am 882c5afa: am 531a41a8: am e51f0e30: Replace placeholder subject bubble asset with a drawable resource.

* commit '882c5afa482c26c9a042a51ddb31d0d39a686c84':
  Replace placeholder subject bubble asset with a drawable resource.
tree: bfcd34d077ce708764f7a6dbf865b5d4cb460d69
  1. InCallUI/