Merge changes from topic 'recents_transition' into nyc-dev

* changes:
  Implement transition for docking task in recents #6
  Implement transition for docking task in recents #5
  Implement transition for docking task in recents #4
  Implement transition for docking task in recents #3
  Implement transition for docking task in recents #2
  Implement transition for docking task in recents #1
  Show a scrim activity if task is not resizable