Merge "Do not allow wallpapers that are too large"

    // view hierarchy because display lists are generated recursively.

    private static final int POOL_LIMIT = 25;

    private static final int MAX_BITMAP_SIZE = 100 * 1024 * 1024; // 100 MB

    public static final int MAX_BITMAP_SIZE = 100 * 1024 * 1024; // 100 MB

    private static final SynchronizedPool<DisplayListCanvas> sPool =

            new SynchronizedPool<>(POOL_LIMIT);

import android.util.Log;

import android.view.Display;

import android.view.DisplayInfo;

import android.view.DisplayListCanvas;

import android.view.Surface;

import android.view.SurfaceHolder;

import android.view.WindowManager;

                protected Bitmap doInBackground(Void... params) {

                    Throwable exception;

                    try {

                        return mWallpaperManager.getBitmap(true /* hardware */);

                        Bitmap wallpaper = mWallpaperManager.getBitmap(true /* hardware */);

                        if (wallpaper != null

                                && wallpaper.getByteCount() > DisplayListCanvas.MAX_BITMAP_SIZE) {

                            throw new RuntimeException("Wallpaper is too large to draw!");

                        }

                        return wallpaper;

                    } catch (RuntimeException | OutOfMemoryError e) {

                        exception = e;

                    }