Add deprecation warnings to retina image methods.
Review Request #13498 — Created Jan. 10, 2024 and submitted — Latest diff uploaded
We used to rely entirely on JavaScript to handle high-DPI ("retina")
images. These days, we usesrcsetfor everything that comes from an
<img>tag, and media queries for anything that uses CSS
background-image.
- Ran unit tests.
- Did an audit of our codebases and wrote a few patches to make sure
we're not using these anymore.