Remove calls to deprecated MessageLoop methods in chrome.

chrome/browser/predictors/autocomplete_action_predictor_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.
 
 #include "chrome/browser/predictors/autocomplete_action_predictor.h"
 
 #include <stddef.h>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/guid.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/history/core/browser/in_memory_database.h"
 #include "components/history/core/browser/url_database.h"
@@ skipping 64 matching lines @@
       : ui_thread_(BrowserThread::UI, &loop_),
         db_thread_(BrowserThread::DB, &loop_),
         file_thread_(BrowserThread::FILE, &loop_),
         profile_(new TestingProfile()),
         predictor_(new AutocompleteActionPredictor(profile_.get())) {
   }
 
   ~AutocompleteActionPredictorTest() override {
     predictor_.reset(NULL);
     profile_.reset(NULL);
-    loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
   void SetUp() override {
     base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
         switches::kPrerenderFromOmnibox,
         switches::kPrerenderFromOmniboxSwitchValueEnabled);
 
     predictor_->CreateLocalCachesFromDatabase();
     ASSERT_TRUE(profile_->CreateHistoryService(true, false));
     profile_->BlockUntilHistoryProcessesPendingRequests();
@@ skipping 269 matching lines @@
          AutocompleteActionPredictor::ACTION_PRERENDER) ?
         AutocompleteActionPredictor::ACTION_PRECONNECT :
         test_url_db[i].expected_action;
     EXPECT_EQ(expected_action,
               predictor()->RecommendAction(test_url_db[i].user_text, match))
         << "Unexpected action for " << match.destination_url;
   }
 }
 
 }  // namespace predictors