Remove calls to deprecated MessageLoop methods on Windows and Linux.

components/data_usage/core/data_use_aggregator_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/data_usage/core/data_use_aggregator.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
@@ skipping 271 matching lines @@
         context_->CreateRequest(url, net::IDLE, &delegate);
     request->set_first_party_for_cookies(first_party_for_cookies);
 
     ReportingNetworkDelegate::DataUseContextMap data_use_context_map;
     data_use_context_map[request.get()] =
         ReportingNetworkDelegate::DataUseContext(tab_id, connection_type,
                                                  mcc_mnc);
     reporting_network_delegate_->set_data_use_context_map(data_use_context_map);
 
     request->Start();
-    loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
 
     return request;
   }
 
   ReportingNetworkDelegate* reporting_network_delegate() {
     return reporting_network_delegate_.get();
   }
 
   DataUseAggregator* data_use_aggregator() {
     return data_use_aggregator_.get();
@@ skipping 121 matching lines @@
   // Off the record data use should not be reported to observers.
   data_use_aggregator()->ReportOffTheRecordDataUse(1000, 1000);
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(static_cast<size_t>(0),
             test_observer()->observed_data_use().size());
 }
 
 }  // namespace
 
 }  // namespace data_usage