public GenericDraweeHierarchyBuilder setFailureImage(
      Drawable failureDrawable, @Nullable ScalingUtils.ScaleType failureImageScaleType) {
    mFailureImage = failureDrawable;
    mFailureImageScaleType = failureImageScaleType;
    return this;
  }
Sets the failure image and its scale type.

@param failureDrawable drawable to be used as failure image
@param failureImageScaleType scale type for the failure image
@return modified instance of this builder
drawee/src/main/java/com/facebook/drawee/generic/GenericDraweeHierarchyBuilder.java