@Override
  public void putExtras(@Nullable Map<String, ?> extras) {
    if (extras == null) return;
    for (Map.Entry<String, ?> entry : extras.entrySet()) {
      putExtra(entry.getKey(), entry.getValue());
    }
  }
Calls {@code onPriorityChanged} on each element of the list. Does nothing if list == null
imagepipeline/src/main/java/com/facebook/imagepipeline/producers/BaseProducerContext.java