public PipelineDraweeControllerBuilder setCustomDrawableFactories(
      @Nullable ImmutableList<DrawableFactory> customDrawableFactories) {
    mCustomDrawableFactories = customDrawableFactories;
    return getThis();
  }
Concrete implementation of ImagePipeline Drawee controller builder.

<p>See {@link AbstractDraweeControllerBuilder} for more details.
drawee-backends/drawee-pipeline/src/main/java/com/facebook/drawee/backends/pipeline/PipelineDraweeControllerBuilder.java