Nuke WebPassOwnPtr<T> and replace it with std::unique_ptr<T>.

third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerClientsInfo.h

 // Copyright 2014 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 WebServiceWorkerClientsInfo_h
 #define WebServiceWorkerClientsInfo_h
 
 #include "public/platform/WebCallbacks.h"
 #include "public/platform/WebPageVisibilityState.h"
-#include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/WebURL.h"
 #include "public/platform/WebURLRequest.h"
 #include "public/platform/WebVector.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerClientType.h"
 
+#include <memory>
+
 namespace blink {
 
 struct WebServiceWorkerError;
 
 struct WebServiceWorkerClientInfo {
     WebServiceWorkerClientInfo()
         : pageVisibilityState(WebPageVisibilityStateLast)
         , isFocused(false)
         , frameType(WebURLRequest::FrameTypeNone)
         , clientType(WebServiceWorkerClientTypeWindow)
     {
     }
 
     WebString uuid;
 
     WebPageVisibilityState pageVisibilityState;
     bool isFocused;
     WebURL url;
     WebURLRequest::FrameType frameType;
     WebServiceWorkerClientType clientType;
 };
 
 struct WebServiceWorkerClientsInfo {
     WebVector<WebServiceWorkerClientInfo> clients;
 };
 
 // Two WebCallbacks, one for one client, one for a WebVector of clients.
-using WebServiceWorkerClientCallbacks = WebCallbacks<WebPassOwnPtr<WebServiceWorkerClientInfo>, const WebServiceWorkerError&>;
+using WebServiceWorkerClientCallbacks = WebCallbacks<std::unique_ptr<WebServiceWorkerClientInfo>, const WebServiceWorkerError&>;
 using WebServiceWorkerClientsCallbacks = WebCallbacks<const WebServiceWorkerClientsInfo&, const WebServiceWorkerError&>;
 
 } // namespace blink
 
 #endif // WebServiceWorkerClientsInfo_h