Adopt ES6 Class Syntax for CSSStyleDeclarationTextEditor.
The const keyword isn't allowed in strict mode, and ES6 class method scope uses strict mode implicitly. Instances of const will need to be replaced with var.
Created attachment 249354 [details]
Comment on attachment 249354 [details]
Clearing flags on attachment: 249354
Committed r181912: <http://trac.webkit.org/changeset/181912>
All reviewed patches have been landed. Closing bug.