am b5fa4dff: Merge "Fix bug 2594126 Do not crash when ViewRoot is trying to...

am b5fa4dff: Merge "Fix bug 2594126 Do not crash when ViewRoot is trying to play a UI sound. This CL doesn\'t fix why mView can be null in the first place, but prevents a crash when mView is null and a UI sound is to be played." into froyo

Merge commit 'b5fa4dff' into froyo-plus-aosp

* commit 'b5fa4dff':
  Fix bug 2594126 Do not crash when ViewRoot is trying to play a UI