PlzNavigate: Make ServiceWorker work with PlzNavigate.

content/browser/service_worker/service_worker_context_core.h

Index: content/browser/service_worker/service_worker_context_core.h
diff --git a/content/browser/service_worker/service_worker_context_core.h b/content/browser/service_worker/service_worker_context_core.h
index 42e25b75e7dbedceda51c7bcc5321fe3eb42d55c..fb89c0de8a128f1d295e9c39d6417cec860e9f07 100644
--- a/content/browser/service_worker/service_worker_context_core.h
+++ b/content/browser/service_worker/service_worker_context_core.h
@@ -42,6 +42,7 @@ class ServiceWorkerContextWrapper;
 class ServiceWorkerDatabaseTaskManager;
 class ServiceWorkerHandle;
 class ServiceWorkerJobCoordinator;
+class ServiceWorkerNavigationHandleCore;
 class ServiceWorkerProviderHost;
 class ServiceWorkerRegistration;
 class ServiceWorkerStorage;
@@ -219,6 +220,14 @@ class CONTENT_EXPORT ServiceWorkerContextCore
     return live_versions_;
   }
 
+  // PlzNavigate
+  // Returns the map keeping track of all ServiceWorkerNavigationHandleCores
+  // registered for ongoing navigations.
+  std::map<int, ServiceWorkerNavigationHandleCore*>&
+  GetNavigationHandleCores() {
+    return navigation_handle_cores_map_;
+  }
+
   std::vector<ServiceWorkerRegistrationInfo> GetAllLiveRegistrationInfo();
   std::vector<ServiceWorkerVersionInfo> GetAllLiveVersionInfo();
 
@@ -294,6 +303,12 @@ class CONTENT_EXPORT ServiceWorkerContextCore
   std::map<int64, ServiceWorkerRegistration*> live_registrations_;
   std::map<int64, ServiceWorkerVersion*> live_versions_;
   std::map<int64, scoped_refptr<ServiceWorkerVersion>> protected_versions_;
+
+  // PlzNavigate
+  // Map of ServiceWorkerNavigationHandleCores used for navigation requests.
+  std::map<int, ServiceWorkerNavigationHandleCore*>
+      navigation_handle_cores_map_;
+
   int next_handle_id_;
   int next_registration_handle_id_;
   // Set in RegisterServiceWorker(), cleared in ClearAllServiceWorkersForTest().