52662 Roll engine 6801b4dae791..a9d49a0f6ef5 (2 commits) (cla: yes, waiting for tree to go green)

52663 Slider (cla: yes, d: examples, f: material design, framework, team, team: gallery, waiting for tree to go green)

52670 Revert “Refactoring Gold to enable both Luci & Cirrus support” (cla: yes, f: cupertino, framework)

52679 Roll engine a9d49a0f6ef5..733933ad5c68 (2 commits) (cla: yes, waiting for tree to go green)

52682 Roll engine 733933ad5c68..fddb0c272e2f (1 commits) (cla: yes, waiting for tree to go green)