am 54c3529b: Merge "WallpaperManager: add NULL pointer check for getCropAndSetWallpaperIntent"

* commit '54c3529b4d3f86488799caa0e62a1f3929a79a39':
  WallpaperManager: add NULL pointer check for getCropAndSetWallpaperIntent

core/java/android/app/WallpaperManager.java

@@ -664,6 +664,10 @@ public class WallpaperManager {
      *         not "image/*"
      */
     public Intent getCropAndSetWallpaperIntent(Uri imageUri) {
+        if (imageUri == null) {
+            throw new IllegalArgumentException("Image URI must not be null");
+        }
+
         if (!ContentResolver.SCHEME_CONTENT.equals(imageUri.getScheme())) {
             throw new IllegalArgumentException("Image URI must be of the "
                     + ContentResolver.SCHEME_CONTENT + " scheme type");