Fix typos in device/bluetooth headers.

device/bluetooth/bluetooth_adapter.h

Index: device/bluetooth/bluetooth_adapter.h
diff --git a/device/bluetooth/bluetooth_adapter.h b/device/bluetooth/bluetooth_adapter.h
index 140ba14f1284060c2a1fcc754e49d867d650dbe8..f3067689e922417959b2571a8d29a7f1776ad23b 100644
--- a/device/bluetooth/bluetooth_adapter.h
+++ b/device/bluetooth/bluetooth_adapter.h
@@ -230,7 +230,7 @@ class BluetoothAdapter : public base::RefCounted<BluetoothAdapter> {
 
   // Requests that the adapter change its discoverability state. If
   // |discoverable| is true, then it will be discoverable by other Bluetooth
-  // devices. On successly changing the adapter's discoverability, |callback|
+  // devices. On successfully changing the adapter's discoverability, |callback|
   // will be called. On failure, |error_callback| will be called.
   virtual void SetDiscoverable(bool discoverable,
                                const base::Closure& callback,