Allow sigma blur without filter prop
Summary:
Makes some changes to FilterHelper to expose RenderEffects for filters publicly to other classes in the module. We use this in box-shadow, in order to reuse logic for sigma accepting blur filters.
Also fixes a crash related to the conversions back and forward between sigma and radius, where small values would cause a crash.
Changelog: [inernal]
Differential Revision: D55563775
This pull request was exported from Phabricator. Differential Revision: D55563775
This pull request was exported from Phabricator. Differential Revision: D55563775
This pull request was exported from Phabricator. Differential Revision: D55563775
This pull request has been merged in facebook/react-native@efc5ddd3ee988a5d16295a21578d711731a551f6.