Work on issue #5144065: Tap on Music icon from Home screen - a different app opens

When force stopping an app, when removing its activities also finish any
activities from other apps above it in the task.  This avoids some situations
where the task gets into a bad state where its root becomes a different app.

Change-Id: I79e5cd520ae321bec80adefd2ccc2b0370ace372
1 file changed