backingStorePixelRatio property
@DomName('CanvasRenderingContext2D.webkitBackingStorePixelRation'), @Experimental()
Deprecated always returns 1.0
Implementation
@DomName('CanvasRenderingContext2D.webkitBackingStorePixelRation')
@Experimental()
@deprecated
double get backingStorePixelRatio => 1.0;