ScheduleAsyncBlobCreation() must be called immediately after creating CanvasAsyncBlobCreator(). In fact, it is a misuse if someone creates a CanvasAsyncBlobCreator and does not call ScheduleAsyncBlobCreation afterward. Unify these two functions to avoid such a misuse.
 

ScheduleAsyncBlobCreation() must be called immediately after creating CanvasAsyncBlobCreator. In fact, it is a misuse if someone creates a CanvasAsyncBlobCreator and does not call ScheduleAsyncBlobCreation() afterward. Unify these two functions to avoid such a misuse.