bluetooth: Stop support of reconnecting devices not supporting pairing

device/bluetooth/bluetooth_device.h

Index: device/bluetooth/bluetooth_device.h
diff --git a/device/bluetooth/bluetooth_device.h b/device/bluetooth/bluetooth_device.h
index e0545fa27677ab9cf877fd46184a886deddb402f..977ee8b1a4b385489e0735be7f91cf8eef315d37 100644
--- a/device/bluetooth/bluetooth_device.h
+++ b/device/bluetooth/bluetooth_device.h
@@ -259,10 +259,6 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothDevice {
   bool IsPairable() const;
 
   // Indicates whether the device is paired with the adapter.
-  // On Chrome OS this function also returns true if the user has connected
-  // to the device in the past.
-  // TODO(crbug.com/649651): Change Chrome OS to only return true if the
-  // device is actually paired.
   virtual bool IsPaired() const = 0;
 
   // Indicates whether the device is currently connected to the adapter.
@@ -285,10 +281,6 @@ class DEVICE_BLUETOOTH_EXPORT BluetoothDevice {
   // were called after the corresponding call to Connect().
   virtual bool IsConnecting() const = 0;
 
-  // Indicates whether the device can be trusted, based on device properties,
-  // such as vendor and product id.
-  bool IsTrustable() const;
-
   // Returns the set of UUIDs that this device supports.
   //  * For classic Bluetooth devices this data is collected from both the EIR
   //    data and SDP tables.