The `webui_examples` is a standalone example app that hosts
chrome://webui-gallery without needing to build all of Chrome. This provides
parity with `views_examples` in `//ui/views/examples` for WebUI components.
*To run the WebUI Examples Standalone App:*
`<output_dir>/webui_examples`
Note: `webui_examples` currently only works for platforms with Aura support.