am fd5e24b4: Merge "Show swap button if there is active and background call." into lmp-dev

* commit 'fd5e24b47654e45a2e45e4940c0cef99cf2fabba':
  Show swap button if there is active and background call.
tree: 8e1c656d8bf57344e1e1d6e3259dcc51a6488743
  1. InCallUI/