mac: Prepare for -Wunused-functions.

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 24 matching lines @@
 
 typedef std::vector<BluetoothAdapterFactory::AdapterCallback>
     AdapterCallbackList;
 
 // List of adapter callbacks to be called once the adapter is initialized.
 // Since Google C++ Style (and clang's static analyzer) forbids us having
 // exit-time destructors we use a lazy instance for it.
 base::LazyInstance<AdapterCallbackList> adapter_callbacks =
     LAZY_INSTANCE_INITIALIZER;
 
+#if defined(OS_WIN)
 void RunAdapterCallbacks() {
   CHECK(default_adapter.Get().get());
   scoped_refptr<BluetoothAdapter> adapter(default_adapter.Get().get());
   for (std::vector<BluetoothAdapterFactory::AdapterCallback>::const_iterator
            iter = adapter_callbacks.Get().begin();
        iter != adapter_callbacks.Get().end();
        ++iter) {
     iter->Run(adapter);
   }
   adapter_callbacks.Get().clear();
 }
+#endif  // defined(OS_WIN)
 
 }  // namespace
 
 namespace device {
 
 // static
 bool BluetoothAdapterFactory::IsBluetoothAdapterAvailable() {
 #if defined(OS_CHROMEOS)
   return true;
 #elif defined(OS_WIN)
@@ skipping 29 matching lines @@
     adapter_callbacks.Get().push_back(callback);
   }
 }
 
 // static
 scoped_refptr<BluetoothAdapter> BluetoothAdapterFactory::MaybeGetAdapter() {
   return scoped_refptr<BluetoothAdapter>(default_adapter.Get().get());
 }
 
 }  // namespace device