Test suite to run images/ with --enable-gpu-rasterization.
This suite tests YUV decoding and rasterization for images that have been fully loaded at decode time and formats that support it, e.g.
Because incremental YUV decoding hasn't been implemented (crbug.com/943519), the WebP tests use JavaScript to ensure all image data has been received before we attempt decoding. TODO(crbug.com/730267): Verify JPEG tests always go through YUV decoding.