dawn-native feature enables additional functionality that is supported only when the WebGPU implementation is
wgpu::DawnTogglesDeviceDescriptor may be chained on
wgpu::DeviceDescriptor on device creation to enable Dawn-specific toggles on the device.
wgpu::DawnCacheDeviceDescriptor may be chained on
wgpu::DeviceDescriptor on device creation to enable cache options such as isolation keys.
adapter.CreateDevice(const wgpu::DeviceDescriptor*) may be called.
wgpu::DeviceDescriptordoes nothing, but its presence in the Adapter's set of supported features means that the additional functionality is supported.