bluetooth: Shutdown BluetoothAdapter before DBus on ChromeOS.

device/bluetooth/bluetooth_adapter_factory.cc

Index: device/bluetooth/bluetooth_adapter_factory.cc
diff --git a/device/bluetooth/bluetooth_adapter_factory.cc b/device/bluetooth/bluetooth_adapter_factory.cc
index 33950531312af20a9c055c817a7e4c031c2a37e7..5d36954454ab2b8ef4582aec3b12d2a0282a488c 100644
--- a/device/bluetooth/bluetooth_adapter_factory.cc
+++ b/device/bluetooth/bluetooth_adapter_factory.cc
@@ -12,6 +12,10 @@
 #include "base/memory/weak_ptr.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
+#if defined(OS_CHROMEOS)
+#include "device/bluetooth/bluetooth_adapter_chromeos.h"
+#endif
+
 #if defined(OS_MACOSX)
 #include "base/mac/mac_util.h"
 #endif
@@ -94,6 +98,15 @@ void BluetoothAdapterFactory::GetAdapter(const AdapterCallback& callback) {
 
 }
 
+#if defined(OS_CHROMEOS)
+// static
+void BluetoothAdapterFactory::OnDBusThreadManagerShutdown() {
+  if (default_adapter.Get()) {
+    default_adapter.Get().get()->OnDBusThreadManagerShutdown();
+  }
+}
+#endif
+
 // static
 void BluetoothAdapterFactory::SetAdapterForTesting(
     scoped_refptr<BluetoothAdapter> adapter) {