Merge "Skip setting surface start state of non app window" into tm-qpr-dev

import static android.view.WindowManager.TRANSIT_TO_BACK;

import static android.view.WindowManager.TRANSIT_TO_FRONT;

import static android.view.WindowManager.fixScale;

import static android.window.TransitionInfo.FLAG_IS_INPUT_METHOD;

import static android.window.TransitionInfo.FLAG_IS_OCCLUDED;

import static android.window.TransitionInfo.FLAG_IS_WALLPAPER;

import static android.window.TransitionInfo.FLAG_STARTING_WINDOW_TRANSFER_RECIPIENT;

        boolean isOpening = isOpeningType(info.getType());

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

            final TransitionInfo.Change change = info.getChanges().get(i);

            if ((change.getFlags() & TransitionInfo.FLAG_IS_SYSTEM_WINDOW) != 0) {

            if (change.hasFlags(TransitionInfo.FLAGS_IS_NON_APP_WINDOW)) {

                // Currently system windows are controlled by WindowState, so don't change their

                // surfaces. Otherwise their window tokens could be hidden unexpectedly.

                // surfaces. Otherwise their surfaces could be hidden or cropped unexpectedly.

                // This includes Wallpaper (always z-ordered at bottom) and IME (associated with

                // app), because there may not be a transition associated with their visibility

                // changes, and currently they don't need transition animation.

                continue;

            }

            final SurfaceControl leash = change.getLeash();

                    finishT.setAlpha(leash, 1.f);

                }

            } else if (mode == TRANSIT_CLOSE || mode == TRANSIT_TO_BACK) {

                // Wallpaper/IME are anomalies: their visibility is tied to other WindowStates.

                // As a result, we actually can't hide their WindowTokens because there may not be a

                // transition associated with them becoming visible again. Fortunately, since

                // wallpapers are always z-ordered to the back, we don't have to worry about it

                // flickering to the front during reparenting. Similarly, the IME is reparented to

                // the associated app, so its visibility is coupled. So, an explicit hide is not

                // needed visually anyways.

                if ((change.getFlags() & (FLAG_IS_WALLPAPER | FLAG_IS_INPUT_METHOD)) == 0) {

                finishT.hide(leash);

            }

        }

    }

    }

    /**

     * Reparents all participants into a shared parent and orders them based on: the global transit