Bluetooth: Add a "connectable" property to the BluetoothDevice.

device/bluetooth/bluetooth_device.cc

Index: device/bluetooth/bluetooth_device.cc
diff --git a/device/bluetooth/bluetooth_device.cc b/device/bluetooth/bluetooth_device.cc
index 378c6cedae797f0c8bc1c147007172cab3780f48..c9ae1980332cca2fc27b2ad1ac903be17b99844b 100644
--- a/device/bluetooth/bluetooth_device.cc
+++ b/device/bluetooth/bluetooth_device.cc
@@ -12,6 +12,7 @@ namespace device {
 
 BluetoothDevice::BluetoothDevice()
     : bluetooth_class_(0),
+      connectable_(true),
       visible_(false),
       bonded_(false),
       connected_(false) {
@@ -167,4 +168,8 @@ bool BluetoothDevice::IsConnected() const {
   return connected_;
 }
 
+bool BluetoothDevice::IsConnectable() const {
+  return connectable_;
+}
+
 }  // namespace device