Remove calls to deprecated MessageLoop methods in device.

device/bluetooth/bluez/bluetooth_advertisement_bluez_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 "device/bluetooth/bluez/bluetooth_advertisement_bluez.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 106 matching lines @@
     // Clear the last advertisement we created.
     advertisement_ = nullptr;
 
     adapter_->RegisterAdvertisement(
         CreateAdvertisementData(),
         base::Bind(&BluetoothAdvertisementBlueZTest::RegisterCallback,
                    base::Unretained(this)),
         base::Bind(&BluetoothAdvertisementBlueZTest::AdvertisementErrorCallback,
                    base::Unretained(this)));
 
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
     return advertisement_;
   }
 
   void UnregisterAdvertisement(
       scoped_refptr<BluetoothAdvertisement> advertisement) {
     advertisement->Unregister(
         base::Bind(&BluetoothAdvertisementBlueZTest::Callback,
                    base::Unretained(this)),
         base::Bind(&BluetoothAdvertisementBlueZTest::AdvertisementErrorCallback,
                    base::Unretained(this)));
 
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
   void TriggerReleased(scoped_refptr<BluetoothAdvertisement> advertisement) {
     BluetoothAdvertisementBlueZ* adv =
         static_cast<BluetoothAdvertisementBlueZ*>(advertisement.get());
     bluez::FakeBluetoothLEAdvertisementServiceProvider* provider =
         static_cast<bluez::FakeBluetoothLEAdvertisementServiceProvider*>(
             adv->provider());
     provider->Release();
   }
@@ skipping 91 matching lines @@
   TriggerReleased(advertisement);
   EXPECT_TRUE(observer_->released());
 
   // Unregistering an advertisement that has been released should give us an
   // error.
   UnregisterAdvertisement(advertisement);
   ExpectError(BluetoothAdvertisement::ERROR_ADVERTISEMENT_DOES_NOT_EXIST);
 }
 
 }  // namespace bluez