(DownloadState::INTERRUPTED, results[0].state);
   EXPECT_EQ(kTestDownloadInterruptReasonCrash, results[0].interrupt_reason);
 
   // Allow the update to propagate, shut down the DB, and confirm that
   // the query updated the on disk database as well.
-  base::MessageLoop::current()->RunUntilIdle();
+  base::RunLoop().RunUntilIdle();
   DeleteBackend();
   {
     sql::Connection db;
     ASSERT_TRUE(db.Open(history_dir_.Append(kHistoryFilename)));
     sql::Statement statement(db.GetUniqueStatement(
         "Select Count(*) from downloads"));
     EXPECT_TRUE(statement.Step());
     EXPECT_EQ(1, statement.ColumnInt(0));
 
     sql::Statement statement1(db.GetUniqueStatement(
@@ skipping 151 matching lines @@
   // URL should win instead.
   std::vector<std::unique_ptr<PageUsageData>> results2 =
       db_->QuerySegmentUsage(time, 1, base::Bind(&FilterURL));
   ASSERT_EQ(1u, results2.size());
   EXPECT_EQ(url2, results2[0]->GetURL());
   EXPECT_EQ(segment_id2, results2[0]->GetID());
 }
 
 }  // namespace
 }  // namespace history