Merge "Prevent WallpaperManager#getBitmap return recycled bitmap." into sc-v2-dev am: d4468037c7 am: e386c935ab

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15824230

Change-Id: I55a0ab040e92f809731a22b7c967768eaae3e7d2

core/java/android/app/WallpaperManager.java

@@ -563,7 +563,7 @@ public class WallpaperManager {
             }
             if (returnDefault) {
                 Bitmap defaultWallpaper = mDefaultWallpaper;
-                if (defaultWallpaper == null) {
+                if (defaultWallpaper == null || defaultWallpaper.isRecycled()) {
                     defaultWallpaper = getDefaultWallpaper(context, which);
                     synchronized (this) {
                         mDefaultWallpaper = defaultWallpaper;