tree b079aae10206fad613f442d6cd9b515e261c82d4
parent ab1446d0f5eec61d339c4bbcb20d922b25fd1e73
author Dake Gu <dake@google.com> 1509752138 -0700
committer Dake Gu <dake@google.com> 1509761909 -0700

leanback: support DiffUtil in GuidedStepSupportFragment

By default uses GuidedActionDiffCallback, it uses
GuidedAction.getId() to decide "item is the same".

Bug: 68885247
Test: recyclerViewDiffTest

Change-Id: I8cc6d991b9d2cbb27f0935c3ab6f6efc97794a85