Move onUiShowing() call from onResume/onPause to onStart/onStop.

It makes sure bubble doesn't appear on split screen when in-call UI is not showing. Although bubble still shows in recents screen.

It also make sure the same onUiShowing() is not called multiple times.

Bug: 67605985,71746139
Test: InCallActivityTest
PiperOrigin-RevId: 182280886
Change-Id: I2a28d0258c722d530000729a89751c6d6b1ee6fd
3 files changed