Synchronize access to ServiceDeclaration fields.

ServiceDeclaration objects are accessed by both the binder thread
(addService, addCharacteristic, etc) and the GattService callback thread
(onServiceAdded, etc) and so must be made thread-safe.

Bug: 28201656
Change-Id: Ic2e4b5c21dafceb62f33738b781f908f502f60b3
1 file changed