service worker: Implement NavigationPreloadManager.getState

content/child/service_worker/service_worker_dispatcher.h

Index: content/child/service_worker/service_worker_dispatcher.h
diff --git a/content/child/service_worker/service_worker_dispatcher.h b/content/child/service_worker/service_worker_dispatcher.h
index ccafedf9ea5d1297ca9709ef20b9377f31ecfc3c..4a43c0802e75cb106ef6a7ea92992a35f6d14683 100644
--- a/content/child/service_worker/service_worker_dispatcher.h
+++ b/content/child/service_worker/service_worker_dispatcher.h
@@ -69,6 +69,8 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
           WebServiceWorkerGetRegistrationForReadyCallbacks;
   using WebEnableNavigationPreloadCallbacks =
       blink::WebServiceWorkerRegistration::WebEnableNavigationPreloadCallbacks;
+  using WebGetNavigationPreloadStateCallbacks = blink::
+      WebServiceWorkerRegistration::WebGetNavigationPreloadStateCallbacks;
 
   ServiceWorkerDispatcher(
       ThreadSafeSender* thread_safe_sender,
@@ -111,6 +113,11 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
       int64_t registration_id,
       bool enable,
       std::unique_ptr<WebEnableNavigationPreloadCallbacks> callbacks);
+  // Corresponds to NavigationPreloadManager.getState.
+  void GetNavigationPreloadState(
+      int provider_id,
+      int64_t registration_id,
+      std::unique_ptr<WebGetNavigationPreloadStateCallbacks> callbacks);
 
   // Called when a new provider context for a document is created. Usually
   // this happens when a new document is being loaded, and is called much
@@ -171,6 +178,8 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
       IDMapOwnPointer> GetRegistrationForReadyCallbackMap;
   using EnableNavigationPreloadCallbackMap =
       IDMap<WebEnableNavigationPreloadCallbacks, IDMapOwnPointer>;
+  using GetNavigationPreloadStateCallbackMap =
+      IDMap<WebGetNavigationPreloadStateCallbacks, IDMapOwnPointer>;
 
   typedef std::map<int, blink::WebServiceWorkerProviderClient*>
       ProviderClientMap;
@@ -216,6 +225,9 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
       const ServiceWorkerRegistrationObjectInfo& info,
       const ServiceWorkerVersionAttributes& attrs);
   void OnDidEnableNavigationPreload(int thread_id, int request_id);
+  void OnDidGetNavigationPreloadState(int thread_id,
+                                      int request_id,
+                                      bool enabled);
   void OnRegistrationError(int thread_id,
                            int request_id,
                            blink::WebServiceWorkerError::ErrorType error_type,
@@ -243,6 +255,11 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
       int request_id,
       blink::WebServiceWorkerError::ErrorType error_type,
       const std::string& message);
+  void OnGetNavigationPreloadStateError(
+      int thread_id,
+      int request_id,
+      blink::WebServiceWorkerError::ErrorType error_type,
+      const std::string& message);
   void OnServiceWorkerStateChanged(int thread_id,
                                    int handle_id,
                                    blink::WebServiceWorkerState state);
@@ -283,6 +300,7 @@ class CONTENT_EXPORT ServiceWorkerDispatcher : public WorkerThread::Observer {
   GetRegistrationsCallbackMap pending_get_registrations_callbacks_;
   GetRegistrationForReadyCallbackMap get_for_ready_callbacks_;
   EnableNavigationPreloadCallbackMap enable_navigation_preload_callbacks_;
+  GetNavigationPreloadStateCallbackMap get_navigation_preload_state_callbacks_;
 
   ProviderClientMap provider_clients_;
   ProviderContextMap provider_contexts_;