Use unique_ptr for Create{ServiceWorkerNetworkProvider,ApplicationCacheHost}

third_party/WebKit/Source/web/WebSharedWorkerImpl.h

 /*
  * Copyright (C) 2009 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
@@ skipping 52 matching lines @@
 // methods must be called from a worker thread. Such methods are suffixed with
 // *OnWorkerThread or have header comments.
 class WebSharedWorkerImpl final : public WebFrameClient,
                                   public WebSharedWorker,
                                   public WebDevToolsAgentClient,
                                   private WorkerLoaderProxyProvider {
  public:
   explicit WebSharedWorkerImpl(WebSharedWorkerClient*);
 
   // WebFrameClient methods to support resource loading thru the 'shadow page'.
-  WebApplicationCacheHost* CreateApplicationCacheHost(
+  std::unique_ptr<WebApplicationCacheHost> CreateApplicationCacheHost(
       WebApplicationCacheHostClient*) override;
   void DidFinishDocumentLoad(WebLocalFrame*) override;
 
   // WebDevToolsAgentClient overrides.
   void SendProtocolMessage(int session_id,
                            int call_id,
                            const WebString&,
                            const WebString&) override;
   void ResumeStartup() override;
   WebDevToolsAgentClient::WebKitClientMessageLoop* CreateClientMessageLoop()
@@ skipping 71 matching lines @@
   RefPtr<WorkerLoaderProxy> loader_proxy_;
 
   WebURL url_;
   WebString name_;
   WebAddressSpace creation_address_space_;
 };
 
 }  // namespace blink
 
 #endif  // WebSharedWorkerImpl_h