Fix bubble for conference call.

Fix bubble conference call bugs once and for all.
ReturnToCallController.onDsconnect() is called twice when ending the last call
in conference call: one for the last call itself, one for the parent call. And
we should do nothing for the parent call. This change avoids extra handling in
Bubble.showText() and Bubble.hideAndReset().

Test: ReturnToCallControllerTest
PiperOrigin-RevId: 165195412
Change-Id: Ib21fac6dd7ad9fe85c3070ce1295f63a91c61a02
3 files changed
tree: ec729d0cc41ce64a298f3b0d8aa9cea36d161504
  1. assets/
  2. java/
  3. Android.mk
  4. AndroidManifest.xml
  5. LICENSE