#include "chrome/browser/ui/toasts/api/toast_registry.h"
#include <memory>
#include "base/check.h"
#include "chrome/browser/ui/toasts/api/toast_id.h"
#include "chrome/browser/ui/toasts/api/toast_specification.h"
ToastRegistry::ToastRegistry() = default;
ToastRegistry::~ToastRegistry() = default;
void ToastRegistry::RegisterToast(
ToastId id,
std::unique_ptr<ToastSpecification> specification) { … }
const ToastSpecification* ToastRegistry::GetToastSpecification(
ToastId id) const { … }
bool ToastRegistry::IsEmpty() const { … }