bluetooth: Shutdown BluetoothAdapter before DBus on ChromeOS.

device/bluetooth/bluetooth_adapter_factory.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 "device/bluetooth/bluetooth_adapter_factory.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/lazy_instance.h"
@@ skipping 77 matching lines @@
 
   DCHECK(default_adapter.Get()->IsInitialized());
 #endif  // defined(OS_WIN)
 
   if (default_adapter.Get()->IsInitialized())
     callback.Run(scoped_refptr<BluetoothAdapter>(default_adapter.Get().get()));
 
 }
 
 // static
+void BluetoothAdapterFactory::Shutdown() {
+  if (default_adapter.Get()) {
+    default_adapter.Get()->Shutdown();
+  }
+}
+
+// static
 void BluetoothAdapterFactory::SetAdapterForTesting(
     scoped_refptr<BluetoothAdapter> adapter) {
   default_adapter.Get() = adapter->GetWeakPtrForTesting();
 }
 
 // static
 bool BluetoothAdapterFactory::HasSharedInstanceForTesting() {
   return default_adapter.Get();
 }
 
 }  // namespace device