Deletes mojo::Callback

components/arc/bluetooth/arc_bluetooth_bridge.cc

Index: components/arc/bluetooth/arc_bluetooth_bridge.cc
diff --git a/components/arc/bluetooth/arc_bluetooth_bridge.cc b/components/arc/bluetooth/arc_bluetooth_bridge.cc
index 1d0a6c5b07c0a400f5904f7cb72ed6cba758154c..50d5f963167b36d812bba07999fd4fce00e73757 100644
--- a/components/arc/bluetooth/arc_bluetooth_bridge.cc
+++ b/components/arc/bluetooth/arc_bluetooth_bridge.cc
@@ -389,18 +389,18 @@ void ArcBluetoothBridge::CancelDiscovery() {
 }
 
 void ArcBluetoothBridge::OnPoweredOn(
-    const mojo::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
+    const base::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
   callback.Run(mojom::BluetoothAdapterState::ON);
   SendCachedPairedDevices();
 }
 
 void ArcBluetoothBridge::OnPoweredOff(
-    const mojo::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
+    const base::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
   callback.Run(mojom::BluetoothAdapterState::OFF);
 }
 
 void ArcBluetoothBridge::OnPoweredError(
-    const mojo::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
+    const base::Callback<void(mojom::BluetoothAdapterState)>& callback) const {
   LOG(WARNING) << "failed to change power state";
 
   callback.Run(bluetooth_adapter_->IsPowered()