Method GradientTexture

src/gpu/GlobalCache.h:78–80

 private:
  struct GradientTexture {
    GradientTexture(std::shared_ptr<TextureProxy> textureProxy, BytesKey gradientKey)
        : textureProxy(std::move(textureProxy)), gradientKey(std::move(gradientKey)) {
    }

    std::shared_ptr<TextureProxy> textureProxy = nullptr;
    BytesKey gradientKey = {};