improve conversation load speed and smoothness
* dismiss using an animation (instead of instantly) when the
conversation loads quickly
* Do not auto-mark-read and load side conversations until after
the main conversation signals onContentReady AND the fade-out
animation completes. Previously, onPageFinished signaled
these, and since onPageFinished is signaled pretty early, it
slowed down the main load in both time and framerate.
Bug: 7360692
Change-Id: I011909c10e8c614891ec762e0d08cc0705a6ad3d
2 files changed