public static SimpleBitmapReleaser getInstance() {
    if (sInstance == null) {
      sInstance = new SimpleBitmapReleaser();
    }
    return sInstance;
  }
A releaser that just recycles (frees) bitmap memory immediately.
imagepipeline-base/src/main/java/com/facebook/imagepipeline/bitmaps/SimpleBitmapReleaser.java