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

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

 /*
  * 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
@@ skipping 15 matching lines @@
  * 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 WebServiceWorkerProviderClient_h
 #define WebServiceWorkerProviderClient_h
 
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebMessagePortChannel.h"
-#include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/modules/serviceworker/WebServiceWorker.h"
 
+#include <memory>
+
 namespace blink {
 
 class WebServiceWorker;
 class WebString;
 
 // This class is the interface for embedders to talk to
 // ServiceWorkerContainer.
 class BLINK_PLATFORM_EXPORT WebServiceWorkerProviderClient {
 public:
     virtual ~WebServiceWorkerProviderClient() { }
 
-    virtual void setController(WebPassOwnPtr<WebServiceWorker::Handle>, bool shouldNotifyControllerChange) = 0;
+    virtual void setController(std::unique_ptr<WebServiceWorker::Handle>, bool shouldNotifyControllerChange) = 0;
 
-    virtual void dispatchMessageEvent(WebPassOwnPtr<WebServiceWorker::Handle>, const WebString& message, const WebMessagePortChannelArray& channels) = 0;
+    virtual void dispatchMessageEvent(std::unique_ptr<WebServiceWorker::Handle>, const WebString& message, const WebMessagePortChannelArray& channels) = 0;
 };
 
 } // namespace blink
 
 #endif // WebServiceWorkerProviderClient_h