16 files declare their use of AssetFactory

AsseticExtension.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticExtension.php
AsseticTokenParser.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Extension/Twig/AsseticTokenParser.php
BasePhpFormulaLoader.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Factory/Loader/BasePhpFormulaLoader.php
CompassFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CompassFilter.php
CssEmbedFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssEmbedFilter.php
CssImportFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/CssImportFilter.php
DependencyExtractorInterface.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/DependencyExtractorInterface.php
functions.php in drupal/core/vendor/kriswallsmith/assetic/src/functions.php
LessFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/LessFilter.php
LessphpFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/LessphpFilter.php
PhpCssEmbedFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/PhpCssEmbedFilter.php
RooleFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/RooleFilter.php
SassFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/Sass/SassFilter.php
ScssphpFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/ScssphpFilter.php
SprocketsFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/SprocketsFilter.php
StylusFilter.php in drupal/core/vendor/kriswallsmith/assetic/src/Assetic/Filter/StylusFilter.php