service worker: Implement NavigationPreloadManager.getState

third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h

Index: third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h
diff --git a/third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h b/third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h
index 612fbe0e6f1c1c9e7af37a985929bc6819905d93..4e935d4dbb79f9fa642ae25f2d1189ac73577bbd 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h
+++ b/third_party/WebKit/Source/modules/serviceworkers/NavigationPreloadCallbacks.h
@@ -10,6 +10,7 @@
 namespace blink {
 
 class ScriptPromiseResolver;
+struct WebNavigationPreloadState;
 struct WebServiceWorkerError;
 
 class EnableNavigationPreloadCallbacks final
@@ -27,6 +28,22 @@ class EnableNavigationPreloadCallbacks final
   WTF_MAKE_NONCOPYABLE(EnableNavigationPreloadCallbacks);
 };
 
+class GetNavigationPreloadStateCallbacks final
+    : public WebServiceWorkerRegistration::
+          WebGetNavigationPreloadStateCallbacks {
+ public:
+  GetNavigationPreloadStateCallbacks(ScriptPromiseResolver*);
+  ~GetNavigationPreloadStateCallbacks() override;
+
+  // WebGetNavigationPreloadStateCallbacks interface.
+  void onSuccess(const WebNavigationPreloadState&) override;
+  void onError(const WebServiceWorkerError&) override;
+
+ private:
+  Persistent<ScriptPromiseResolver> m_resolver;
+  WTF_MAKE_NONCOPYABLE(GetNavigationPreloadStateCallbacks);
+};
+
 }  // namespace blink
 
 #endif  // NavigationPreloadCallbacks_h