public void getTransformedBounds(RectF outBounds) {
    getParentTransform(sTempTransform);
    // IMPORTANT: {@code getBounds} should be called after {@code getParentTransform},
    // because the parent may have to change our bounds.
    outBounds.set(getBounds());
    sTempTransform.mapRect(outBounds);
  }
Gets the transformed bounds of this drawable. Note: bounds are not cropped (otherwise they
would likely be the same as drawable's bounds).

@param outBounds rect to fill with bounds
drawee/src/main/java/com/facebook/drawee/drawable/ForwardingDrawable.java