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[web:canvaskit] migrate Paint API to UniqueRef #41230
Merged
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Migrate Paint API to
UniqueRef. This includesPaint,ImageFilter(and all subtypes),ColorFilter(and all subtypes).Also fix the following memory leaks:
CkPaintis frequently used by layers where a one-off paint object is created, used, and immediately dropped.CkPaintnow has adisposemethod, and all one-off usages now dispose of the paint after they are done.CkColorFilter.initRawImageFilterwas leaking theSkColorFiltercreated by_initRawColorFilterinside the expression.CkManagedSkImageFilterConvertible.imageFilternow takes a closure, which allows the implementation decide on the lifetime of theSkImageFiltervended to the caller. BecauseCkColorFilteris a const class it cannot store C++ instances inside its own fields, so it creates a temporarySkImageFilterclass to be used by the caller and then it needs to delete it. Now it does.