Merge changes from topic 'am-e11b88dcb48e48a39fa64661e88d92aa'

* changes:
  Merge changes Ib9d0f4fc,I47195f91,Ib26ef543 into cw-f-dev am: 79665f9679 am: eb78c35466
  Remove unused webkit assets. am: e707fa7a2f am: 41c6928f60
  Remove bootanimation sounds. am: dc984e4f9a am: f60f4cf4dc
  Reduce the size of boot animaion assets. am: 8386dc435c am: e953d141b4