text: /*
   * Copyright (C) 2013 Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_EXPORTED_WEB_EMBEDDED_WORKER_IMPL_H_
  #define THIRD_PARTY_BLINK_RENDERER_MODULES_EXPORTED_WEB_EMBEDDED_WORKER_IMPL_H_
  
  #include <memory>
  
  #include "base/macros.h"
  #include "mojo/public/cpp/bindings/pending_remote.h"
  #include "third_party/blink/public/mojom/cache_storage/cache_storage.mojom-blink-forward.h"
  #include "third_party/blink/public/web/web_embedded_worker.h"
  #include "third_party/blink/public/web/web_embedded_worker_start_data.h"
  #include "third_party/blink/renderer/core/workers/global_scope_creation_params.h"
  #include "third_party/blink/renderer/core/workers/worker_clients.h"
  #include "third_party/blink/renderer/modules/modules_export.h"
  #include "third_party/blink/renderer/modules/service_worker/service_worker_content_settings_proxy.h"
  #include "third_party/blink/renderer/platform/heap/handle.h"
  
  namespace blink {
  
  class ServiceWorkerInstalledScriptsManager;
  class ServiceWorkerThread;
  struct CrossThreadFetchClientSettingsObjectData;
  
  // The implementation of WebEmbeddedWorker. This is responsible for starting
  // and terminating a service worker thread. Lives on a ThreadPool background
  // thread.
  //
  // Because it lives on a ThreadPool thread, this class does not make
  // GarbageCollected objects (https://crbug.com/988335).
  class MODULES_EXPORT WebEmbeddedWorkerImpl final : public WebEmbeddedWorker {
   public:
    explicit WebEmbeddedWorkerImpl(WebServiceWorkerContextClient*);
    ~WebEmbeddedWorkerImpl() override;
  
    // WebEmbeddedWorker overrides.
    void StartWorkerContext(
        std::unique_ptr<WebEmbeddedWorkerStartData>,
        std::unique_ptr<WebServiceWorkerInstalledScriptsManagerParams>,
        CrossVariantMojoRemote<
            mojom::blink::WorkerContentSettingsProxyInterfaceBase>
            content_settings,
        CrossVariantMojoRemote<mojom::blink::CacheStorageInterfaceBase>
            cache_storage,
        CrossVariantMojoRemote<mojom::blink::BrowserInterfaceBrokerInterfaceBase>
            browser_interface_broker,
        scoped_refptr<base::SingleThreadTaskRunner> initiator_thread_task_runner)
        override;
    void TerminateWorkerContext() override;
  
    void WaitForShutdownForTesting();
  
   private:
    void StartWorkerThread(
        std::unique_ptr<WebEmbeddedWorkerStartData> worker_start_data,
        std::unique_ptr<ServiceWorkerInstalledScriptsManager>,
        std::unique_ptr<ServiceWorkerContentSettingsProxy>,
        mojo::PendingRemote<mojom::blink::CacheStorage>,
        mojo::PendingRemote<mojom::blink::BrowserInterfaceBroker>,
        scoped_refptr<base::SingleThreadTaskRunner> initiator_thread_task_runner);
  
    // Creates a cross-thread copyable outside settings object for top-level
    // worker script fetch.
    std::unique_ptr<CrossThreadFetchClientSettingsObjectData>
    CreateFetchClientSettingsObjectData(
        const KURL& script_url,
        const SecurityOrigin*,
        const HttpsState&,
        network::mojom::IPAddressSpace,
        const WebFetchClientSettingsObject& passed_settings_object);
  
    // Client must remain valid through the entire life time of the worker.
    WebServiceWorkerContextClient* const worker_context_client_;
  
    std::unique_ptr<ServiceWorkerThread> worker_thread_;
  
    bool asked_to_terminate_ = false;
  
    DISALLOW_COPY_AND_ASSIGN(WebEmbeddedWorkerImpl);
  };
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_EXPORTED_WEB_EMBEDDED_WORKER_IMPL_H_
  