Add two interfaces for ServiceWorkerProviderContext/ProviderHost

content/browser/service_worker/service_worker_navigation_handle_core.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_NAVIGATION_HANDLE_CORE_H_
 #define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_NAVIGATION_HANDLE_CORE_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
+#include "content/common/content_export.h"
 
 namespace content {
 
 class ServiceWorkerContextWrapper;
 class ServiceWorkerNavigationHandle;
 class ServiceWorkerProviderHost;
 
 // PlzNavigate
 // This class is used to manage the lifetime of ServiceWorkerProviderHosts
 // created during navigations. This class is created on the UI thread, but
 // should only be accessed from the IO thread afterwards. It is the IO thread
 // pendant of ServiceWorkerNavigationHandle. See the
 // ServiceWorkerNavigationHandle header for more details about the lifetime of
 // both classes.
-class ServiceWorkerNavigationHandleCore {
+class CONTENT_EXPORT ServiceWorkerNavigationHandleCore {
  public:
   ServiceWorkerNavigationHandleCore(
       base::WeakPtr<ServiceWorkerNavigationHandle> ui_handle,
       ServiceWorkerContextWrapper* context_wrapper);
   ~ServiceWorkerNavigationHandleCore();
 
   // Called when a ServiceWorkerProviderHost was pre-created for the navigation
   // tracked by this ServiceWorkerNavigationHandleCore. Takes ownership of
   // |precreated_host|.
   void DidPreCreateProviderHost(
@@ skipping 11 matching lines @@
   std::unique_ptr<ServiceWorkerProviderHost> precreated_host_;
   scoped_refptr<ServiceWorkerContextWrapper> context_wrapper_;
   base::WeakPtr<ServiceWorkerNavigationHandle> ui_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerNavigationHandleCore);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_NAVIGATION_HANDLE_CORE_H_