WindowlessViewRoot: Add transparency and SurfaceInset support

package android.view;

import android.content.res.Configuration;

import android.graphics.PixelFormat;

import android.graphics.Rect;

import android.os.IBinder;

import android.os.RemoteException;

    @Override

    public void remove(android.view.IWindow window) {}

    private boolean isOpaque(WindowManager.LayoutParams attrs) {

        if (attrs.surfaceInsets.left != 0 || attrs.surfaceInsets.top != 0 ||

                attrs.surfaceInsets.right != 0 || attrs.surfaceInsets.bottom != 0) {

            return false;

        }

        return !PixelFormat.formatHasAlpha(attrs.format);

    }

    @Override

    public int relayout(IWindow window, int seq, WindowManager.LayoutParams attrs,

            int requestedWidth, int requestedHeight, int viewFlags, int flags, long frameNumber,

                    "Invalid window token (never added or removed already)");

        }

        SurfaceControl.Transaction t = new SurfaceControl.Transaction();

        t.show(sc).setBufferSize(sc, requestedWidth, requestedHeight).apply();

        t.show(sc).setBufferSize(sc,

                requestedWidth + attrs.surfaceInsets.left + attrs.surfaceInsets.right,

                requestedHeight + attrs.surfaceInsets.top + attrs.surfaceInsets.bottom)

            .setOpaque(sc, isOpaque(attrs))

            .apply();

        outSurfaceControl.copyFrom(sc);

        outFrame.set(0, 0, requestedWidth, requestedHeight);