* Replace bare field usage with getter methods;
* Remove Builder;
* Move BluetoothHidDeviceCallback to inner class;
* Remove toArray() and equals();
* Throw IllegalArgumentException where applicable;
* Add an Executor parameter before Callback;
Bug: 72168436, 72168126
Test: make update-api, make, make sl4a.Common
Change-Id: I13095458bf3ded7a376e8d20fd13df12ef426693