Bug 917220 - Fix IS_HEADSET, r=echou

dom/bluetooth/BluetoothProfileController.h

@@ -47,7 +47,7 @@ BEGIN_BLUETOOTH_NAMESPACE
 
 // Major device class = 0x4, Audio/Video
 // Minor device class = 0x1, Wearable Headset device
-#define IS_HEADSET(cod)              ((GET_MAJOR_SERVICE_CLASS(cod) == 0x4) && \
+#define IS_HEADSET(cod)              ((GET_MAJOR_DEVICE_CLASS(cod) == 0x4) && \
                                      (GET_MINOR_DEVICE_CLASS(cod) == 0x1))
 
 class BluetoothProfileManagerBase;