121     SkFlattenable* readFlattenable(SkFlattenable::Type);
122     template <typename T> sk_sp<T> readFlattenable() {  in readFlattenable()  function
123         return sk_sp<T>((T*)this->readFlattenable(T::GetFlattenableType()));  in readFlattenable()
125     sk_sp<SkColorFilter> readColorFilter() { return this->readFlattenable<SkColorFilter>(); }  in readColorFilter()
126     sk_sp<SkDrawLooper> readDrawLooper() { return this->readFlattenable<SkDrawLooper>(); }  in readDrawLooper()
127     sk_sp<SkImageFilter> readImageFilter() { return this->readFlattenable<SkImageFilter>(); }  in readImageFilter()
128     sk_sp<SkMaskFilter> readMaskFilter() { return this->readFlattenable<SkMaskFilterBase>(); }  in readMaskFilter()
129     sk_sp<SkPathEffect> readPathEffect() { return this->readFlattenable<SkPathEffect>(); }  in readPathEffect()
130     sk_sp<SkShader> readShader() { return this->readFlattenable<SkShaderBase>(); }  in readShader()
305     SkFlattenable* readFlattenable(SkFlattenable::Type) { return nullptr; }  in readFlattenable()  function
307     template <typename T> sk_sp<T> readFlattenable() { return nullptr; }  in readFlattenable()  function