Make nesting/running states a RunLoop rather than a MessageLoop concept.

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 75 matching lines @@
         base::Bind(&BluetoothAdvertisementBlueZTest::GetAdapterCallback,
                    base::Unretained(this)));
     base::RunLoop().Run();
   }
 
   // Called whenever BluetoothAdapter is retrieved successfully.
   void GetAdapterCallback(scoped_refptr<BluetoothAdapter> adapter) {
     adapter_ = adapter;
     ASSERT_NE(adapter_.get(), nullptr);
     ASSERT_TRUE(adapter_->IsInitialized());
-    if (base::MessageLoop::current() &&
-        base::MessageLoop::current()->is_running()) {
+    if (base::RunLoop::IsRunningOnCurrentThread())
       base::MessageLoop::current()->QuitWhenIdle();
-    }
   }
 
   std::unique_ptr<BluetoothAdvertisement::Data> CreateAdvertisementData() {
     std::unique_ptr<BluetoothAdvertisement::Data> data =
         base::MakeUnique<BluetoothAdvertisement::Data>(
             BluetoothAdvertisement::ADVERTISEMENT_TYPE_BROADCAST);
     data->set_service_uuids(
         base::MakeUnique<BluetoothAdvertisement::UUIDList>());
     data->set_manufacturer_data(
         base::MakeUnique<BluetoothAdvertisement::ManufacturerData>());
@@ skipping 165 matching lines @@
   EXPECT_TRUE(advertisement);
 
   // Shutdown the default adapter.
   BluetoothAdapterFactory::Shutdown();
 
   UnregisterAdvertisement(advertisement);
   ExpectError(BluetoothAdvertisement::ERROR_ADVERTISEMENT_DOES_NOT_EXIST);
 }
 
 }  // namespace bluez