3cd48043a3
Set-up dummy animation so we can start treating windows associated with the replacing app token like they are in transition before the new app window is ready for us to run the real transition animation. This allows us to make the right decisions at various call points where an animation is expected to be running for a replacing window but the real animation isn't set yet. Also, removed unused field indicating if an app token is animating a replacement window since it was always set to true and checked/set to the same value as AppWindowToken.mWillReplaceWindow. Bug: 25645069 Change-Id: Ie216ed5bd60fb2a15da61c7050c9344c48b1c5fb