Convert <google-chart> from Polymer function Polymer({ /* ... */ }) to a class-based class GoogleChart extends PolymerElement.
Class syntax is more modern and pulls less dependencies. Combined with #255 the dependency on legacy Polymer function is removed completely.
It also creates a constructor and a type for JS compiler.
Convert
<google-chart>
from Polymer functionPolymer({ /* ... */ })
to a class-basedclass GoogleChart extends PolymerElement
.Class syntax is more modern and pulls less dependencies. Combined with #255 the dependency on legacy Polymer function is removed completely. It also creates a constructor and a type for JS compiler.