This method asynchronously replaces the content of the given stylesheet
with the content passed to it.
An exception is thrown if this method is used by a stylesheet not
created with the `CSSStyleSheet()` constructor.
This returns the `CSSImportRule` corresponding to the `@import` at-rule
that imported the stylesheet into the document. If the stylesheet
wasn't imported then this property is null.
The intent is to use these to autogenerate prototype declarations for
Window and WorkerGlobalScope classes.
And the spec links are just nice to have :^)
This patch makes both of these classes inherit from RefCounted and
Bindings::Wrappable, plus some minimal rejigging to allow us to keep
using them internally while also exposing them to web content.
This patch adds bindings for the following objects:
- StyleSheet
- StyleSheetList
- CSSStyleSheet
You can get to a document's style sheets via Document.styleSheets
and iterate through them using StyleSheetList's item() and length().
That's it in terms of functionality at this point, but still neat. :^)
