7640d97421
To do this TaskVisualsChangedDelegate was added which multiplexes two listeners that are closely related. Thumbnail overriding capabilities were also removed. Fix: 342560598 Test: TaskVisualsChangedDelegateTest, TasksRepositoryTest Flag: com.android.launcher3.enable_refactor_task_thumbnail Change-Id: If065e4179cd1f15fe2cdf9b6bae51afcb57abcc6