#include "components/viz/service/surfaces/surface_reference.h"
#include <ostream>
#include "base/strings/stringprintf.h"
namespace viz {
SurfaceReference::SurfaceReference() = default;
SurfaceReference::SurfaceReference(const SurfaceId& parent_id,
const SurfaceId& child_id)
: … { … }
SurfaceReference::SurfaceReference(const SurfaceReference& other) = default;
SurfaceReference::~SurfaceReference() = default;
std::string SurfaceReference::ToString() const { … }
std::ostream& operator<<(std::ostream& out,
const SurfaceReference& surface_reference) { … }
}