Merge "Fix flicker when transiting activities without animation." into oc-dr1-dev

                mEnteringAnimation = true;

                mService.mActivityManagerAppTransitionNotifier.onAppTransitionFinishedLocked(token);

            }

            // If we are hidden but there is no delay needed we immediately

            // apply the Surface transaction so that the ActivityManager

            // can have some guarantee on the Surface state

            // following setting the visibility.

            if (hidden && !delayed) {

            // can have some guarantee on the Surface state following

            // setting the visibility. This captures cases like dismissing

            // the docked or pinned stack where there is no app transition.

            //

            // In the case of a "Null" animation, there will be

            // no animation but there will still be a transition set.

            // We still need to delay hiding the surface such that it

            // can be synchronized with showing the next surface in the transition.

            if (hidden && !delayed && !mService.mAppTransition.isTransitionSet()) {

                SurfaceControl.openTransaction();

                for (int i = mChildren.size() - 1; i >= 0; i--) {

                    mChildren.get(i).mWinAnimator.hide("immediately hidden");